PATENT DOCUMENT

Publication Number: US-10613634-B2
Application Number: US-201816102409-A
Country: US
Kind Code: B2

Title: Devices and methods for controlling media presentation

Abstract:
An electronic device is configured to: while presenting media content at a first non-zero playback speed, detect a press input by a first contact on a first media control; and, in response to detecting the press input: determine whether an intensity of the first contact is above a first intensity threshold; if the intensity of the first contact is above the first intensity threshold, present the media content at a second playback speed, where the second playback speed is faster than the first non-zero playback speed; and, if the intensity of the first contact is below the first intensity threshold, maintain presentation of the media content at the first non-zero playback speed.

Claims:
What is claimed is: 
     
       1. A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions which, when executed by an electronic device with a display, a touch-sensitive surface, and one or more sensors to detect intensities of contacts with the touch-sensitive surface, cause the electronic device to:
 while presenting media content at a first speed, detect a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display; and, 
 in response to detecting the press input by the first contact:
 determine whether a first intensity of the first contact has satisfied a first intensity threshold; 
 subsequent to determining whether the first intensity of the first contact has satisfied the first intensity threshold, determine whether the first contact continues to satisfy a second intensity threshold during a predefined time interval; 
 in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, present the media content at a first fast-forward speed that is higher than the first speed as long as the first contact satisfies the second intensity threshold; and, 
 in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval, present the media content at the first fast-forward speed. 
 
 
     
     
       2. The storage medium of  claim 1 , wherein the first intensity threshold is higher than the second intensity threshold. 
     
     
       3. The storage medium of  claim 1 , including instructions which, when executed by the electronic device, cause the electronic device to:
 while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, detect a second intensity of the first contact that does not satisfy the second intensity threshold subsequent to the predefined time interval; and, 
 in response to detecting the second intensity of the first contact that does not satisfy the second intensity threshold subsequent to the predefined time interval, cease to present the media content at the first fast-forward speed. 
 
     
     
       4. The storage medium of  claim 1 , including instructions which, when executed by the electronic device, cause the electronic device to:
 while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval, detect a press input by a second contact on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display; and, 
 determine whether a first intensity of the second contact has satisfied the first intensity threshold; 
 subsequent to determining whether the first intensity of the second contact has satisfied the first intensity threshold, determine whether the second contact satisfies the second intensity threshold; and, 
 in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact does not satisfy the second intensity threshold, present the media content at a second fast-forward speed that is higher than the first fast-forward speed. 
 
     
     
       5. The storage medium of  claim 4 , including instructions which, when executed by the electronic device, cause the electronic device to:
 in response to detecting the press input by the second contact, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact satisfies the second intensity threshold, present the media content at the first fast-forward speed while the second contact satisfies the second intensity threshold. 
 
     
     
       6. The storage medium of  claim 5 , including instructions which, when executed by the electronic device, cause the electronic device to:
 in response to detecting the press input by the second contact, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact satisfies the second intensity threshold, visually distinguish the first media control on the display while the second contact satisfies the second intensity threshold. 
 
     
     
       7. The storage medium of  claim 1 , including instructions which, when executed by the electronic device, cause the electronic device to:
 while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval and while continuing to detect the first contact on the touch-sensitive surface, detect a second intensity of the first contact that satisfies a third intensity threshold that is higher than the first intensity threshold; and, 
 in response to detecting the second intensity of the first contact, present the media content at a second fast-forward speed that is higher than the first fast-forward speed. 
 
     
     
       8. The storage medium of  claim 7 , including instructions which, when executed by the electronic device, cause the electronic device to:
 while presenting the media content at the second fast-forward speed and while continuing to detect the first contact on the touch-sensitive surface, detect a third intensity of the first contact that does not satisfy a fourth intensity threshold; and, 
 in response to detecting the third intensity of the first contact, present the media content at the first fast-forward speed. 
 
     
     
       9. An electronic device, comprising:
 a display; 
 a touch-sensitive surface; 
 one or more sensors to detect intensities of contacts with the touch-sensitive surface; 
 one or more processors; 
 memory; and 
 one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for:
 while presenting media content at a first speed, detecting a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display; and, 
 in response to detecting the press input by the first contact:
 determining whether a first intensity of the first contact has satisfied a first intensity threshold; 
 subsequent to determining whether the first intensity of the first contact has satisfied the first intensity threshold, determining whether the first contact continues to satisfy a second intensity threshold during a predefined time interval; 
 in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, presenting the media content at a first fast-forward speed that is higher than the first speed as long as the first contact satisfies the second intensity threshold; and, 
 in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval, presenting the media content at the first fast-forward speed. 
 
 
 
     
     
       10. The electronic device of  claim 9 , wherein the first intensity threshold is higher than the second intensity threshold. 
     
     
       11. The electronic device of  claim 9 , wherein the one or more programs include instructions for:
 while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, detecting a second intensity of the first contact that does not satisfy the second intensity threshold subsequent to the predefined time interval; and, 
 in response to detecting the second intensity of the first contact that does not satisfy the second intensity threshold subsequent to the predefined time interval, ceasing to present the media content at the first fast-forward speed. 
 
     
     
       12. The electronic device of  claim 9 , wherein the one or more programs include instructions for:
 while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval, detecting a press input by a second contact on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display; and, 
 determining whether a first intensity of the second contact has satisfied the first intensity threshold; 
 subsequent to determining whether the first intensity of the second contact has satisfied the first intensity threshold, determining whether the second contact satisfies the second intensity threshold; and, 
 in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact does not satisfy the second intensity threshold, presenting the media content at a second fast-forward speed that is higher than the first fast-forward speed. 
 
     
     
       13. The electronic device of  claim 12 , wherein the one or more programs include instructions for:
 in response to detecting the press input by the second contact, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact satisfies the second intensity threshold, presenting the media content at the first fast-forward speed while the second contact satisfies the second intensity threshold. 
 
     
     
       14. The electronic device of  claim 13 , wherein the one or more programs include instructions for:
 in response to detecting the press input by the second contact, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact satisfies the second intensity threshold, visually distinguishing the first media control on the display while the second contact satisfies the second intensity threshold. 
 
     
     
       15. The electronic device of  claim 9 , wherein the one or more programs include instructions for:
 while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval and while continuing to detect the first contact on the touch-sensitive surface, detecting a second intensity of the first contact that satisfies a third intensity threshold that is higher than the first intensity threshold; and, 
 in response to detecting the second intensity of the first contact, presenting the media content at a second fast-forward speed that is higher than the first fast-forward speed. 
 
     
     
       16. The electronic device of  claim 15 , wherein the one or more programs include instructions for:
 while presenting the media content at the second fast-forward speed and while continuing to detect the first contact on the touch-sensitive surface, detecting a third intensity of the first contact that does not satisfy a fourth intensity threshold; and, 
 in response to detecting the third intensity of the first contact, presenting the media content at the first fast-forward speed. 
 
     
     
       17. A method, comprising:
 at an electronic device with a touch-sensitive surface and a display, wherein the electronic device includes one or more sensors to detect intensities of contacts with the touch-sensitive surface:
 while presenting media content at a first speed, detecting a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display; and, 
 in response to detecting the press input by the first contact:
 determining whether a first intensity of the first contact has satisfied a first intensity threshold; 
 subsequent to determining whether the first intensity of the first contact has satisfied the first intensity threshold, determining whether the first contact continues to satisfy a second intensity threshold during a predefined time interval; 
 in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, presenting the media content at a first fast-forward speed that is higher than the first speed as long as the first contact satisfies the second intensity threshold; and, 
 in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval, presenting the media content at the first fast-forward speed. 
 
 
 
     
     
       18. The method of  claim 17 , wherein the first intensity threshold is higher than the second intensity threshold. 
     
     
       19. The method of  claim 17 , including:
 while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, detecting a second intensity of the first contact that does not satisfy the second intensity threshold subsequent to the predefined time interval; and, 
 in response to detecting the second intensity of the first contact that does not satisfy the second intensity threshold subsequent to the predefined time interval, ceasing to present the media content at the first fast-forward speed. 
 
     
     
       20. The method of  claim 17 , including:
 while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval, detecting a press input by a second contact on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display; and, 
 determining whether a first intensity of the second contact has satisfied the first intensity threshold; 
 subsequent to determining whether the first intensity of the second contact has satisfied the first intensity threshold, determining whether the second contact satisfies the second intensity threshold; and, 
 in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact does not satisfy the second intensity threshold, presenting the media content at a second fast-forward speed that is higher than the first fast-forward speed. 
 
     
     
       21. The method of  claim 20 , including:
 in response to detecting the press input by the second contact, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact satisfies the second intensity threshold, presenting the media content at the first fast-forward speed while the second contact satisfies the second intensity threshold. 
 
     
     
       22. The method of  claim 21 , including:
 in response to detecting the press input by the second contact, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact satisfies the second intensity threshold, visually distinguishing the first media control on the display while the second contact satisfies the second intensity threshold. 
 
     
     
       23. The method of  claim 17 , including:
 while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval and while continuing to detect the first contact on the touch-sensitive surface, detecting a second intensity of the first contact that satisfies a third intensity threshold that is higher than the first intensity threshold; and, 
 in response to detecting the second intensity of the first contact, presenting the media content at a second fast-forward speed that is higher than the first fast-forward speed. 
 
     
     
       24. The method of  claim 23 , including:
 while presenting the media content at the second fast-forward speed and while continuing to detect the first contact on the touch-sensitive surface, detecting a third intensity of the first contact that does not satisfy a fourth intensity threshold; and, 
 in response to detecting the third intensity of the first contact, presenting the media content at the first fast-forward speed.

Description:
RELATED APPLICATION 
     This application is a continuation of U.S. application Ser. No. 14/866,159, filed Sep. 25, 2015, which claims priority to U.S. Provisional Patent Application Ser. No. 62/129,941, filed Mar. 8, 2015, entitled “Devices and Methods for Controlling Media Presentation,” both of which are incorporated by reference herein in their entirety. 
    
    
     TECHNICAL FIELD 
     This relates generally to electronic devices with touch-sensitive surfaces, including but not limited to electronic devices with touch-sensitive surfaces for controlling playback of digital media, including fast scanning through media files. 
     BACKGROUND 
     The use of touch-sensitive surfaces as input devices for computers and other electronic computing devices has increased significantly in recent years. Exemplary touch-sensitive surfaces include touchpads and touch-screen displays. Such surfaces are sometimes used to control presentation of video, audio, and/or other media on a display, for example by interacting with virtual play, pause, fast forward, and rewind buttons on the display. 
     But existing methods and devices for controlling media presentation are cumbersome and inefficient. For example, the inputs required to adjust playback speed may not be clear and intuitive to a user. 
     SUMMARY 
     Accordingly, there is a need for electronic devices with faster, more efficient methods and interfaces for controlling media presentation (e.g., controlling the rewind, fast forward, and/or playback speeds of various media). Such methods and interfaces optionally complement or replace conventional methods for controlling media presentation. Such methods and interfaces reduce the number, extent, and/or nature of the inputs from a user and produce a more efficient human-machine interface. For battery-operated devices, such methods and interfaces conserve power and increase the time between battery charges. 
     The above deficiencies and other problems associated with user interfaces for electronic devices with touch-sensitive surfaces are reduced or eliminated by the disclosed devices. In some embodiments, the device is a desktop computer. In some embodiments, the device is portable (e.g., a notebook computer, tablet computer, or handheld device). In some embodiments, the device is a personal electronic device (e.g., a wearable electronic device, such as a watch). In some embodiments, the device has a touchpad. In some embodiments, the device has a touch-sensitive display (also known as a “touch screen” or “touch-screen display”). In some embodiments, the device has a graphical user interface (GUI), one or more processors, memory and one or more modules, programs or sets of instructions stored in the memory for performing multiple functions. In some embodiments, the user interacts with the GUI primarily through stylus and/or finger contacts and gestures on the touch-sensitive surface. In some embodiments, the functions optionally include image editing, drawing, presenting, word processing, spreadsheet making, game playing, telephoning, video conferencing, e-mailing, instant messaging, workout support, digital photographing, digital videoing, web browsing, digital music playing, note taking, and/or digital video playing. Executable instructions for performing these functions are, optionally, included in a non-transitory computer readable storage medium or other computer program product configured for execution by one or more processors. 
     In accordance with some embodiments, a method is performed at an electronic device with a display, a touch-sensitive surface, and one or more sensors to detect intensity of contacts with the touch-sensitive surface. The method includes: while presenting media content at a first non-zero playback speed, detecting a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display; and, in response to detecting the press input: determining whether an intensity of the first contact is above a first intensity threshold; in accordance with a determination that the intensity of the first contact is above the first intensity threshold, presenting the media content at a second playback speed, wherein the second playback speed is faster than the first non-zero playback speed; and, in accordance with a determination that the intensity of the first contact is below the first intensity threshold, maintaining presentation of the media content at the first non-zero playback speed. 
     In accordance with some embodiments, a method is performed at an electronic device with a display, a touch-sensitive surface, and one or more sensors to detect intensity of contacts with the touch-sensitive surface. The method includes: while presenting media content at a first speed, detecting a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display; and, in response to detecting the press input by the first contact: determining whether a first intensity of the first contact has satisfied a first intensity threshold; subsequent to determining whether the first intensity of the first contact has satisfied the first intensity threshold, determining whether the first contact continues to satisfy a second intensity threshold during a predefined time interval; in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, presenting the media content at a first fast-forward speed that is higher than the first speed as long as the first contact satisfies the second intensity threshold; and, in accordance with determining that the intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval, presenting the media content at the first fast-forward speed. 
     In accordance with some embodiments, an electronic device includes a display unit configured to display a user interface, a touch-sensitive surface unit to receive contacts, one or more sensor units to detect intensity of contacts with the touch-sensitive surface unit; and a processing unit coupled with the display unit, the touch-sensitive surface unit, and the one or more sensor units. The processing unit is configured to: while presenting media content at a first non-zero playback speed, detecting a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display; and, in response to detecting the press input: determining whether an intensity of the first contact is above a first intensity threshold; in accordance with a determination that the intensity of the first contact is above the first intensity threshold, presenting the media content at a second playback speed, wherein the second playback speed is faster than the first non-zero playback speed; and, in accordance with a determination that the intensity of the first contact is below the first intensity threshold, maintaining presentation of the media content at the first non-zero playback speed. 
     In accordance with some embodiments, an electronic device includes a display unit configured to display a user interface, a touch-sensitive surface unit to receive contacts, one or more sensor units to detect intensity of contacts with the touch-sensitive surface unit; and a processing unit coupled with the display unit, the touch-sensitive surface unit, and the one or more sensor units. The processing unit is configured to: while presenting media content at a first non-zero playback speed, detect a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display; and, in response to detecting the press input: determine whether an intensity of the first contact is above a first intensity threshold; in accordance with a determination that the intensity of the first contact is above the first intensity threshold, present the media content at a second playback speed, wherein the second playback speed is faster than the first non-zero playback speed; and, in accordance with a determination that the intensity of the first contact is below the first intensity threshold, maintain presentation of the media content at the first non-zero playback speed. 
     In accordance with some embodiments, an electronic device includes a display, a touch-sensitive surface, optionally one or more sensors to detect intensity of contacts with the touch-sensitive surface, one or more processors, memory, and one or more programs; the one or more programs are stored in the memory and configured to be executed by the one or more processors and the one or more programs include instructions for performing or causing performance of the operations of any of the methods described herein. In accordance with some embodiments, a computer readable storage medium has stored therein instructions which when executed by an electronic device with a display, a touch-sensitive surface, and optionally one or more sensors to detect intensity of contacts with the touch-sensitive surface, cause the device to perform or cause performance of the operations of any of the methods described herein. In accordance with some embodiments, a graphical user interface on an electronic device with a display, a touch-sensitive surface, optionally one or more sensors to detect intensity of contacts with the touch-sensitive surface, a memory, and one or more processors to execute one or more programs stored in the memory includes one or more of the elements displayed in any of the methods described above, which are updated in response to inputs, as described in any of the methods described herein. In accordance with some embodiments, an electronic device includes: a display, a touch-sensitive surface, and optionally one or more sensors to detect intensity of contacts with the touch-sensitive surface; and means for performing or causing performance of the operations of any of the methods described herein. In accordance with some embodiments, an information processing apparatus, for use in an electronic device with a display and a touch-sensitive surface, and optionally one or more sensors to detect intensity of contacts with the touch-sensitive surface, includes means for performing or causing performance of the operations of any of the methods described herein. 
     Thus, electronic devices with displays, touch-sensitive surfaces and one or more sensors to detect intensity of contacts with the touch-sensitive surface are provided with faster, more efficient methods and interfaces for controlling media presentation (e.g., for controlling the rewind, fast forward, and/or playback speeds), thereby increasing the effectiveness, efficiency, and user satisfaction with such devices. Such methods and interfaces may complement or replace conventional methods for controlling media presentation. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       For a better understanding of the various described embodiments, reference should be made to the Description of Embodiments below, in conjunction with the following drawings in which like reference numerals refer to corresponding parts throughout the figures. 
         FIG. 1A  is a block diagram illustrating a portable multifunction device with a touch-sensitive display in accordance with some embodiments. 
         FIG. 1B  is a block diagram illustrating exemplary components for event handling in accordance with some embodiments. 
         FIG. 2  illustrates a portable multifunction device having a touch screen in accordance with some embodiments. 
         FIG. 3  is a block diagram of an exemplary multifunction device with a display and a touch-sensitive surface in accordance with some embodiments. 
         FIG. 4A  illustrates an exemplary user interface for a menu of applications on a portable multifunction device in accordance with some embodiments. 
         FIG. 4B  illustrates an exemplary user interface for a multifunction device with a touch-sensitive surface that is separate from the display in accordance with some embodiments. 
         FIGS. 4C-4E  illustrate exemplary dynamic intensity thresholds in accordance with some embodiments. 
         FIGS. 5A-5F  illustrate exemplary user interfaces for controlling media presentation in accordance with some embodiments. 
         FIGS. 6A-6K  illustrate exemplary control heuristics for controlling media presentation in accordance with some embodiments. 
         FIGS. 7A-7H  are flow diagrams illustrating a method of controlling media presentation in accordance with some embodiments. 
         FIGS. 8A-8C  are flow diagrams illustrating a method of controlling media presentation in accordance with some embodiments. 
         FIGS. 9 and 10  are functional block diagrams of an electronic device in accordance with some embodiments. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Many electronic devices provide a media playback function for presenting media content (e.g., music, video, a collection of images in a slideshow, etc.). A software application that provides the media playback function typically provides respective graphical user interface controls for controlling various aspects of media presentation (e.g., for starting, pausing, stopping, fast forwarding, and/or rewinding the media content). Sometimes, the user may wish to start playing the media content at a speed higher than the normal playback speed (e.g., scanning the media content at 2×, 5×, 10×). Sometimes, while playing the media content at a normal playback speed (e.g., 1×), the user may wish to increase the playback speed to multiple times of the normal playback speed (e.g., scanning at 2×, 5×, 10×, 30×, etc.). Sometimes, while the media content is being scanned at a first speed (e.g., 2×), the user may wish to change that speed to a higher speed (e.g., 5×, 10×, 30×, etc.). Sometimes, the user may wish to increase the speed for just a brief time; while at other times, the user may wish to maintain the higher playback speed once it has been achieved. 
     Here improved methods are described for controlling media presentation based on an intensity of a press input or a profile of the intensity of the press input on a touch-sensitive surface of the electronic device. Depending on a current playback speed of the media presentation and a relative intensity of a press input to one or more predetermined activation intensity thresholds associated with different playback speeds, the playback speed of the media presentation may be altered. For example, the playback speed may increase or decrease in response to changes in contact intensity of the press input detected on a corresponding user interface control (e.g., a fast forward control or a rewind control). These methods provide more convenient and intuitive ways to control media presentation, thereby reducing the cognitive burden on a user and increasing the effectiveness, efficiency, and user satisfaction with such devices. 
     Below,  FIGS. 1A-1B, 2, and 3  provide a description of exemplary devices.  FIGS. 4A-4B and 5A-5F  illustrate exemplary user interfaces for controlling media presentation.  FIGS. 6A-6K  illustrate exemplary control heuristics for controlling media presentation.  FIGS. 7A-7H and 8A-8C  are flow diagrams of methods of controlling media presentation. The user interfaces in  FIGS. 5A-5F  and the control heuristics in  FIGS. 6A-6K  are used to illustrate the processes in  FIGS. 7A-7H and 8A-8C . 
     Exemplary Devices 
     Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the various described embodiments. However, it will be apparent to one of ordinary skill in the art that the various described embodiments may be practiced without these specific details. In other instances, well-known methods, procedures, components, circuits, and networks have not been described in detail so as not to unnecessarily obscure aspects of the embodiments. 
     It will also be understood that, although the terms first, second, etc. are, in some instances, used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first contact could be termed a second contact, and, similarly, a second contact could be termed a first contact, without departing from the scope of the various described embodiments. The first contact and the second contact are both contacts, but they are not the same contact, unless the context clearly indicates otherwise. 
     The terminology used in the description of the various described embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various described embodiments and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term “and/or” as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms “includes,” “including,” “comprises,” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. 
     As used herein, the term “if” is, optionally, construed to mean “when” or “upon” or “in response to determining” or “in response to detecting,” depending on the context. Similarly, the phrase “if it is determined” or “if [a stated condition or event] is detected” is, optionally, construed to mean “upon determining” or “in response to determining” or “upon detecting [the stated condition or event]” or “in response to detecting [the stated condition or event],” depending on the context. 
     Embodiments of electronic devices, user interfaces for such devices, and associated processes for using such devices are described. In some embodiments, the device is a portable communications device, such as a mobile telephone, that also contains other functions, such as PDA and/or music player functions. Exemplary embodiments of portable multifunction devices include, without limitation, the iPhone®, iPod Touch®, and iPad® devices from Apple Inc. of Cupertino, California. Other portable electronic devices, such as laptops or tablet computers with touch-sensitive surfaces (e.g., touch-screen displays and/or touchpads), are, optionally, used. It should also be understood that, in some embodiments, the device is not a portable communications device, but is a desktop computer with a touch-sensitive surface (e.g., a touch-screen display and/or a touchpad). 
     In the discussion that follows, an electronic device that includes a display and a touch-sensitive surface is described. It should be understood, however, that the electronic device optionally includes one or more other physical user-interface devices, such as a physical keyboard, a mouse and/or a joystick. 
     The device typically supports a variety of applications, such as one or more of the following: a note taking application, a drawing application, a presentation application, a word processing application, a website creation application, a disk authoring application, a spreadsheet application, a gaming application, a telephone application, a video conferencing application, an e-mail application, an instant messaging application, a workout support application, a photo management application, a digital camera application, a digital video camera application, a web browsing application, a digital music player application, and/or a digital video player application. 
     The various applications that are executed on the device optionally use at least one common physical user-interface device, such as the touch-sensitive surface. One or more functions of the touch-sensitive surface as well as corresponding information displayed on the device are, optionally, adjusted and/or varied from one application to the next and/or within a respective application. In this way, a common physical architecture (such as the touch-sensitive surface) of the device optionally supports the variety of applications with user interfaces that are intuitive and transparent to the user. 
     Attention is now directed toward embodiments of portable devices with touch-sensitive displays.  FIG. 1A  is a block diagram illustrating portable multifunction device  100  with touch-sensitive display system  112  in accordance with some embodiments. Touch-sensitive display system  112  is sometimes called a “touch screen” for convenience, and is sometimes simply called a touch-sensitive display. Device  100  includes memory  102  (which optionally includes one or more computer readable storage mediums), memory controller  122 , one or more processing units (CPUs)  120 , peripherals interface  118 , RF circuitry  108 , audio circuitry  110 , speaker  111 , microphone  113 , input/output (I/O) subsystem  106 , other input or control devices  116 , and external port  124 . Device  100  optionally includes one or more optical sensors  164 . Device  100  optionally includes one or more intensity sensors  165  for detecting intensity of contacts on device  100  (e.g., a touch-sensitive surface such as touch-sensitive display system  112  of device  100 ). Device  100  optionally includes one or more tactile output generators  167  for generating tactile outputs on device  100  (e.g., generating tactile outputs on a touch-sensitive surface such as touch-sensitive display system  112  of device  100  or touchpad  355  of device  300 ). These components optionally communicate over one or more communication buses or signal lines  103 . 
     As used in the specification and claims, the term “tactile output” refers to physical displacement of a device relative to a previous position of the device, physical displacement of a component (e.g., a touch-sensitive surface) of a device relative to another component (e.g., housing) of the device, or displacement of the component relative to a center of mass of the device that will be detected by a user with the user&#39;s sense of touch. For example, in situations where the device or the component of the device is in contact with a surface of a user that is sensitive to touch (e.g., a finger, palm, or other part of a user&#39;s hand), the tactile output generated by the physical displacement will be interpreted by the user as a tactile sensation corresponding to a perceived change in physical characteristics of the device or the component of the device. For example, movement of a touch-sensitive surface (e.g., a touch-sensitive display or trackpad) is, optionally, interpreted by the user as a “down click” or “up click” of a physical actuator button. In some cases, a user will feel a tactile sensation such as an “down click” or “up click” even when there is no movement of a physical actuator button associated with the touch-sensitive surface that is physically pressed (e.g., displaced) by the user&#39;s movements. As another example, movement of the touch-sensitive surface is, optionally, interpreted or sensed by the user as “roughness” of the touch-sensitive surface, even when there is no change in smoothness of the touch-sensitive surface. While such interpretations of touch by a user will be subject to the individualized sensory perceptions of the user, there are many sensory perceptions of touch that are common to a large majority of users. Thus, when a tactile output is described as corresponding to a particular sensory perception of a user (e.g., an “up click,” a “down click,” “roughness”), unless otherwise stated, the generated tactile output corresponds to physical displacement of the device or a component thereof that will generate the described sensory perception for a typical (or average) user. 
     It should be appreciated that device  100  is only one example of a portable multifunction device, and that device  100  optionally has more or fewer components than shown, optionally combines two or more components, or optionally has a different configuration or arrangement of the components. The various components shown in  FIG. 1A  are implemented in hardware, software, firmware, or a combination thereof, including one or more signal processing and/or application specific integrated circuits. 
     Memory  102  optionally includes high-speed random access memory and optionally also includes non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Access to memory  102  by other components of device  100 , such as CPU(s)  120  and the peripherals interface  118 , is, optionally, controlled by memory controller  122 . 
     Peripherals interface  118  can be used to couple input and output peripherals of the device to CPU(s)  120  and memory  102 . The one or more processors  120  run or execute various software programs and/or sets of instructions stored in memory  102  to perform various functions for device  100  and to process data. 
     In some embodiments, peripherals interface  118 , CPU(s)  120 , and memory controller  122  are, optionally, implemented on a single chip, such as chip  104 . In some other embodiments, they are, optionally, implemented on separate chips. 
     RF (radio frequency) circuitry  108  receives and sends RF signals, also called electromagnetic signals. RF circuitry  108  converts electrical signals to/from electromagnetic signals and communicates with communications networks and other communications devices via the electromagnetic signals. RF circuitry  108  optionally includes well-known circuitry for performing these functions, including but not limited to an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC chipset, a subscriber identity module (SIM) card, memory, and so forth. RF circuitry  108  optionally communicates with networks, such as the Internet, also referred to as the World Wide Web (WWW), an intranet and/or a wireless network, such as a cellular telephone network, a wireless local area network (LAN) and/or a metropolitan area network (MAN), and other devices by wireless communication. The wireless communication optionally uses any of a plurality of communications standards, protocols and technologies, including but not limited to Global System for Mobile Communications (GSM), Enhanced Data GSM Environment (EDGE), high-speed downlink packet access (HSDPA), high-speed uplink packet access (HSDPA), Evolution, Data-Only (EV-DO), HSPA, HSPA+, Dual-Cell HSPA (DC-HSPDA), long term evolution (LTE), near field communication (NFC), wideband code division multiple access (W-CDMA), code division multiple access (CDMA), time division multiple access (TDMA), Bluetooth, Wireless Fidelity (Wi-Fi) (e.g., IEEE 802.11a, IEEE 802.11ac, IEEE 802.11ax, IEEE 802.11b, IEEE 802.11g and/or IEEE 802.11n), voice over Internet Protocol (VoIP), Wi-MAX, a protocol for e-mail (e.g., Internet message access protocol (IMAP) and/or post office protocol (POP)), instant messaging (e.g., extensible messaging and presence protocol (XMPP), Session Initiation Protocol for Instant Messaging and Presence Leveraging Extensions (SIMPLE), Instant Messaging and Presence Service (IMPS)), and/or Short Message Service (SMS), or any other suitable communication protocol, including communication protocols not yet developed as of the filing date of this document. 
     Audio circuitry  110 , speaker  111 , and microphone  113  provide an audio interface between a user and device  100 . Audio circuitry  110  receives audio data from peripherals interface  118 , converts the audio data to an electrical signal, and transmits the electrical signal to speaker  111 . Speaker  111  converts the electrical signal to human-audible sound waves. Audio circuitry  110  also receives electrical signals converted by microphone  113  from sound waves. Audio circuitry  110  converts the electrical signal to audio data and transmits the audio data to peripherals interface  118  for processing. Audio data is, optionally, retrieved from and/or transmitted to memory  102  and/or RF circuitry  108  by peripherals interface  118 . In some embodiments, audio circuitry  110  also includes a headset jack (e.g.,  212 ,  FIG. 2 ). The headset jack provides an interface between audio circuitry  110  and removable audio input/output peripherals, such as output-only headphones or a headset with both output (e.g., a headphone for one or both ears) and input (e.g., a microphone). 
     I/O subsystem  106  couples input/output peripherals on device  100 , such as touch-sensitive display system  112  and other input or control devices  116 , with peripherals interface  118 . I/O subsystem  106  optionally includes display controller  156 , optical sensor controller  158 , intensity sensor controller  159 , haptic feedback controller  161 , and one or more input controllers  160  for other input or control devices. The one or more input controllers  160  receive/send electrical signals from/to other input or control devices  116 . The other input or control devices  116  optionally include physical buttons (e.g., push buttons, rocker buttons, etc.), dials, slider switches, joysticks, click wheels, and so forth. In some alternate embodiments, input controller(s)  160  are, optionally, coupled with any (or none) of the following: a keyboard, infrared port, USB port, stylus, and/or a pointer device such as a mouse. The one or more buttons (e.g.,  208 ,  FIG. 2 ) optionally include an up/down button for volume control of speaker  111  and/or microphone  113 . The one or more buttons optionally include a push button (e.g.,  206 ,  FIG. 2 ). 
     Touch-sensitive display system  112  provides an input interface and an output interface between the device and a user. Display controller  156  receives and/or sends electrical signals from/to touch-sensitive display system  112 . Touch-sensitive display system  112  displays visual output to the user. The visual output optionally includes graphics, text, icons, video, and any combination thereof (collectively termed “graphics”). In some embodiments, some or all of the visual output corresponds to user-interface objects. 
     Touch-sensitive display system  112  has a touch-sensitive surface, sensor or set of sensors that accepts input from the user based on haptic and/or tactile contact. Touch-sensitive display system  112  and display controller  156  (along with any associated modules and/or sets of instructions in memory  102 ) detect contact (and any movement or breaking of the contact) on touch-sensitive display system  112  and converts the detected contact into interaction with user-interface objects (e.g., one or more soft keys, icons, web pages or images) that are displayed on touch-sensitive display system  112 . In an exemplary embodiment, a point of contact between touch-sensitive display system  112  and the user corresponds to a finger of the user or a stylus. 
     Touch-sensitive display system  112  optionally uses LCD (liquid crystal display) technology, LPD (light emitting polymer display) technology, or LED (light emitting diode) technology, although other display technologies are used in other embodiments. Touch-sensitive display system  112  and display controller  156  optionally detect contact and any movement or breaking thereof using any of a plurality of touch sensing technologies now known or later developed, including but not limited to capacitive, resistive, infrared, and surface acoustic wave technologies, as well as other proximity sensor arrays or other elements for determining one or more points of contact with touch-sensitive display system  112 . In an exemplary embodiment, projected mutual capacitance sensing technology is used, such as that found in the iPhone®, iPod Touch®, and iPad® from Apple Inc. of Cupertino, Calif. 
     Touch-sensitive display system  112  optionally has a video resolution in excess of 100 dpi. In some embodiments, the touch screen video resolution is in excess of 400 dpi (e.g., 500 dpi, 800 dpi, or greater). The user optionally makes contact with touch-sensitive display system  112  using any suitable object or appendage, such as a stylus, a finger, and so forth. In some embodiments, the user interface is designed to work with finger-based contacts and gestures, which can be less precise than stylus-based input due to the larger area of contact of a finger on the touch screen. In some embodiments, the device translates the rough finger-based input into a precise pointer/cursor position or command for performing the actions desired by the user. 
     In some embodiments, in addition to the touch screen, device  100  optionally includes a touchpad (not shown) for activating or deactivating particular functions. In some embodiments, the touchpad is a touch-sensitive area of the device that, unlike the touch screen, does not display visual output. The touchpad is, optionally, a touch-sensitive surface that is separate from touch-sensitive display system  112  or an extension of the touch-sensitive surface formed by the touch screen. 
     Device  100  also includes power system  162  for powering the various components. Power system  162  optionally includes a power management system, one or more power sources (e.g., battery, alternating current (AC)), a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator (e.g., a light-emitting diode (LED)) and any other components associated with the generation, management and distribution of power in portable devices. 
     Device  100  optionally also includes one or more optical sensors  164 .  FIG. 1A  shows an optical sensor coupled with optical sensor controller  158  in I/O subsystem  106 . Optical sensor(s)  164  optionally include charge-coupled device (CCD) or complementary metal-oxide semiconductor (CMOS) phototransistors. Optical sensor(s)  164  receive light from the environment, projected through one or more lens, and converts the light to data representing an image. In conjunction with imaging module  143  (also called a camera module), optical sensor(s)  164  optionally capture still images and/or video. In some embodiments, an optical sensor is located on the back of device  100 , opposite touch-sensitive display system  112  on the front of the device, so that the touch screen is enabled for use as a viewfinder for still and/or video image acquisition. In some embodiments, another optical sensor is located on the front of the device so that the user&#39;s image is obtained (e.g., for selfies, for videoconferencing while the user views the other video conference participants on the touch screen, etc.). 
     Device  100  optionally also includes one or more contact intensity sensors  165 .  FIG. 1A  shows a contact intensity sensor coupled with intensity sensor controller  159  in I/O subsystem  106 . Contact intensity sensor(s)  165  optionally include one or more piezoresistive strain gauges, capacitive force sensors, electric force sensors, piezoelectric force sensors, optical force sensors, capacitive touch-sensitive surfaces, or other intensity sensors (e.g., sensors used to measure the force (or pressure) of a contact on a touch-sensitive surface). Contact intensity sensor(s)  165  receive contact intensity information (e.g., pressure information or a proxy for pressure information) from the environment. In some embodiments, at least one contact intensity sensor is collocated with, or proximate to, a touch-sensitive surface (e.g., touch-sensitive display system  112 ). In some embodiments, at least one contact intensity sensor is located on the back of device  100 , opposite touch-screen display system  112  which is located on the front of device  100 . 
     Device  100  optionally also includes one or more proximity sensors  166 .  FIG. 1A  shows proximity sensor  166  coupled with peripherals interface  118 . Alternately, proximity sensor  166  is coupled with input controller  160  in I/O subsystem  106 . In some embodiments, the proximity sensor turns off and disables touch-sensitive display system  112  when the multifunction device is placed near the user&#39;s ear (e.g., when the user is making a phone call). 
     Device  100  optionally also includes one or more tactile output generators  167 .  FIG. 1A  shows a tactile output generator coupled with haptic feedback controller  161  in I/O subsystem  106 . Tactile output generator(s)  167  optionally include one or more electroacoustic devices such as speakers or other audio components and/or electromechanical devices that convert energy into linear motion such as a motor, solenoid, electroactive polymer, piezoelectric actuator, electrostatic actuator, or other tactile output generating component (e.g., a component that converts electrical signals into tactile outputs on the device). Tactile output generator(s)  167  receive tactile feedback generation instructions from haptic feedback module  133  and generates tactile outputs on device  100  that are capable of being sensed by a user of device  100 . In some embodiments, at least one tactile output generator is collocated with, or proximate to, a touch-sensitive surface (e.g., touch-sensitive display system  112 ) and, optionally, generates a tactile output by moving the touch-sensitive surface vertically (e.g., in/out of a surface of device  100 ) or laterally (e.g., back and forth in the same plane as a surface of device  100 ). In some embodiments, at least one tactile output generator sensor is located on the back of device  100 , opposite touch-sensitive display system  112 , which is located on the front of device  100 . 
     Device  100  optionally also includes one or more accelerometers  168 .  FIG. 1A  shows accelerometer  168  coupled with peripherals interface  118 . Alternately, accelerometer  168  is, optionally, coupled with an input controller  160  in I/O subsystem  106 . In some embodiments, information is displayed on the touch-screen display in a portrait view or a landscape view based on an analysis of data received from the one or more accelerometers. Device  100  optionally includes, in addition to accelerometer(s)  168 , a magnetometer (not shown) and a GPS (or GLONASS or other global navigation system) receiver (not shown) for obtaining information concerning the location and orientation (e.g., portrait or landscape) of device  100 . 
     In some embodiments, the software components stored in memory  102  include operating system  126 , communication module (or set of instructions)  128 , contact/motion module (or set of instructions)  130 , graphics module (or set of instructions)  132 , haptic feedback module (or set of instructions)  133 , text input module (or set of instructions)  134 , Global Positioning System (GPS) module (or set of instructions)  135 , and applications (or sets of instructions)  136 . Furthermore, in some embodiments, memory  102  stores device/global internal state  157 , as shown in  FIGS. 1A and 3 . Device/global internal state  157  includes one or more of: active application state, indicating which applications, if any, are currently active; display state, indicating what applications, views or other information occupy various regions of touch-sensitive display system  112 ; sensor state, including information obtained from the device&#39;s various sensors and other input or control devices  116 ; and location and/or positional information concerning the device&#39;s location and/or attitude. 
     Operating system  126  (e.g., iOS, Darwin, RTXC, LINUX, UNIX, OS X, WINDOWS, or an embedded operating system such as VxWorks) includes various software components and/or drivers for controlling and managing general system tasks (e.g., memory management, storage device control, power management, etc.) and facilitates communication between various hardware and software components. 
     Communication module  128  facilitates communication with other devices over one or more external ports  124  and also includes various software components for handling data received by RF circuitry  108  and/or external port  124 . External port  124  (e.g., Universal Serial Bus (USB), FIREWIRE, etc.) is adapted for coupling directly to other devices or indirectly over a network (e.g., the Internet, wireless LAN, etc.). In some embodiments, the external port is a multi-pin (e.g., 30-pin) connector that is the same as, or similar to and/or compatible with the 30-pin connector used in some iPhone®, iPod Touch®, and iPad® devices from Apple Inc. of Cupertino, Calif. In some embodiments, the external port is a Lightning connector that is the same as, or similar to and/or compatible with the Lightning connector used in some iPhone®, iPod Touch®, and iPad® devices from Apple Inc. of Cupertino, Calif. 
     Contact/motion module  130  optionally detects contact with touch-sensitive display system  112  (in conjunction with display controller  156 ) and other touch-sensitive devices (e.g., a touchpad or physical click wheel). Contact/motion module  130  includes various software components for performing various operations related to detection of contact (e.g., by a finger or by a stylus), such as determining if contact has occurred (e.g., detecting a finger-down event), determining an intensity of the contact (e.g., the force or pressure of the contact or a substitute for the force or pressure of the contact), determining if there is movement of the contact and tracking the movement across the touch-sensitive surface (e.g., detecting one or more finger-dragging events), and determining if the contact has ceased (e.g., detecting a finger-up event or a break in contact). Contact/motion module  130  receives contact data from the touch-sensitive surface. Determining movement of the point of contact, which is represented by a series of contact data, optionally includes determining speed (magnitude), velocity (magnitude and direction), and/or an acceleration (a change in magnitude and/or direction) of the point of contact. These operations are, optionally, applied to single contacts (e.g., one finger contacts or stylus contacts) or to multiple simultaneous contacts (e.g., “multitouch”/multiple finger contacts). In some embodiments, contact/motion module  130  and display controller  156  detect contact on a touchpad. 
     Contact/motion module  130  optionally detects a gesture input by a user. Different gestures on the touch-sensitive surface have different contact patterns (e.g., different motions, timings, and/or intensities of detected contacts). Thus, a gesture is, optionally, detected by detecting a particular contact pattern. For example, detecting a finger tap gesture includes detecting a finger-down event followed by detecting a finger-up (lift off) event at the same position (or substantially the same position) as the finger-down event (e.g., at the position of an icon). As another example, detecting a finger swipe gesture on the touch-sensitive surface includes detecting a finger-down event followed by detecting one or more finger-dragging events, and subsequently followed by detecting a finger-up (lift off) event. Similarly, tap, swipe, drag, and other gestures are optionally detected for a stylus by detecting a particular contact pattern for the stylus. 
     Graphics module  132  includes various known software components for rendering and displaying graphics on touch-sensitive display system  112  or other display, including components for changing the visual impact (e.g., brightness, transparency, saturation, contrast or other visual property) of graphics that are displayed. As used herein, the term “graphics” includes any object that can be displayed to a user, including without limitation text, web pages, icons (such as user-interface objects including soft keys), digital images, videos, animations and the like. 
     In some embodiments, graphics module  132  stores data representing graphics to be used. Each graphic is, optionally, assigned a corresponding code. Graphics module  132  receives, from applications etc., one or more codes specifying graphics to be displayed along with, if necessary, coordinate data and other graphic property data, and then generates screen image data to output to display controller  156 . 
     Haptic feedback module  133  includes various software components for generating instructions used by tactile output generator(s)  167  to produce tactile outputs at one or more locations on device  100  in response to user interactions with device  100 . 
     Text input module  134 , which is, optionally, a component of graphics module  132 , provides soft keyboards for entering text in various applications (e.g., contacts  137 , e-mail  140 , IM  141 , browser  147 , and any other application that needs text input). 
     GPS module  135  determines the location of the device and provides this information for use in various applications (e.g., to telephone  138  for use in location-based dialing, to camera  143  as picture/video metadata, and to applications that provide location-based services such as weather widgets, local yellow page widgets, and map/navigation widgets). 
     Applications  136  optionally include the following modules (or sets of instructions), or a subset or superset thereof:
         contacts module  137  (sometimes called an address book or contact list);   telephone module  138 ;   video conferencing module  139 ;   e-mail client module  140 ;   instant messaging (IM) module  141 ;   workout support module  142 ;   camera module  143  for still and/or video images;   image management module  144 ;   browser module  147 ;   calendar module  148 ;   widget modules  149 , which optionally include one or more of: weather widget  149 - 1 , stocks widget  149 - 2 , calculator widget  149 - 3 , alarm clock widget  149 - 4 , dictionary widget  149 - 5 , and other widgets obtained by the user, as well as user-created widgets  149 - 6 ;   widget creator module  150  for making user-created widgets  149 - 6 ;   search module  151 ;   video and music player module  152 , which is, optionally, made up of a video player module and a music player module;   notes module  153 ;   map module  154 ; and/or   online video module  155 .       

     Examples of other applications  136  that are, optionally, stored in memory  102  include other word processing applications, other image editing applications, drawing applications, presentation applications, JAVA-enabled applications, encryption, digital rights management, voice recognition, and voice replication. 
     In conjunction with touch-sensitive display system  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , contacts module  137  includes executable instructions to manage an address book or contact list (e.g., stored in application internal state  192  of contacts module  137  in memory  102  or memory  370 ), including: adding name(s) to the address book; deleting name(s) from the address book; associating telephone number(s), e-mail address(es), physical address(es) or other information with a name; associating an image with a name; categorizing and sorting names; providing telephone numbers and/or e-mail addresses to initiate and/or facilitate communications by telephone  138 , video conference  139 , e-mail  140 , or IM  141 ; and so forth. 
     In conjunction with RF circuitry  108 , audio circuitry  110 , speaker  111 , microphone  113 , touch-sensitive display system  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , telephone module  138  includes executable instructions to enter a sequence of characters corresponding to a telephone number, access one or more telephone numbers in address book  137 , modify a telephone number that has been entered, dial a respective telephone number, conduct a conversation and disconnect or hang up when the conversation is completed. As noted above, the wireless communication optionally uses any of a plurality of communications standards, protocols and technologies. 
     In conjunction with RF circuitry  108 , audio circuitry  110 , speaker  111 , microphone  113 , touch-sensitive display system  112 , display controller  156 , optical sensor(s)  164 , optical sensor controller  158 , contact module  130 , graphics module  132 , text input module  134 , contact list  137 , and telephone module  138 , videoconferencing module  139  includes executable instructions to initiate, conduct, and terminate a video conference between a user and one or more other participants in accordance with user instructions. 
     In conjunction with RF circuitry  108 , touch-sensitive display system  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , e-mail client module  140  includes executable instructions to create, send, receive, and manage e-mail in response to user instructions. In conjunction with image management module  144 , e-mail client module  140  makes it very easy to create and send e-mails with still or video images taken with camera module  143 . 
     In conjunction with RF circuitry  108 , touch-sensitive display system  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , the instant messaging module  141  includes executable instructions to enter a sequence of characters corresponding to an instant message, to modify previously entered characters, to transmit a respective instant message (for example, using a Short Message Service (SMS) or Multimedia Message Service (MMS) protocol for telephony-based instant messages or using XMPP, SIMPLE, Apple Push Notification Service (APNs) or IMPS for Internet-based instant messages), to receive instant messages and to view received instant messages. In some embodiments, transmitted and/or received instant messages optionally include graphics, photos, audio files, video files and/or other attachments as are supported in a MMS and/or an Enhanced Messaging Service (EMS). As used herein, “instant messaging” refers to both telephony-based messages (e.g., messages sent using SMS or MMS) and Internet-based messages (e.g., messages sent using XMPP, SIMPLE, APNs, or IMPS). 
     In conjunction with RF circuitry  108 , touch-sensitive display system  112 , display controller  156 , contact module  130 , graphics module  132 , text input module  134 , GPS module  135 , map module  154 , and music player module  146 , workout support module  142  includes executable instructions to create workouts (e.g., with time, distance, and/or calorie burning goals); communicate with workout sensors (in sports devices and smart watches); receive workout sensor data; calibrate sensors used to monitor a workout; select and play music for a workout; and display, store and transmit workout data. 
     In conjunction with touch-sensitive display system  112 , display controller  156 , optical sensor(s)  164 , optical sensor controller  158 , contact module  130 , graphics module  132 , and image management module  144 , camera module  143  includes executable instructions to capture still images or video (including a video stream) and store them into memory  102 , modify characteristics of a still image or video, and/or delete a still image or video from memory  102 . 
     In conjunction with touch-sensitive display system  112 , display controller  156 , contact module  130 , graphics module  132 , text input module  134 , and camera module  143 , image management module  144  includes executable instructions to arrange, modify (e.g., edit), or otherwise manipulate, label, delete, present (e.g., in a digital slide show or album), and store still and/or video images. 
     In conjunction with RF circuitry  108 , touch-sensitive display system  112 , display system controller  156 , contact module  130 , graphics module  132 , and text input module  134 , browser module  147  includes executable instructions to browse the Internet in accordance with user instructions, including searching, linking to, receiving, and displaying web pages or portions thereof, as well as attachments and other files linked to web pages. 
     In conjunction with RF circuitry  108 , touch-sensitive display system  112 , display system controller  156 , contact module  130 , graphics module  132 , text input module  134 , e-mail client module  140 , and browser module  147 , calendar module  148  includes executable instructions to create, display, modify, and store calendars and data associated with calendars (e.g., calendar entries, to do lists, etc.) in accordance with user instructions. 
     In conjunction with RF circuitry  108 , touch-sensitive display system  112 , display system controller  156 , contact module  130 , graphics module  132 , text input module  134 , and browser module  147 , widget modules  149  are mini-applications that are, optionally, downloaded and used by a user (e.g., weather widget  149 - 1 , stocks widget  149 - 2 , calculator widget  149 - 3 , alarm clock widget  149 - 4 , and dictionary widget  149 - 5 ) or created by the user (e.g., user-created widget  149 - 6 ). In some embodiments, a widget includes an HTML (Hypertext Markup Language) file, a CSS (Cascading Style Sheets) file, and a JavaScript file. In some embodiments, a widget includes an XML (Extensible Markup Language) file and a JavaScript file (e.g., Yahoo! Widgets). 
     In conjunction with RF circuitry  108 , touch-sensitive display system  112 , display system controller  156 , contact module  130 , graphics module  132 , text input module  134 , and browser module  147 , the widget creator module  150  includes executable instructions to create widgets (e.g., turning a user-specified portion of a web page into a widget). 
     In conjunction with touch-sensitive display system  112 , display system controller  156 , contact module  130 , graphics module  132 , and text input module  134 , search module  151  includes executable instructions to search for text, music, sound, image, video, and/or other files in memory  102  that match one or more search criteria (e.g., one or more user-specified search terms) in accordance with user instructions. 
     In conjunction with touch-sensitive display system  112 , display system controller  156 , contact module  130 , graphics module  132 , audio circuitry  110 , speaker  111 , RF circuitry  108 , and browser module  147 , video and music player module  152  includes executable instructions that allow the user to download and play back recorded music and other sound files stored in one or more file formats, such as MP3 or AAC files, and executable instructions to display, present or otherwise play back videos (e.g., on touch-sensitive display system  112 , or on an external display connected wirelessly or via external port  124 ). In some embodiments, device  100  optionally includes the functionality of an MP 3  player, such as an iPod (trademark of Apple Inc.). 
     In conjunction with touch-sensitive display system  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , notes module  153  includes executable instructions to create and manage notes, to do lists, and the like in accordance with user instructions. 
     In conjunction with RF circuitry  108 , touch-sensitive display system  112 , display system controller  156 , contact module  130 , graphics module  132 , text input module  134 , GPS module  135 , and browser module  147 , map module  154  includes executable instructions to receive, display, modify, and store maps and data associated with maps (e.g., driving directions; data on stores and other points of interest at or near a particular location; and other location-based data) in accordance with user instructions. 
     In conjunction with touch-sensitive display system  112 , display system controller  156 , contact module  130 , graphics module  132 , audio circuitry  110 , speaker  111 , RF circuitry  108 , text input module  134 , e-mail client module  140 , and browser module  147 , online video module  155  includes executable instructions that allow the user to access, browse, receive (e.g., by streaming and/or download), play back (e.g., on the touch screen  112 , or on an external display connected wirelessly or via external port  124 ), send an e-mail with a link to a particular online video, and otherwise manage online videos in one or more file formats, such as H. 264 . In some embodiments, instant messaging module  141 , rather than e-mail client module  140 , is used to send a link to a particular online video. 
     Each of the above identified modules and applications correspond to a set of executable instructions for performing one or more functions described above and the methods described in this application (e.g., the computer-implemented methods and other information processing methods described herein). These modules (i.e., sets of instructions) need not be implemented as separate software programs, procedures or modules, and thus various subsets of these modules are, optionally, combined or otherwise re-arranged in various embodiments. In some embodiments, memory  102  optionally stores a subset of the modules and data structures identified above. Furthermore, memory  102  optionally stores additional modules and data structures not described above. 
     In some embodiments, device  100  is a device where operation of a predefined set of functions on the device is performed exclusively through a touch screen and/or a touchpad. By using a touch screen and/or a touchpad as the primary input control device for operation of device  100 , the number of physical input control devices (such as push buttons, dials, and the like) on device  100  is, optionally, reduced. 
     The predefined set of functions that are performed exclusively through a touch screen and/or a touchpad optionally include navigation between user interfaces. In some embodiments, the touchpad, when touched by the user, navigates device  100  to a main, home, or root menu from any user interface that is displayed on device  100 . In such embodiments, a “menu button” is implemented using a touchpad. In some other embodiments, the menu button is a physical push button or other physical input control device instead of a touchpad. 
       FIG. 1B  is a block diagram illustrating exemplary components for event handling in accordance with some embodiments. In some embodiments, memory  102  (in  FIGS. 1A ) or  370  ( FIG. 3 ) includes event sorter  170  (e.g., in operating system  126 ) and a respective application  136 - 1  (e.g., any of the aforementioned applications  136 ,  137 - 155 ,  380 - 390 ). 
     Event sorter  170  receives event information and determines the application  136 - 1  and application view  191  of application  136 - 1  to which to deliver the event information. Event sorter  170  includes event monitor  171  and event dispatcher module  174 . In some embodiments, application  136 - 1  includes application internal state  192 , which indicates the current application view(s) displayed on touch-sensitive display system  112  when the application is active or executing. In some embodiments, device/global internal state  157  is used by event sorter  170  to determine which application(s) is (are) currently active, and application internal state  192  is used by event sorter  170  to determine application views  191  to which to deliver event information. 
     In some embodiments, application internal state  192  includes additional information, such as one or more of: resume information to be used when application  136 - 1  resumes execution, user interface state information that indicates information being displayed or that is ready for display by application  136 - 1 , a state queue for enabling the user to go back to a prior state or view of application  136 - 1 , and a redo/undo queue of previous actions taken by the user. 
     Event monitor  171  receives event information from peripherals interface  118 . Event information includes information about a sub-event (e.g., a user touch on touch-sensitive display system  112 , as part of a multi-touch gesture). Peripherals interface  118  transmits information it receives from I/O subsystem  106  or a sensor, such as proximity sensor  166 , accelerometer(s)  168 , and/or microphone  113  (through audio circuitry  110 ). Information that peripherals interface  118  receives from I/O subsystem  106  includes information from touch-sensitive display system  112  or a touch-sensitive surface. 
     In some embodiments, event monitor  171  sends requests to the peripherals interface  118  at predetermined intervals. In response, peripherals interface  118  transmits event information. In other embodiments, peripheral interface  118  transmits event information only when there is a significant event (e.g., receiving an input above a predetermined noise threshold and/or for more than a predetermined duration). 
     In some embodiments, event sorter  170  also includes a hit view determination module  172  and/or an active event recognizer determination module  173 . 
     Hit view determination module  172  provides software procedures for determining where a sub-event has taken place within one or more views, when touch-sensitive display system  112  displays more than one view. Views are made up of controls and other elements that a user can see on the display. 
     Another aspect of the user interface associated with an application is a set of views, sometimes herein called application views or user interface windows, in which information is displayed and touch-based gestures occur. The application views (of a respective application) in which a touch is detected optionally correspond to programmatic levels within a programmatic or view hierarchy of the application. For example, the lowest level view in which a touch is detected is, optionally, called the hit view, and the set of events that are recognized as proper inputs are, optionally, determined based, at least in part, on the hit view of the initial touch that begins a touch-based gesture. 
     Hit view determination module  172  receives information related to sub-events of a touch-based gesture. When an application has multiple views organized in a hierarchy, hit view determination module  172  identifies a hit view as the lowest view in the hierarchy which should handle the sub-event. In most circumstances, the hit view is the lowest level view in which an initiating sub-event occurs (i.e., the first sub-event in the sequence of sub-events that form an event or potential event). Once the hit view is identified by the hit view determination module, the hit view typically receives all sub-events related to the same touch or input source for which it was identified as the hit view. 
     Active event recognizer determination module  173  determines which view or views within a view hierarchy should receive a particular sequence of sub-events. In some embodiments, active event recognizer determination module  173  determines that only the hit view should receive a particular sequence of sub-events. In other embodiments, active event recognizer determination module  173  determines that all views that include the physical location of a sub-event are actively involved views, and therefore determines that all actively involved views should receive a particular sequence of sub-events. In other embodiments, even if touch sub-events were entirely confined to the area associated with one particular view, views higher in the hierarchy would still remain as actively involved views. 
     Event dispatcher module  174  dispatches the event information to an event recognizer (e.g., event recognizer  180 ). In embodiments including active event recognizer determination module  173 , event dispatcher module  174  delivers the event information to an event recognizer determined by active event recognizer determination module  173 . In some embodiments, event dispatcher module  174  stores in an event queue the event information, which is retrieved by a respective event receiver module  182 . 
     In some embodiments, operating system  126  includes event sorter  170 . Alternatively, application  136 - 1  includes event sorter  170 . In yet other embodiments, event sorter  170  is a stand-alone module, or a part of another module stored in memory  102 , such as contact/motion module  130 . 
     In some embodiments, application  136 - 1  includes a plurality of event handlers  190  and one or more application views  191 , each of which includes instructions for handling touch events that occur within a respective view of the application&#39;s user interface. Each application view  191  of the application  136 - 1  includes one or more event recognizers  180 . Typically, a respective application view  191  includes a plurality of event recognizers  180 . In other embodiments, one or more of event recognizers  180  are part of a separate module, such as a user interface kit (not shown) or a higher level object from which application  136 - 1  inherits methods and other properties. In some embodiments, a respective event handler  190  includes one or more of: data updater  176 , object updater  177 , GUI updater  178 , and/or event data  179  received from event sorter  170 . Event handler  190  optionally utilizes or calls data updater  176 , object updater  177  or GUI updater  178  to update the application internal state  192 . Alternatively, one or more of the application views  191  includes one or more respective event handlers  190 . Also, in some embodiments, one or more of data updater  176 , object updater  177 , and GUI updater  178  are included in a respective application view  191 . 
     A respective event recognizer  180  receives event information (e.g., event data  179 ) from event sorter  170 , and identifies an event from the event information. Event recognizer  180  includes event receiver  182  and event comparator  184 . In some embodiments, event recognizer  180  also includes at least a subset of: metadata  183 , and event delivery instructions  188  (which optionally include sub-event delivery instructions). 
     Event receiver  182  receives event information from event sorter  170 . The event information includes information about a sub-event, for example, a touch or a touch movement. Depending on the sub-event, the event information also includes additional information, such as location of the sub-event. When the sub-event concerns motion of a touch, the event information optionally also includes speed and direction of the sub-event. In some embodiments, events include rotation of the device from one orientation to another (e.g., from a portrait orientation to a landscape orientation, or vice versa), and the event information includes corresponding information about the current orientation (also called device attitude) of the device. 
     Event comparator  184  compares the event information to predefined event or sub-event definitions and, based on the comparison, determines an event or sub-event, or determines or updates the state of an event or sub-event. In some embodiments, event comparator  184  includes event definitions  186 . Event definitions  186  contain definitions of events (e.g., predefined sequences of sub-events), for example, event 1 ( 187 - 1 ), event 2 ( 187 - 2 ), and others. In some embodiments, sub-events in an event  187  include, for example, touch begin, touch end, touch movement, touch cancellation, and multiple touching. In one example, the definition for event 1 ( 187 - 1 ) is a double tap on a displayed object. The double tap, for example, comprises a first touch (touch begin) on the displayed object for a predetermined phase, a first lift-off (touch end) for a predetermined phase, a second touch (touch begin) on the displayed object for a predetermined phase, and a second lift-off (touch end) for a predetermined phase. In another example, the definition for event 2 ( 187 - 2 ) is a dragging on a displayed object. The dragging, for example, comprises a touch (or contact) on the displayed object for a predetermined phase, a movement of the touch across touch-sensitive display system  112 , and lift-off of the touch (touch end). In some embodiments, the event also includes information for one or more associated event handlers  190 . 
     In some embodiments, event definition  187  includes a definition of an event for a respective user-interface object. In some embodiments, event comparator  184  performs a hit test to determine which user-interface object is associated with a sub-event. For example, in an application view in which three user-interface objects are displayed on touch-sensitive display system  112 , when a touch is detected on touch-sensitive display system  112 , event comparator  184  performs a hit test to determine which of the three user-interface objects is associated with the touch (sub-event). If each displayed object is associated with a respective event handler  190 , the event comparator uses the result of the hit test to determine which event handler  190  should be activated. For example, event comparator  184  selects an event handler associated with the sub-event and the object triggering the hit test. 
     In some embodiments, the definition for a respective event  187  also includes delayed actions that delay delivery of the event information until after it has been determined whether the sequence of sub-events does or does not correspond to the event recognizer&#39;s event type. 
     When a respective event recognizer  180  determines that the series of sub-events do not match any of the events in event definitions  186 , the respective event recognizer  180  enters an event impossible, event failed, or event ended state, after which it disregards subsequent sub-events of the touch-based gesture. In this situation, other event recognizers, if any, that remain active for the hit view continue to track and process sub-events of an ongoing touch-based gesture. 
     In some embodiments, a respective event recognizer  180  includes metadata  183  with configurable properties, flags, and/or lists that indicate how the event delivery system should perform sub-event delivery to actively involved event recognizers. In some embodiments, metadata  183  includes configurable properties, flags, and/or lists that indicate how event recognizers interact, or are enabled to interact, with one another. In some embodiments, metadata  183  includes configurable properties, flags, and/or lists that indicate whether sub-events are delivered to varying levels in the view or programmatic hierarchy. 
     In some embodiments, a respective event recognizer  180  activates event handler  190  associated with an event when one or more particular sub-events of an event are recognized. In some embodiments, a respective event recognizer  180  delivers event information associated with the event to event handler  190 . Activating an event handler  190  is distinct from sending (and deferred sending) sub-events to a respective hit view. In some embodiments, event recognizer  180  throws a flag associated with the recognized event, and event handler  190  associated with the flag catches the flag and performs a predefined process. 
     In some embodiments, event delivery instructions  188  include sub-event delivery instructions that deliver event information about a sub-event without activating an event handler. Instead, the sub-event delivery instructions deliver event information to event handlers associated with the series of sub-events or to actively involved views. Event handlers associated with the series of sub-events or with actively involved views receive the event information and perform a predetermined process. 
     In some embodiments, data updater  176  creates and updates data used in application  136 - 1 . For example, data updater  176  updates the telephone number used in contacts module  137 , or stores a video file used in video player module  145 . In some embodiments, object updater  177  creates and updates objects used in application  136 - 1 . For example, object updater  177  creates a new user-interface object or updates the position of a user-interface object. GUI updater  178  updates the GUI. For example, GUI updater  178  prepares display information and sends it to graphics module  132  for display on a touch-sensitive display. 
     In some embodiments, event handler(s)  190  includes or has access to data updater  176 , object updater  177 , and GUI updater  178 . In some embodiments, data updater  176 , object updater  177 , and GUI updater  178  are included in a single module of a respective application  136 - 1  or application view  191 . In other embodiments, they are included in two or more software modules. 
     It shall be understood that the foregoing discussion regarding event handling of user touches on touch-sensitive displays also applies to other forms of user inputs to operate multifunction devices  100  with input-devices, not all of which are initiated on touch screens. For example, mouse movement and mouse button presses, optionally coordinated with single or multiple keyboard presses or holds; contact movements such as taps, drags, scrolls, etc., on touch-pads; pen stylus inputs; movement of the device; oral instructions; detected eye movements; biometric inputs; and/or any combination thereof are optionally utilized as inputs corresponding to sub-events which define an event to be recognized. 
       FIG. 2  illustrates a portable multifunction device  100  having a touch screen (e.g., touch-sensitive display system  112 ,  FIG. 1A ) in accordance with some embodiments. The touch screen optionally displays one or more graphics within user interface (UI)  200 . In this embodiment, as well as others described below, a user is enabled to select one or more of the graphics by making a gesture on the graphics, for example, with one or more fingers  202  (not drawn to scale in the figure) or one or more styluses  203  (not drawn to scale in the figure). In some embodiments, selection of one or more graphics occurs when the user breaks contact with the one or more graphics. In some embodiments, the gesture optionally includes one or more taps, one or more swipes (from left to right, right to left, upward and/or downward) and/or a rolling of a finger (from right to left, left to right, upward and/or downward) that has made contact with device  100 . In some implementations or circumstances, inadvertent contact with a graphic does not select the graphic. For example, a swipe gesture that sweeps over an application icon optionally does not select the corresponding application when the gesture corresponding to selection is a tap. 
     Device  100  optionally also includes one or more physical buttons, such as “home” or menu button  204 . As described previously, menu button  204  is, optionally, used to navigate to any application  136  in a set of applications that are, optionally executed on device  100 . Alternatively, in some embodiments, the menu button is implemented as a soft key in a GUI displayed on the touch-screen display. 
     In some embodiments, device  100  includes the touch-screen display, menu button  204 , push button  206  for powering the device on/off and locking the device, volume adjustment button(s)  208 , Subscriber Identity Module (SIM) card slot  210 , head set jack  212 , and docking/charging external port  124 . Push button  206  is, optionally, used to turn the power on/off on the device by depressing the button and holding the button in the depressed state for a predefined time interval; to lock the device by depressing the button and releasing the button before the predefined time interval has elapsed; and/or to unlock the device or initiate an unlock process. In some embodiments, device  100  also accepts verbal input for activation or deactivation of some functions through microphone  113 . Device  100  also, optionally, includes one or more contact intensity sensors  165  for detecting intensity of contacts on touch-sensitive display system  112  and/or one or more tactile output generators  167  for generating tactile outputs for a user of device  100 . 
       FIG. 3  is a block diagram of an exemplary multifunction device with a display and a touch-sensitive surface in accordance with some embodiments. Device  300  need not be portable. In some embodiments, device  300  is a laptop computer, a desktop computer, a tablet computer, a multimedia player device, a navigation device, an educational device (such as a child&#39;s learning toy), a gaming system, or a control device (e.g., a home or industrial controller). Device  300  typically includes one or more processing units (CPU&#39;s)  310 , one or more network or other communications interfaces  360 , memory  370 , and one or more communication buses  320  for interconnecting these components. Communication buses  320  optionally include circuitry (sometimes called a chipset) that interconnects and controls communications between system components. Device  300  includes input/output (I/O) interface  330  comprising display  340 , which is typically a touch-screen display. I/O interface  330  also optionally includes a keyboard and/or mouse (or other pointing device)  350  and touchpad  355 , tactile output generator  357  for generating tactile outputs on device  300  (e.g., similar to tactile output generator(s)  167  described above with reference to  FIG. 1A ), sensors  359  (e.g., optical, acceleration, proximity, touch-sensitive, and/or contact intensity sensors similar to contact intensity sensor(s)  165  described above with reference to  FIG. 1A ). Memory  370  includes high-speed random access memory, such as DRAM, SRAM, DDR RAM or other random access solid state memory devices; and optionally includes non-volatile memory, such as one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, or other non-volatile solid state storage devices. Memory  370  optionally includes one or more storage devices remotely located from CPU(s)  310 . In some embodiments, memory  370  stores programs, modules, and data structures analogous to the programs, modules, and data structures stored in memory  102  of portable multifunction device  100  ( FIG. 1A ), or a subset thereof. Furthermore, memory  370  optionally stores additional programs, modules, and data structures not present in memory  102  of portable multifunction device  100 . For example, memory  370  of device  300  optionally stores drawing module  380 , presentation module  382 , word processing module  384 , website creation module  386 , disk authoring module  388 , and/or spreadsheet module  390 , while memory  102  of portable multifunction device  100  ( FIG. 1A ) optionally does not store these modules. 
     Each of the above identified elements in  FIG. 3  are, optionally, stored in one or more of the previously mentioned memory devices. Each of the above identified modules corresponds to a set of instructions for performing a function described above. The above identified modules or programs (i.e., sets of instructions) need not be implemented as separate software programs, procedures or modules, and thus various subsets of these modules are, optionally, combined or otherwise re-arranged in various embodiments. In some embodiments, memory  370  optionally stores a subset of the modules and data structures identified above. Furthermore, memory  370  optionally stores additional modules and data structures not described above. 
     Attention is now directed towards embodiments of user interfaces (“UI”) that are, optionally, implemented on portable multifunction device  100 . 
       FIG. 4A  illustrates an exemplary user interface for a menu of applications on portable multifunction device  100  in accordance with some embodiments. Similar user interfaces are, optionally, implemented on device  300 . In some embodiments, user interface  400  includes the following elements, or a subset or superset thereof:
         Signal strength indicator(s)  402  for wireless communication(s), such as cellular and Wi-Fi signals;   Time  404 ;   Bluetooth indicator  405 ;   Battery status indicator  406 ;   Tray  408  with icons for frequently used applications, such as:
           Icon  416  for telephone module  138 , labeled “Phone,” which optionally includes an indicator  414  of the number of missed calls or voicemail messages;   Icon  418  for e-mail client module  140 , labeled “Mail,” which optionally includes an indicator  410  of the number of unread e-mails;   Icon  420  for browser module  147 , labeled “Browser;” and   Icon  422  for video and music player module  152 , also referred to as iPod (trademark of Apple Inc.) module  152 , labeled “iPod;” and   
           Icons for other applications, such as:
           Icon  424  for IM module  141 , labeled “Messages;”   Icon  426  for calendar module  148 , labeled “Calendar;”   Icon  428  for image management module  144 , labeled “Photos;”   Icon  430  for camera module  143 , labeled “Camera;”   Icon  432  for online video module  155 , labeled “Online Video;”   Icon  434  for stocks widget  149 - 2 , labeled “Stocks;”   Icon  436  for map module  154 , labeled “Maps;”   Icon  438  for weather widget  149 - 1 , labeled “Weather;”   Icon  440  for alarm clock widget  149 - 4 , labeled “Clock;”   Icon  442  for workout support module  142 , labeled “Workout Support;”   Icon  444  for notes module  153 , labeled “Notes;” and   Icon  446  for a settings application or module, which provides access to settings for device  100  and its various applications  136 .   
               

     It should be noted that the icon labels illustrated in  FIG. 4A  are merely exemplary. For example, in some embodiments, icon  422  for video and music player module  152  is labeled “Music” or “Music Player.” Other labels are, optionally, used for various application icons. In some embodiments, a label for a respective application icon includes a name of an application corresponding to the respective application icon. In some embodiments, a label for a particular application icon is distinct from a name of an application corresponding to the particular application icon. 
       FIG. 4B  illustrates an exemplary user interface on a device (e.g., device  300 ,  FIG. 3 ) with a touch-sensitive surface  451  (e.g., a tablet or touchpad  355 ,  FIG. 3 ) that is separate from the display  450 . Device  300  also, optionally, includes one or more contact intensity sensors (e.g., one or more of sensors  357 ) for detecting intensity of contacts on touch-sensitive surface  451  and/or one or more tactile output generators  359  for generating tactile outputs for a user of device  300 . 
       FIG. 4B  illustrates an exemplary user interface on a device (e.g., device  300 ,  FIG. 3 ) with a touch-sensitive surface  451  (e.g., a tablet or touchpad  355 ,  FIG. 3 ) that is separate from the display  450 . Although many of the examples that follow will be given with reference to inputs on touch screen display  112  (where the touch sensitive surface and the display are combined), in some embodiments, the device detects inputs on a touch-sensitive surface that is separate from the display, as shown in  FIG. 4B . In some embodiments, the touch-sensitive surface (e.g.,  451  in  FIG. 4B ) has a primary axis (e.g.,  452  in  FIG. 4B ) that corresponds to a primary axis (e.g.,  453  in  FIG. 4B ) on the display (e.g.,  450 ). In accordance with these embodiments, the device detects contacts (e.g.,  460  and  462  in  FIG. 4B ) with the touch-sensitive surface  451  at locations that correspond to respective locations on the display (e.g., in  FIG. 4B, 460  corresponds to  468  and  462  corresponds to  470 ). In this way, user inputs (e.g., contacts  460  and  462 , and movements thereof) detected by the device on the touch-sensitive surface (e.g.,  451  in  FIG. 4B ) are used by the device to manipulate the user interface on the display (e.g.,  450  in  FIG. 4B ) of the multifunction device when the touch-sensitive surface is separate from the display. It should be understood that similar methods are, optionally, used for other user interfaces described herein. 
     Additionally, while the following examples are given primarily with reference to finger inputs (e.g., finger contacts, finger tap gestures, finger swipe gestures, etc.), it should be understood that, in some embodiments, one or more of the finger inputs are replaced with input from another input device (e.g., a mouse based input or a stylus input). For example, a swipe gesture is, optionally, replaced with a mouse click (e.g., instead of a contact) followed by movement of the cursor along the path of the swipe (e.g., instead of movement of the contact). As another example, a tap gesture is, optionally, replaced with a mouse click while the cursor is located over the location of the tap gesture (e.g., instead of detection of the contact followed by ceasing to detect the contact). Similarly, when multiple user inputs are simultaneously detected, it should be understood that multiple computer mice are, optionally, used simultaneously, or a mouse and finger contacts are, optionally, used simultaneously. 
     As used herein, the term “focus selector” refers to an input element that indicates a current part of a user interface with which a user is interacting. In some implementations that include a cursor or other location marker, the cursor acts as a “focus selector,” so that when an input (e.g., a press input) is detected on a touch-sensitive surface (e.g., touchpad  355  in  FIG. 3  or touch-sensitive surface  451  in  FIG. 4B ) while the cursor is over a particular user interface element (e.g., a button, window, slider or other user interface element), the particular user interface element is adjusted in accordance with the detected input. In some implementations that include a touch-screen display (e.g., touch-sensitive display system  112  in  FIG. 1A  or the touch screen in  FIG. 4A ) that enables direct interaction with user interface elements on the touch-screen display, a detected contact on the touch-screen acts as a “focus selector,” so that when an input (e.g., a press input by the contact) is detected on the touch-screen display at a location of a particular user interface element (e.g., a button, window, slider or other user interface element), the particular user interface element is adjusted in accordance with the detected input. In some implementations, focus is moved from one region of a user interface to another region of the user interface without corresponding movement of a cursor or movement of a contact on a touch-screen display (e.g., by using a tab key or arrow keys to move focus from one button to another button); in these implementations, the focus selector moves in accordance with movement of focus between different regions of the user interface. Without regard to the specific form taken by the focus selector, the focus selector is generally the user interface element (or contact on a touch-screen display) that is controlled by the user so as to communicate the user&#39;s intended interaction with the user interface (e.g., by indicating, to the device, the element of the user interface with which the user is intending to interact). For example, the location of a focus selector (e.g., a cursor, a contact, or a selection box) over a respective button while a press input is detected on the touch-sensitive surface (e.g., a touchpad or touch screen) will indicate that the user is intending to activate the respective button (as opposed to other user interface elements shown on a display of the device). 
     As used in the specification and claims, the term “intensity” of a contact on a touch-sensitive surface refers to the force or pressure (force per unit area) of a contact (e.g., a finger contact or a stylus contact) on the touch-sensitive surface, or to a substitute (proxy) for the force or pressure of a contact on the touch-sensitive surface. The intensity of a contact has a range of values that includes at least four distinct values and more typically includes hundreds of distinct values (e.g., at least 256). Intensity of a contact is, optionally, determined (or measured) using various approaches and various sensors or combinations of sensors. For example, one or more force sensors underneath or adjacent to the touch-sensitive surface are, optionally, used to measure force at various points on the touch-sensitive surface. In some implementations, force measurements from multiple force sensors are combined (e.g., a weighted average or a sum) to determine an estimated force of a contact. Similarly, a pressure-sensitive tip of a stylus is, optionally, used to determine a pressure of the stylus on the touch-sensitive surface. Alternatively, the size of the contact area detected on the touch-sensitive surface and/or changes thereto, the capacitance of the touch-sensitive surface proximate to the contact and/or changes thereto, and/or the resistance of the touch-sensitive surface proximate to the contact and/or changes thereto are, optionally, used as a substitute for the force or pressure of the contact on the touch-sensitive surface. In some implementations, the substitute measurements for contact force or pressure are used directly to determine whether an intensity threshold has been exceeded (e.g., the intensity threshold is described in units corresponding to the substitute measurements). In some implementations, the substitute measurements for contact force or pressure are converted to an estimated force or pressure and the estimated force or pressure is used to determine whether an intensity threshold has been exceeded (e.g., the intensity threshold is a pressure threshold measured in units of pressure). Using the intensity of a contact as an attribute of a user input allows for user access to additional device functionality that may otherwise not be readily accessible by the user on a reduced-size device with limited real estate for displaying affordances (e.g., on a touch-sensitive display) and/or receiving user input (e.g., via a touch-sensitive display, a touch-sensitive surface, or a physical/mechanical control such as a knob or a button). 
     In some embodiments, contact/motion module  130  uses a set of one or more intensity thresholds to determine whether an operation has been performed by a user (e.g., to determine whether a user has “clicked” on an icon). In some embodiments, at least a subset of the intensity thresholds are determined in accordance with software parameters (e.g., the intensity thresholds are not determined by the activation intensity thresholds of particular physical actuators and can be adjusted without changing the physical hardware of device  100 ). For example, a mouse “click” threshold of a trackpad or touch-screen display can be set to any of a large range of predefined thresholds values without changing the trackpad or touch-screen display hardware. Additionally, in some embodiments, a user of the device is provided with software settings for adjusting one or more of the set of intensity thresholds (e.g., by adjusting individual intensity thresholds and/or by adjusting a plurality of intensity thresholds at once with a system-level click “intensity” parameter). 
     As used in the specification and claims, the term “characteristic intensity” of a contact refers to a characteristic of the contact based on one or more intensities of the contact. In some embodiments, the characteristic intensity is based on multiple intensity samples. The characteristic intensity is, optionally, based on a predefined number of intensity samples, or a set of intensity samples collected during a predetermined time period (e.g., 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10 seconds) relative to a predefined event (e.g., after detecting the contact, prior to detecting liftoff of the contact, before or after detecting a start of movement of the contact, prior to detecting an end of the contact, before or after detecting an increase in intensity of the contact, and/or before or after detecting a decrease in intensity of the contact). A characteristic intensity of a contact is, optionally based on one or more of: a maximum value of the intensities of the contact, a mean value of the intensities of the contact, an average value of the intensities of the contact, a top 10 percentile value of the intensities of the contact, a value at the half maximum of the intensities of the contact, a value at the 90 percent maximum of the intensities of the contact, or the like. In some embodiments, the duration of the contact is used in determining the characteristic intensity (e.g., when the characteristic intensity is an average of the intensity of the contact over time). In some embodiments, the characteristic intensity is compared to a set of one or more intensity thresholds to determine whether an operation has been performed by a user. For example, the set of one or more intensity thresholds may include a first intensity threshold and a second intensity threshold. In this example, a contact with a characteristic intensity that does not exceed the first threshold results in a first operation, a contact with a characteristic intensity that exceeds the first intensity threshold and does not exceed the second intensity threshold results in a second operation, and a contact with a characteristic intensity that exceeds the second intensity threshold results in a third operation. In some embodiments, a comparison between the characteristic intensity and one or more intensity thresholds is used to determine whether or not to perform one or more operations (e.g., whether to perform a respective option or forgo performing the respective operation) rather than being used to determine whether to perform a first operation or a second operation. 
     In some embodiments, a portion of a gesture is identified for purposes of determining a characteristic intensity. For example, a touch-sensitive surface may receive a continuous swipe contact transitioning from a start location and reaching an end location (e.g., a drag gesture), at which point the intensity of the contact increases. In this example, the characteristic intensity of the contact at the end location may be based on only a portion of the continuous swipe contact, and not the entire swipe contact (e.g., only the portion of the swipe contact at the end location). In some embodiments, a smoothing algorithm may be applied to the intensities of the swipe contact prior to determining the characteristic intensity of the contact. For example, the smoothing algorithm optionally includes one or more of: an unweighted sliding-average smoothing algorithm, a triangular smoothing algorithm, a median filter smoothing algorithm, and/or an exponential smoothing algorithm. In some circumstances, these smoothing algorithms eliminate narrow spikes or dips in the intensities of the swipe contact for purposes of determining a characteristic intensity. 
     The control heuristics figures (e.g.,  FIGS. 6A-6K ) described below include various intensity diagrams that show the current intensity of the contact on the touch-sensitive surface relative to one or more intensity thresholds (e.g., a light press activation intensity threshold I LA , respective activation intensity threshold IT speedA  associated with various playback speeds, a light press release intensity threshold I LR  and/or respective release intensity thresholds associated with various playback speeds). In some embodiments, the light press activation intensity threshold corresponds to an intensity at which the device will perform operations typically associated with clicking a button of a physical mouse or a trackpad. In some embodiments, the higher activation intensity thresholds correspond to intensities at which the device will perform operations that are different from operations typically associated with clicking a button of a physical mouse or a trackpad. In some embodiments, when a contact is detected with a characteristic intensity below the light press intensity threshold (e.g., and above a nominal contact-detection intensity threshold below which the contact is no longer detected), the device will move a focus selector in accordance with movement of the contact on the touch-sensitive surface without performing an operation associated with the light press activation intensity threshold or the higher activation intensity thresholds. Generally, unless otherwise stated, these intensity thresholds are consistent between different sets of user interface figures. 
     In some embodiments, the response of the device to inputs detected by the device depends on criteria based on the contact intensity during the input. For example, for some “light press” inputs, the intensity of a contact exceeding a first intensity threshold during the input triggers a first response. In some embodiments, the response of the device to inputs detected by the device depends on criteria that include both the contact intensity during the input and time-based criteria. For example, for some “deep press” inputs (e.g., press inputs with intensities reaching above one or more of the higher activation intensity thresholds), the intensity of a contact exceeding a second intensity threshold during the input, greater than the first intensity threshold for a light press, triggers a second response only if a delay time has elapsed between meeting the first intensity threshold and meeting the second intensity threshold. This delay time is typically less than 200 ms in duration (e.g., 40, 100, or 120 ms, depending on the magnitude of the second intensity threshold, with the delay time increasing as the second intensity threshold increases). This delay time helps to avoid accidental deep press inputs. As another example, for some “deep press” inputs, there is a reduced-sensitivity time period that occurs after the time at which the first intensity threshold is met. During the reduced-sensitivity time period, the second intensity threshold is increased. This temporary increase in the second intensity threshold also helps to avoid accidental deep press inputs. For other deep press inputs, the response to detection of a deep press input does not depend on time-based criteria. 
     In some embodiments, one or more of the input intensity thresholds and/or the corresponding outputs vary based on one or more factors, such as user settings, contact motion, input timing, application running, rate at which the intensity is applied, number of concurrent inputs, user history, environmental factors (e.g., ambient noise), focus selector position, and the like. Exemplary factors are described in U.S. patent application Ser. Nos. 14/399,606 and 14/624,296, which are incorporated by reference herein in their entireties. 
     For example,  FIG. 4C  illustrates a dynamic intensity threshold  480  that changes over time based in part on the intensity of touch input  476  over time. Dynamic intensity threshold  480  is a sum of two components, first component  474  that decays over time after a predefined delay time p 1  from when touch input  476  is initially detected, and second component  478  that trails the intensity of touch input  476  over time. The initial high intensity threshold of first component  474  reduces accidental triggering of a “deep press” response, while still allowing an immediate “deep press” response if touch input  476  provides sufficient intensity. Second component  478  reduces unintentional triggering of a “deep press” response by gradual intensity fluctuations of a touch input. In some embodiments, when touch input  476  satisfies dynamic intensity threshold  480  (e.g., at point  481  in  FIG. 4C ), the “deep press” response is triggered. 
       FIG. 4D  illustrates another dynamic intensity threshold  486  (e.g., intensity threshold I D ).  FIG. 4D  also illustrates two other intensity thresholds: a first intensity threshold I H  and a second intensity threshold I L . In  FIG. 4D , although touch input  484  satisfies the first intensity threshold I H  and the second intensity threshold I L  prior to time p 2 , no response is provided until delay time p 2  has elapsed at time  482 . Also in  FIG. 4D , dynamic intensity threshold  486  decays over time, with the decay starting at time  488  after a predefined delay time p 1  has elapsed from time  482  (when the response associated with the second intensity threshold I L  was triggered). This type of dynamic intensity threshold reduces accidental triggering of a response associated with the dynamic intensity threshold I D  immediately after, or concurrently with, triggering a response associated with a lower intensity threshold, such as the first intensity threshold I H  or the second intensity threshold I L . 
       FIG. 4E  illustrate yet another dynamic intensity threshold  492  (e.g., intensity threshold I D ). In  FIG. 4E , a response associated with the intensity threshold I L  is triggered after the delay time p 2  has elapsed from when touch input  490  is initially detected. Concurrently, dynamic intensity threshold  492  decays after the predefined delay time p 1  has elapsed from when touch input  490  is initially detected. So a decrease in intensity of touch input  490  after triggering the response associated with the intensity threshold IL, followed by an increase in the intensity of touch input  490 , without releasing touch input  490 , can trigger a response associated with the intensity threshold I D  (e.g., at time  494 ) even when the intensity of touch input  490  is below another intensity threshold, for example, the intensity threshold I L . 
     An increase of characteristic intensity of the contact from an intensity below the light press activation intensity threshold IT LA  to an intensity between the light press activation intensity threshold IT LA  and the next higher activation intensity threshold is sometimes referred to as a “light press” input. An increase of characteristic intensity of the contact from an intensity below a higher activation intensity threshold to an intensity above the higher activation intensity threshold is sometimes referred to as a “deep press” input. An increase of characteristic intensity of the contact from an intensity below the contact-detection intensity threshold to an intensity between the contact-detection intensity threshold and the light press activation intensity threshold IT LA  is sometimes referred to as detecting the contact on the touch-surface. A decrease of characteristic intensity of the contact from an intensity above the contact-detection intensity threshold to an intensity below the contact-detection intensity threshold is sometimes referred to as detecting liftoff of the contact from the touch-surface. In some embodiments, the contact-detection intensity is zero. In some embodiments, the contact-detection intensity is greater than zero. In some illustrations a shaded circle or oval is used to represent intensity of a contact on the touch-sensitive surface (e.g., as in shown by contact  512 ,  FIGS. 5C-5E ). In some illustrations, a circle or oval without shading is used represent a respective contact on the touch-sensitive surface without specifying the intensity of the respective contact. 
     In some embodiments, described herein, one or more operations are performed in response to detecting a gesture that includes a respective press input or in response to detecting the respective press input performed with a respective contact (or a plurality of contacts), where the respective press input is detected based at least in part on detecting an increase in intensity of the contact (or plurality of contacts) above a press-input intensity threshold. In some embodiments, the respective operation is performed in response to detecting the increase in intensity of the respective contact above the press-input intensity threshold (e.g., the respective operation is performed on a “down stroke” of the respective press input). In some embodiments, the press input includes an increase in intensity of the respective contact above the press-input intensity threshold and a subsequent decrease in intensity of the contact below the press-input intensity threshold, and the respective operation is performed in response to detecting the subsequent decrease in intensity of the respective contact below the press-input threshold (e.g., the respective operation is performed on an “up stroke” of the respective press input). 
     In some embodiments, the device employs intensity hysteresis to avoid accidental inputs sometimes termed “jitter,” where the device defines or selects a hysteresis intensity threshold with a predefined relationship to the press-input intensity threshold (e.g., the hysteresis intensity threshold is X intensity units lower than the press-input intensity threshold or the hysteresis intensity threshold is 75%, 90%, or some reasonable proportion of the press-input intensity threshold). Thus, in some embodiments, the press input includes an increase in intensity of the respective contact above the press-input intensity threshold and a subsequent decrease in intensity of the contact below the hysteresis intensity threshold that corresponds to the press-input intensity threshold, and the respective operation is performed in response to detecting the subsequent decrease in intensity of the respective contact below the hysteresis intensity threshold (e.g., the respective operation is performed on an “up stroke” of the respective press input). Similarly, in some embodiments, the press input is detected only when the device detects an increase in intensity of the contact from an intensity at or below the hysteresis intensity threshold to an intensity at or above the press-input intensity threshold and, optionally, a subsequent decrease in intensity of the contact to an intensity at or below the hysteresis intensity, and the respective operation is performed in response to detecting the press input (e.g., the increase in intensity of the contact or the decrease in intensity of the contact, depending on the circumstances). 
     For ease of explanation, the description of operations performed in response to a press input associated with a press-input intensity threshold or in response to a gesture including the press input are, optionally, triggered in response to detecting: an increase in intensity of a contact above the press-input intensity threshold, an increase in intensity of a contact from an intensity below the hysteresis intensity threshold to an intensity above the press-input intensity threshold, a decrease in intensity of the contact below the press-input intensity threshold, or a decrease in intensity of the contact below the hysteresis intensity threshold corresponding to the press-input intensity threshold. Additionally, in examples where an operation is described as being performed in response to detecting a decrease in intensity of a contact below the press-input intensity threshold, the operation is, optionally, performed in response to detecting a decrease in intensity of the contact below a hysteresis intensity threshold corresponding to, and lower than, the press-input intensity threshold. As described above, in some embodiments, the triggering of these responses also depends on time-based criteria being met (e.g., a delay time has elapsed between a first intensity threshold being met and a second intensity threshold being met). 
     User Interfaces and Associated Processes 
     Attention is now directed towards embodiments of user interfaces (“UI”) and associated processes that may be implemented on an electronic device, such as portable multifunction device  100  or device  300 , with a display, a touch-sensitive surface, and one or more sensors to detect intensity of contacts with the touch-sensitive surface. 
       FIGS. 5A-5F  illustrate exemplary user interfaces for controlling media presentation in accordance with some embodiments.  FIGS. 6A-6K  illustrate exemplary control heuristics for controlling media presentation in accordance with some embodiments. The user interfaces and control heuristics in these figures are used to illustrate the processes described below, including the processes in  FIGS. 7A-7H and 8A-8C . Although some of the examples which follow will be given with reference to inputs on a touch-screen display (where the touch-sensitive surface and the display are combined), in some embodiments, the device detects inputs on a touch-sensitive surface  451  that is separate from the display  450 , as shown in  FIG. 4B . 
       FIG. 5A  illustrates exemplary user interface  400  of an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1A ) when a media player application (e.g., video and music player module represented by icon  422 ,  FIG. 4A ) is executed on the electronic device. The media player application provides a media playback function to present media content (e.g., a collection of images, animation, video, music, speech, etc.) continuously at a selected playback speed (e.g., 0×, 1×, 2×, 5×, 10×, 20×, 30×, 60×, etc.). Examples of the media player application includes a music player application, a video player application, a presentation application that displays a slideshow, a multi-media editor application, an audio recorder application, a photo editor application that displays photos in a slideshow, and the like. User Interface  400  includes content window  502  and various user interface controls for controlling different aspects of media presentation in the media player application. In some embodiments, content window  502  includes play button  504 , and optionally a still image (e.g., an album cover image or representative video frame) or text (e.g., a title of media content) associated with a currently selected media file (e.g., a video clip titled “Life in the Desert”). 
     In some embodiments, user interface  400  further includes scrubber  506  which displays the total duration of the currently selected media content, and indicates (e.g., using indicator  508 ) the current playback progress of the selected media content. In some embodiments, a user can drag indicator  508  forward or backward along scrubber  506  to quickly jump to different locations in the selected media content. 
     In some embodiments, user interface  400  further includes a number of playback controls, including play control  510 , fast forward control  512 , and rewind control  514 . Play control  510  is used to start normal playback (e.g., at 1× speed) of the media content. Fast forward control  512  is used to start fast forwarding of the media content, e.g., by playing the media content at a speed higher than the normal playback speed. Rewind control  512  is used start rewinding of the media content, e.g., by playing the media content backward at a speed higher than the normal playback speed. In some embodiments, as described later in the present disclosure, one or more of playback controls  510 ,  512  and  514  are used to increase the current playback speed to one or more higher levels. The higher playback speed may be momentary and lasts only for a user-specified duration (e.g., while the intensity of the press input meets certain criteria). Alternatively, the higher playback speeds may be maintained until a new input on one of the playback controls is received. 
       FIG. 5B  illustrates that normal playback (e.g., at 1× speed) of the currently selected media content has been started, e.g., in response to a tap or light press input detected on play button  504  or play control  510 . While the normal playback of the media content is ongoing, the current progress of the playback is indicated by indicator  508  on scrubber  506 . In some embodiments, playback control  510  is replaced with pause control  518 . In some embodiments, a stop control (not shown) may be included in user interface  400  for stopping the playback at any speed and return the start position of the selected media content to the beginning of the selected media content. For example, in some embodiments, a stop control may be presented next to playback controls  514 ,  518 , or  512  after the media player has started playing the media content. 
       FIG. 5C  illustrates that when a press input (e.g., represented by contact  520 ) is detected on fast forward control  512  while the media content is being presented at a normal playback speed (e.g., 1× speed), and the intensity of the contact reaches above a predetermined activation intensity threshold (e.g., the activation intensity threshold for a light press input I LA  or the activation intensity threshold associated with 2× speed), fast forward control  512  is optionally highlighted to indicate the activation of the fast forward function. In some embodiments, upon activation of the fast forward function, the speed by which the selected media content is presented in content window  502  is increased from the normal playback speed (e.g., 1× speed) to a first predetermined higher value (e.g., a first fast forward speed of two times the normal playback speed, or, 2× speed). In some embodiments, a playback speed indicator (e.g., speed indicator  522 ) is presented in user interface  400  to indicate the current playback speed (e.g., 2×). In some embodiments, tactile feedback (e.g., a tactile feedback that causes a click sensation in the user&#39;s finger in contact with fast forward control  512 ) is provided on touch screen  112  at the activation of the fast forward function. 
       FIG. 5D  illustrates that when the intensity of the same press input (e.g., the press input represented by contact  520  in  FIG. 5C ) increases from the predetermined activation intensity threshold for 2× speed to a value above the next higher activation intensity threshold (e.g., the activation intensity threshold for 5× speed), the speed of the media playback is increased from the first fast forward speed (e.g., 2× speed) to a second, higher fast forward speed (e.g., 5× speed). In some embodiments, the higher fast forward speed (e.g., 5× speed) is indicated by speed indicator  522  in content window  502 . In some embodiments, when the contact intensity reaches the second, higher activation intensity threshold (e.g., the activation intensity threshold for 5× speed), fast forward control  512  is highlighted (e.g., in a different manner from the highlighting shown in  FIG. 5C ) to indicate the activation of the second, higher fast forward speed. In some embodiments, tactile feedback (e.g., a tactile feedback that causes a click sensation in the user&#39;s finger in contact with fast forward control  512 ) is provided on touch screen  112  at the activation of the second, higher fast forward speed (e.g., 5× speed). 
       FIG. 5E  illustrates that when the intensity of the same press input (e.g., the press input represented by contact  520  in  FIGS. 5C and 5D ) increases from the predetermined activation intensity threshold for 5× speed to above the next higher activation intensity threshold (e.g., the activation intensity threshold for 10× speed), the speed of the media playback is increased from the second fast forward speed (e.g., 5× speed) to a third, higher fast forward speed (e.g., 10× speed). In some embodiments, the higher fast forward speed (e.g., 10×) is indicated by speed indicator  522  in content window  502 . In some embodiments, when the contact intensity reaches the next higher activation intensity threshold (e.g., the activation intensity threshold for 10× speed), fast forward control  512  is highlighted (e.g., in a different manner from the highlighting shown in  FIGS. 5C and 5D ) to indicate the activation of the higher fast forward speed (e.g., 10× speed). In some embodiments, tactile feedback (e.g., a tactile feedback that causes a click sensation in the user&#39;s finger in contact with fast forward control  512 ) is provided on touch screen  112  at the activation of the higher fast forward speed (e.g., 10× speed). 
       FIG. 5F  illustrates that the press input (e.g., the press input represented by contact  520  in  FIGS. 5C-5E ) has been terminated (e.g., intensity of contact  520  has dropped below a predetermined release intensity threshold for a tap or light press input and/or become undetectable). Upon detection that the termination of press input, the playback speed of the media content is returned back to the normal playback speed (e.g., 1× speed). In some embodiments, when the playback speed is first returned to the normal playback speed, speed indicator  522  displays the playback speed (e.g., 1×). In some embodiments, after the playback speed has remained at the normal playback speed for a predetermined duration (e.g., 3 seconds), speed indicator  522  is optionally removed from content window  502 . As shown in  FIG. 5F , fast forward control  512  is returned to its normal un-highlighted appearance after the press input has been terminated. 
     In some embodiments, although not shown in  FIGS. 5E and 5F , when the intensity of the press input drops gradually from a level above the activation intensity threshold for 10× speed to a level below the release intensity threshold for 2× speed, the intensity of contact  520  crosses respective release intensity thresholds for fast forward speed 10×, fast forward speed 5×, and fast forward speed 2×, one by one. In some embodiments, as the intensity of the contact crosses the respective release intensity thresholds of each of the fast forward speeds, the playback speed is dropped from a current fast forward speed to the next lower speed. Correspondingly, the highlighting of fast forward control  512  and the speed shown by speed indicator  522  are changed to those shown in  FIGS. 5E, 5D, and 5C  according to the current playback speed of the media content. In some embodiments, tactile feedback is provided at each instant that the respective release intensity threshold for the current fast forward speed is crossed. 
     The user interfaces illustrated in  FIGS. 5A-5F  are merely one example of how playback speed may be changed in response to a press input detected on a playback control. For example, in some embodiments, instead of a sustained press input, multiple press inputs or tap inputs may be used to raise the playback speed to different fast forward levels. In some embodiments, instead of returning the current playback speed to the normal playback speed or zero (0×) after a release intensity threshold for the lowest fast forward speed is crossed, the highest fast forward speed reached by a current press input can be locked in and maintained until a separate speed-restoring input is received (e.g., when a tap input is detected on pause control  518  or fast forward control  512 ). In some embodiments, whether to lock in a speed depends on the intensity profile of the press input relative to a predetermined lock time threshold (or time delay). In some embodiments, instead of increasing the playback speed in the forward direction in response to a press input detected on fast forward control  512 , the rewind speed may be increased in a similar manner in response to a press input detected on rewind control  514 . 
       FIGS. 6A-6K  illustrate exemplary control heuristics for controlling media presentation in accordance with some embodiments. The control heuristics illustrated in these figures may be used in the processes described below, including the processes in  FIGS. 7A-7H and 8A-8C . The inputs referenced in the description of the control heuristics may be inputs on a touch-screen display (where the touch-sensitive surface and the display are combined), or in some embodiments, inputs on a touch-sensitive surface  451  that is separate from the display  450 , as shown in  FIG. 4B . 
       FIGS. 6A and 6B  illustrate how a lock time threshold T L  is used to determine whether a light press input that triggers activation of a first fast forward speed (e.g., 2×) will cause the fast forward speed to be locked in after the light press input is terminated. In  FIGS. 6A and 6B , the initial playback speed at the time that the press input is received is zero (0×). In other words, the media content is in a paused or stopped state when the light press input is first detected (e.g., with a finger-down event triggered by the initial contact of a finger on the touch screen). The lock time threshold T L  may be any suitable length (e.g., 50 ms, 100 ms, 200 ms, 300 ms, 500 ms, 700 ms, or 1000 ms), and is optionally predefined in accordance with user preference or heuristics. 
       FIG. 6A  illustrates an exemplary scenario where the intensity of the press input increases above the activation intensity threshold I 2×A  (e.g., I 2×A =the activation intensity threshold I LA  for a “light press” input) of the first fast forward speed (e.g., 2×), and then falls below the release intensity threshold I 2×R  (e.g., I 2×R =the release intensity threshold I LR  for a “light press” input) of the first fast forward speed (e.g., 2×) before the lock time threshold T L  expires. The intensity of the press input never reaches the activation intensity threshold of the next higher playback speed (e.g., I 5×A ). As a result, the speed of playback is increased from zero (0×) to the first fast forward speed (e.g., 2×) upon crossing of the activation intensity threshold I 2×A  and remains at the first fast forward speed (e.g., 2×) after the intensity of the press input drops below the release intensity threshold I 2×R  for the first fast forward speed (e.g., 2×) and the press input is finally terminated (e.g., when the intensity drops below the contact-detection intensity or becomes undetectable). 
       FIG. 6B  illustrates an exemplary scenario where, instead of falling below the release intensity threshold I 2×R  before the lock time threshold T L  is reached, the intensity of the press input stayed above the release intensity threshold I 2×R  until the lock time threshold T L  has expired. The intensity of the press input then falls below the release intensity threshold I 2×R  of the first fast forward speed (e.g., 2×) before the press input is terminated. The intensity of the press input never reached the activation intensity of the next higher playback speed. As a result, the speed of playback is increased from zero (0×) to the first fast forward speed (e.g., 2×) upon crossing of the activation intensity threshold I 2×A  and remains at the first fast forward speed (e.g., 2×) until the intensity of the press input drops below the release intensity threshold I 2×R  for the first fast forward speed (e.g., 2×). In response to the intensity of the press input dropping below the release intensity threshold I 2×R  for the first fast forward speed (e.g., 2×), the playback speed is decreased from the first fast forward speed (e.g., 2×) to zero. The media player is returned from a fast forward state to the paused state. In some embodiments, as the contact intensity falls below the corresponding release intensity threshold for the higher playback speed, the reduction of the playback speed to zero may be gradual (e.g., in accordance with the rate of reduction of the contact intensity). 
     Although the above description of  FIGS. 6A and 6B  uses fast forwarding as an example. The same control heuristic can be used for rewinding. For example, in response to a light press input detected on a rewind control (e.g., rewind control  514 ) while the media player is in a paused or stopped state, the rewind speed is increased from zero to a first rewind speed (e.g., 2×) in the backward direction when the intensity of the press input reaches above the activation intensity threshold associated with the first rewind speed (e.g., 2×). Depending on the intensity profile of the press input relative to the lock time threshold T L , the rewind speed may be locked in at the first rewind speed (e.g., 2×), or returned to zero when the intensity of the press input drops below the release intensity associated with the first rewind speed (e.g., 2×). 
     In some embodiments, the respective activation intensity threshold and release intensity threshold associated with the first fast forward speed (e.g., 2×) are the same. In some embodiments, the respective activation intensity threshold and release intensity threshold associated with the first fast forward speed (e.g., 2×) are different, with the activation intensity threshold being greater than the release intensity threshold. In some embodiments, the activation intensity threshold and release intensity threshold associated with the first higher speed level (e.g., fast forward speed of 2× and rewind speed of 2×) are the same as the activation intensity threshold and release intensity threshold for a tap input that activates the play button (e.g., play control  510 ) of the media player. 
       FIG. 6A  above illustrates how to lock into a next higher playback speed with a light press input while the media player is in a stopped or paused state.  FIGS. 6B-6D  illustrate control heuristics in which higher playback speeds (e.g., different levels of fast forward or rewind speeds) are not locked in at the end of the press input (e.g., a press input with an intensity reaching above one or more higher activation intensity thresholds (e.g., the activation intensity thresholds associated with 2×, 5×, and 10× speeds). Instead, the playback speed is gradually stepped up in discrete levels and then stepped down to a predetermined level (e.g., 0×). 
       FIG. 6C  illustrates that, when the media player is at a paused or stopped state (with a playback speed of 0×), a deep press input with an intensity reaching above the respective activation intensity thresholds associated with two consecutive fast forward speeds (e.g., I 2×A  associated with fast forward speed 2×, and I 5×A  associated with fast forward speed 5×) is detected. In response to the rising intensity of the deep press input, the playback speed is stepped up from zero (0×) to the first fast forward speed (e.g., 2×) upon the intensity crossing the activation intensity threshold (e.g., I 2×A ) associated with the first fast forward speed (e.g., 2×). Then, as the intensity of the deep press input continues to increase and crosses the activation intensity threshold (e.g., I 5×A ) associated with the next higher fast forward speed (e.g., 5×), the playback speed is stepped up from the first fast forward speed (e.g., 2×) to the next higher fast forward speed (e.g., 5×). When the intensity of the deep press input then decreases and crosses the release intensity threshold (e.g., I 5×R ) associated with the highest achieved fast forward speed (e.g., 5×), the playback speed is stepped down from the highest achieved fast forward speed (e.g., 5×) to the next lower fast forward speed (e.g., 2×). When the intensity of the deep press input further decreases and crosses the release intensity threshold (e.g., I 2&gt;R =I LR ) associated with the next lower fast forward speed (e.g., 2×), the media player is returned to the paused state with a playback speed of zero (0×). 
       FIG. 6D  is similar to  FIG. 6C , where the media player is in a stopped or paused state when a deep press input is detected. The intensity of the deep press input reaches above the respective activation intensity thresholds associated with three fast forward speeds (e.g., I 2×A  associated with fast forward speed 2×, I 5×A  associated with fast forward speed 5×, and I 10×A  associated with fast forward speed 10×). In response to the rising intensity of the deep press input, the playback speed is stepped up from zero to the initial fast forward speed of 2× upon the intensity crossing the activation intensity threshold I 2×A , then from the initial fast forward speed of 2× to the next higher fast forward speed of 5× upon the intensity crossing the activation intensity threshold I 5×A , and then from the fast forward speed of 5× to the next higher fast forward speed of 10× upon the intensity crossing the activation intensity threshold I 10×A . When the intensity of the deep press input has peaked and started to decrease, the playback speed is stepped down from the highest achieved fast forward speed of 10× to the next lower fast forward speed of 5× upon the intensity crossing the release intensity threshold I 10×R  associated with the fast forward speed of 10×. When the intensity of the deep press input decreases further and crosses the release intensity threshold I 5×R  associated with the fast forward speed of 5×, the playback speed is stepped down from the fast forward speed of 5× to the next lower fast forward speed of 2×. When the intensity of the press input decreases further and crosses the release intensity threshold I 2×R  (e.g., I 2×R =I LR ) associated with the fast forward speed of 2×, the media player is returned to the paused state with a playback speed of zero. 
     Although the above description of  FIGS. 6C and 6D  uses fast forwarding as an example. The same control heuristic can be used for rewinding. For example, in response to a deep press input detected on a rewind control (e.g., rewind control  514 ) while the media player is in a paused or stopped state, the rewind speed is stepped up from zero to two or more higher rewind speeds (e.g., 2×, 5×, and 10×) in the backward direction when the intensity of the deep press input reaches above the activation intensity threshold associated each of those higher rewind speeds. On the down-stroke of the deep press input, the rewind speed is stepped down from the highest achieved rewind speed to each of the lower rewind speeds, and finally to zero, when the intensity of the deep press input reaches below the release intensity threshold associated with each of the previously achieved rewind speeds. 
       FIGS. 6E and 6F  illustrate how a lock time threshold T L  (e.g., the same T L  value or a different T L  value from the T L  value in  FIGS. 6A and 6B ) is used to determine whether a light press input that triggers activation of a first fast forward speed (e.g., 2×) will cause the fast forward speed to be locked in after the light press input is terminated. In  FIGS. 6E and 6F , the initial playback speed at the time that the light press input is received is the normal playback speed (e.g., 1×). In other words, the media content is in a normal playback state when the light press input is first detected (e.g., with a finger-down event triggered by the initial contact of a finger on the touch screen). The lock time threshold T L  may be any suitable length (e.g., 50 ms, 100 ms, 200 ms, 300 ms, 500 ms, 700 ms, or 1000 ms), and is optionally predefined in accordance with user preference or heuristics. 
       FIG. 6E  illustrates an exemplary scenario where the intensity of the deep press input increases above the activation intensity threshold I 2×A  (e.g., I 2×A =the activation intensity threshold I LA -for a “light press” input) of a first fast forward speed (e.g., 2×), and then falls below the release intensity threshold I 2×R  (e.g., I 2×R =the activation intensity threshold I LR -for a “light press” input) of the first fast forward speed (e.g., 2×) before the lock time threshold T L  expires. The intensity of the light press never reaches the next higher activation intensity threshold (e.g., I 5×A ). As a result, the speed of playback is increased from the normal playback speed (e.g., 1×) to the first fast forward speed (e.g., 2×) upon crossing of the activation intensity threshold I 2×A  and remains at the first fast forward speed (e.g., 2×) after the intensity of the light press input has dropped below the release intensity threshold I 2×R  for the first fast forward speed (e.g., 2×) and the press input is finally terminated (e.g., when the intensity drops below the contact-detection intensity or becomes undetectable). 
       FIG. 6F  illustrates an exemplary scenario where, instead of falling below the release intensity threshold I 2×R  before the lock time threshold T L  is reached, the intensity of the light press input stayed above the release intensity threshold I 2×R  until the lock time threshold T L  has expired. The intensity of the press input then falls below the release intensity threshold I 2×R  of the first fast forward speed (e.g., 2×) before the press input is terminated. The intensity of the light press input never reached the next higher activation intensity threshold (e.g., I 5×A ). As a result, the speed of playback is increased from the normal playback speed (e.g., 1×) to the first fast forward speed (e.g., 2×) upon crossing of the activation intensity threshold I 2×A  and remains at the first fast forward speed (e.g., 2×) until the intensity of the light press input drops below the release intensity threshold I 2×R  for the first fast forward speed (e.g., 2×). When the intensity of the light press input drops below the release intensity threshold I 2×R  for the first fast forward speed (e.g., 2×), the playback speed is decreased from the first fast forward speed (e.g., 2×) to the normal playback speed (e.g., 1×). The media player is returned from a fast forward state to the normal playback state. 
     Although the above description of  FIGS. 6E and 6F  uses fast forwarding as an example. The same control heuristic can be used for rewinding. For example, in response to a light press input detected on a rewind control (e.g., rewind control  514 ) while the media player is in a normal playback state (e.g., at 1× speed), the media player can change the normal playback speed in the forward direction to a first rewind speed (e.g., 2×) in the backward direction when the intensity of the light press input reaches above the activation intensity threshold associated with the first rewind speed (e.g., 2×). Depending on the intensity profile of the light press input relative to the lock time threshold T L , the rewind speed may be locked in at the first rewind speed (e.g., 2×) in the backward direction, or returned to the normal playback speed (e.g., 1×) in the forward direction when the intensity of the light press input drops below the release intensity associated with the first rewind speed (e.g., 2×). 
       FIG. 6E  above illustrates how to lock into a next higher playback speed with a light press input while the media player is in a normal playback state.  FIGS. 6F-6H  illustrate control heuristics in which higher playback speeds (e.g., different levels of fast forward or rewind speeds) are not locked in at the end of the press input (e.g., a deep press input with an intensity reaching above one or more higher activation intensity thresholds (e.g., the activation intensity thresholds associated with 2×, 5×, and 10× speeds). Instead, the playback speed is gradually stepped up in discrete levels and then stepped down to a predetermined level (e.g., 1×). 
       FIG. 6G  illustrates that, when the media player is already in a normal playback state (e.g., with a playback speed of 1×), a deep press input reaching above the respective activation intensity thresholds associated with two consecutive fast forward speeds (e.g., I 2×A  associated with fast forward speed 2×, and I 5×A  associated with fast forward speed 5×) is detected. In response to the rising intensity of the press input, the playback speed is stepped up from the normal playback speed (e.g., 1×) to the first fast forward speed (e.g., 2×) upon the intensity crossing the activation intensity threshold (e.g., I 2×A ) associated with the first fast forward speed (e.g., 2×). Then, as the intensity of the deep press input continues to increase and crosses the next higher activation intensity threshold (e.g., I 5×A ) associated with the next higher fast forward speed (e.g., 5×), the playback speed is stepped up from the first fast forward speed (e.g., 2×) to the next higher fast forward speed (e.g., 5×). When the intensity of the deep press input then decreases and crosses the release intensity threshold I 5×R  associated with the highest achieved fast forward speed (e.g., 5×), the playback speed is stepped down from the highest achieved fast forward speed (e.g., 5×) to the next lower fast forward speed (e.g., 2×). When the intensity of the deep press input further decreases and crosses the release intensity threshold (e.g., I 2×R =I LR ) associated with the lowest fast forward speed (e.g., 2×), the media player is returned to the normal playback state with a normal playback speed (e.g., 1×). 
       FIG. 6H  is similar to  FIG. 6G , where the media player is already in a normal playback state (e.g., with a playback speed of 1×) when a deep press input is detected. The intensity of the deep press input reaches above the respective activation intensity thresholds associated with three fast forward speeds (e.g., I 2×A  associated with fast forward speed 2×, I 5×A  associated with fast forward speed 5×, and I 10×A  associated with fast forward speed 10×). In response to the rising intensity of the deep press input, the playback speed is stepped up from the normal playback speed (e.g., 1×) to the initial fast forward speed (e.g., 2×) upon the intensity crossing the lowest activation intensity threshold (e.g., I 2×A ), then from the initial fast forward speed (e.g., 2×) to the next higher fast forward speed (e.g., 5×) upon the intensity crossing the corresponding activation intensity threshold (e.g., I 5×A ), and then from that higher fast forward speed (e.g., 5×) to the next, even higher fast forward speed (e.g., 10×) upon the intensity crossing the corresponding activation intensity threshold (e.g., I 10×A ). When the intensity of the deep press input has peaked and started to decrease, the playback speed is stepped down from the highest achieved fast forward speed (e.g.,10×) to the next lower fast forward speed (e.g., 5×) upon the intensity crossing the release intensity threshold (e.g., I 10×R ) associated with the highest achieved fast forward speed (e.g., 10×). When the intensity of the deep press input decreases further and crosses the release intensity threshold (e.g., I 5×R ) associated with the fast forward speed of 5×, the playback speed is stepped down from the fast forward speed of 5× to the next lower fast forward speed of 2×. When the intensity of the press input decreases further and crosses the release intensity threshold I 2×R  (e.g., I 2×R =I LR ) associated with the fast forward speed of 2×, the media player is returned to the normal playback state and stays in the normal playback state with a playback speed of 1×. Corresponding user interface changes for the scenario shown in  FIG. 6H  are illustrated in  FIGS. 5A-5F . 
     Although the above description of  FIGS. 6G and 6H  uses fast forwarding as an example. The same control heuristic can be used for rewinding. For example, in response to a deep press input detected on a rewind control (e.g., rewind control  514 ) while the media player is in a normal playback state, the device goes from the normal playback state into the rewind state, and the rewind speed is stepped up from zero to two or more higher rewind speeds (e.g., 2×, 5×, and 10×) in the backward direction when the intensity of the deep press input reaches above the activation intensity threshold associated each of those higher rewind speeds. On the down-stroke of the deep press input, the rewind speed is stepped down from the highest achieved rewind speed to each of the lower rewind speeds, and finally to zero, when the intensity of the deep press input reaches below the release intensity threshold associated with each of the previously achieved rewind speeds. When the rewind speed is back to zero, the device restarts the playback with a normal playback speed in the forward direction. 
       FIGS. 6I-6K  illustrate three control heuristics in which the initial playback speed of the media content is greater than the normal playback speed, e.g., at a first fast forward speed of 2×, when a press input is detected. 
       FIG. 6I  illustrates a control heuristic in which the lock time threshold T L  is not used to lock in a higher playback speed (e.g., a fast forward speed of 5×). As shown in  FIG. 6I , the initial playback speed at the time that the press input is received is the first fast forward speed (e.g., 2×). In other words, the media content is already being fast forwarded at 2× speed after a previous press input (e.g., the press input described in  FIGS. 6A or 6E ) on the fast forward control has been processed. As shown in  FIG. 6I , in some embodiments, instead of triggering the next higher fast forward speed (e.g., 5×) upon detecting the intensity of the press input reaching above the activation intensity threshold (e.g., I 5×A ) associated with the next higher fast forward speed (e.g., 5×), the playback speed is increased from the current fast forward speed (e.g., 2×) to the next higher fast forward speed (e.g., 5×) when the intensity of the light press input drops below the release intensity threshold I LR  of a light press. In other words, instead of triggering the activation of the higher playback speed on the down-stroke (or pushing down) of the light press input, the higher playback speed is triggered on the up-stroke (or lifting up) of the light press input. As shown in  FIG. 6I , if the media player is already in a fast forward state, a newly detected tap input on the fast forward control will cause the media player to go into and lock in the next higher fast forward speed (e.g., 5×). 
     Although the above description of  FIGS. 6I  uses fast forwarding as an example. The same control heuristic can be used for rewinding. For example, when the media player is already in the rewind state with a rewind speed of 2× in the backward direction, in response to a tap input detected on the rewind control (e.g., rewind control  514 ), the media player changes the rewind speed from 2× to 5× and maintains it at 5× in response to the intensity of the tap input falling below the release intensity threshold I LR . 
       FIG. 6J  illustrates that, when the media player is already in an initial fast forward state (with a fast forward speed of 2×), a deep press input reaching above the respective activation intensity threshold associated with the next higher fast forward speed (e.g., I 5×A  associated with fast forward speed of 5×) is detected. In response to the rising intensity of the deep press input, the playback speed is stepped up from the initial fast forward speed of 2× to the next higher fast forward speed of 5× upon the intensity crossing the activation intensity threshold I 5×A  associated with the next higher fast forward speed of 5×. When the intensity of the deep press input then decreases and crosses the release intensity threshold I 5×R  associated with the fast forward speed of 5×, the playback speed is stepped down from the fast forward speed of 5× to the next lower fast forward speed of 2×. When the intensity of the deep press input further decreases and crosses the release intensity threshold I 2×R  (e.g., I 2×R =I LR  ) associated with the fast forward speed of 2×, the media player is returned to the normal playback state with a normal playback speed of 1×. 
     It is worth noting that in  FIGS. 6I and 6J , if the media player is already in a fast forward state (e.g., with a playback speed of 2×), a press input may trigger the next higher fast forward speed (e.g., 5×) either on the up-stroke (e.g. lifting up) or the down-stroke (e.g., pushing down) of the press input. Specifically, if the press input is a light press that only crosses the lowest activation intensity threshold (e.g., I LA ), the next higher fast forward speed (e.g., 5×) is triggered when the intensity of the press input decreases and crosses the release intensity threshold (e.g., I LR  ) corresponding to the lowest activation intensity threshold (e.g., I LA ). In contrast, if the press input is a deep press that crosses not only the lowest activation intensity threshold (e.g., I LA ), but also one or more higher activation intensity thresholds (e.g., I 5×A  , I 10×A  , etc.), the next higher fast forward speed (e.g., 5×) is triggered when the intensity of the press input increases and crosses the next higher activation intensity threshold (e.g., I 5×A  ). 
       FIG. 6K  illustrates that, when the media player is already in an initial fast forward state (with a fast forward speed of 2×), a deep press input reaching above the respective activation intensity thresholds associated with two higher fast forward speeds (e.g., I 5×A  associated with fast forward speed 5× and I 10×A  associated with fast forward speed 10×) is detected. In response to the rising intensity of the deep press input, the playback speed is stepped up from the initial fast forward speed of 2× to the next higher fast forward speed of 5× upon the intensity crossing the activation intensity threshold I 5×A  associated with the next higher fast forward speed of 5×. Then, in response to further rising of the intensity of the deep press input, the playback speed is stepped up from the fast forward speed of 5× to the next higher fast forward speed of 10× upon the intensity crossing the activation intensity threshold I 10×A  associated with the next higher fast forward speed of 10×. When the intensity of the deep press input then decreases and crosses the release intensity threshold I 10×R  associated with the fast forward speed of 10×, the playback speed is stepped down from the fast forward speed of 10× to the next lower fast forward speed of 5×. When the intensity of the deep press input decreases further and crosses the release intensity threshold I 5×R  associated with the fast forward speed of 5×, the playback speed is stepped down from the fast forward speed of 5× to the next lower fast forward speed of 2×. When the intensity of the press input decreases further and crosses the release intensity threshold I 2×R  (e.g., I 2×R =I LR  ) associated with the fast forward speed of 2×, the media player is returned to the normal playback state with a normal playback speed of 1×. 
     Although only three levels of fast forward speeds are shown in  FIGS. 6D, 6H, and 6K , additional higher levels of fast forward speeds (e.g., 20×, 30×, 60×, 100×, 500×, etc.) are possible, each having an increasingly higher activation intensity threshold and corresponding release intensity threshold. 
     Similarly, although  FIGS. 6I-6K  shows the initial playback speed to be the lowest fast forward speed, the same heuristics shown in these figures are optionally used in cases where the initial playback speed is higher than the lowest fast forward speed. For example, if the initial playback speed at the time when the press input is detected is 5×, the playback speed can be stepped up to 10× on the up-stroke (or lifting up) of a light press input when the intensity crosses the release intensity threshold I LR  . If the media player supports additional levels of playback speeds above 10× (e.g., 20×, 50×, 100×, etc.) and if the initial playback speed is 10×, each of these higher playback speeds (e.g., 20×, 50×, 100×) may be achieved one by one with the intensity of a deep press input crossing respective activation intensity thresholds associated with the different higher playback speeds (e.g., 20×, 50×, 100×). In some embodiments, the activation and release intensity thresholds of the higher playback speeds may be adjusted (e.g., lowered) depending on the initial playback speed of the media content. 
     Although the above description of  FIGS. 6I-6K  uses fast forwarding as an example. The same control heuristic can be used for rewinding. In response to a light press input detected on the rewind control (e.g., rewind control  514 ), the media player can step up the rewind speed from an initial value (e.g., 2×) in the backward direction to the next higher rewind speed (e.g., 5×) upon lift up of the light press input. In response to a deep press input detected on the rewind control, the media player can step up the rewind speed from the initial value (e.g., 2×) in the backward direction to one or more higher rewind speeds (e.g., 5×, and/or 10×) in response to the contact intensity crossing the corresponding activation intensity thresholds of the one or more higher rewind speeds. The media player can then step down the rewind speeds one level at a time when the contact intensity of the press input crosses the release intensity threshold of each of the one or more achieved rewind speeds. In the case of rewinding, when the contact intensity of the deep press input crosses the lowest release intensity threshold (e.g., I 2×R =I LR  ) corresponding to the lowest rewind speed (e.g., 2×), the playback speed is optionally changed from the lowest rewind speed (e.g., 2×) in the backward direction to the normal playback speed (e.g., 1×) in the forward direction. 
     Although  FIGS. 6A-6K  shows the changes in playback speeds in discrete steps that are integer multiples of the normal playback speed (e.g., 1×), in some embodiments, the change from one level to the next may be implemented as a gradual change that goes through multiple sub-steps (e.g., as factions speeds 1.2, 1.5, 1.7, 1.9, etc.) or a curved slope in a predetermined transition period (e.g., 2 ms). In some embodiments, the mapping of the multiple sub-steps to the intensity values of the contact is triggered when a modification input (e.g., holding down an “option” key) is detected concurrently with detecting the interaction with the media playback control. 
     In various embodiments, a subset or all of the above control heuristics may be implemented in a particular media player application to control media presentation. 
       FIGS. 7A-7H  illustrate a flow diagram of a method  700  of controlling media presentation in accordance with some embodiments. The method  700  is performed at an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1A ) with a display, a touch-sensitive surface, and one or more sensors to detect intensity of contacts with the touch-sensitive surface. In some embodiments, the display is a touch-screen display and the touch-sensitive surface is on or integrated with the display. In some embodiments, the display is separate from the touch-sensitive surface. Some operations in method  700  are, optionally, combined and/or the order of some operations is, optionally, changed. 
     As described below, the method  700  provides an intuitive way to control playback speed of a media presentation. The method reduces the cognitive burden on a user when changing media playback speed in software applications, thereby creating a more efficient human-machine interface. For battery-operated electronic devices, enabling a user to control media playback faster and more efficiently conserves power and increases the time between battery charges. 
     While presenting media content (e.g., a collection of images in a slideshow, an audio track, a video, or the like) at a first non-zero playback speed, the device detects ( 702 ) a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display (e.g., a fast-forward control). For example, the first playback speed is 1× speed (e.g.,  FIGS. 6E-6H ). In another example, the first playback speed is ≥2× where the user previously performed one or more legacy tap/click operations at the first location that corresponds to the first media control to present the media item at the first playback speed (e.g.,  FIGS. 6I-6K ). 
     In response to detecting the press input: the device determines ( 704 ) whether an intensity of the first contact (e.g., a characteristic intensity) is above a first intensity threshold. In some embodiments, the first intensity threshold corresponds to a predetermined minimum playback speed such as 2×, 5×, or 10× . For example, the user must at least press hard enough to get above the 2× threshold before the playback speed is changed based on intensity. In some embodiments, the intensity of the first contact passes through a plurality of intensities that correspond to intensity thresholds for playback speeds below the current playback speed. 
     In accordance with a determination that the intensity of the first contact is above the first intensity threshold, the device presents the media content at a second playback speed, where the second playback speed is faster than the first non-zero playback speed. In some embodiments, the first intensity threshold is distinct from a detection threshold or an activation intensity threshold, which are lower than the first intensity threshold (e.g., the first intensity threshold is higher than the activation intensity threshold). 
     In accordance with a determination that the intensity of the first contact is below the first intensity threshold, the device maintains presentation of the media content at the first non-zero playback speed. 
     In some embodiments, a contact having an intensity above the activation intensity threshold on the touch-sensitive surface at a location that corresponds to another user interface element besides the first media control initiates an operation that corresponds to the another user interface element. For example, a contact having an intensity above the activation intensity threshold on the touch-sensitive surface at a location that corresponds to a play button initiates provision of the media content at a normal playback speed (e.g., 1×). 
     In some embodiments, the first non-zero playback speed is ( 706 ) a normal playback speed (e.g.,  FIGS. 6E-6H ). In some embodiments, the media content is presented at the default speed in which the media content was captured/generated when played in the normal playback speed (i.e., 1×). 
     In some embodiments, the first non-zero playback speed is ( 708 ) a fast-forward playback speed that is greater than or equal to two times a normal playback speed (e.g.,  FIGS. 6I-6K ). In some embodiments, the first non-zero playback speed is ( 710 ) a rewind playback speed whose magnitude is greater than or equal to two times a normal playback speed. (e.g., 2×, 5×, etc.). 
     In some embodiments, the first intensity threshold corresponds ( 712 ) to a predetermined minimum intensity value. For example, the user must press at least hard enough to get above the intensity threshold that corresponds to the 2×, 5×, or 10× playback speed before the playback speed is changed based on intensity. 
     In some embodiments, the first playback control corresponds ( 714 ) to a fast-forward control (e.g.,  512 ). 
     In some embodiments, the first playback control corresponds ( 716 ) to a rewind control (e.g.,  514 ). 
     In some embodiments, the media content includes ( 718 ) a collection of one or more images, an audio track, and/or a video. 
     In some embodiments, while presenting the media content at the second playback speed, the device detects ( 720 ) a subsequent press input by a second contact distinct from the first contact (e.g., after the first contact by a first finger ends/lifts off, a second contact by the same first finger is detected as part of a second press input) on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display. In response to detecting the subsequent press input, the device determines whether an intensity of the second contact has crossed a second intensity threshold that is above the first intensity threshold. In some embodiments, the intensity of the second contact is deemed to have crossed above the second intensity threshold based on a determination that the intensity of the second contact has changed from below the second intensity threshold to above the second intensity threshold. In some embodiments, while detecting the subsequent press input and before detecting the intensity of the second contact increase above the second intensity threshold, the device detects the intensity of the second contact increase above the first intensity threshold without providing tactile output corresponding to crossing the first intensity threshold. While continuing to detect the second contact on the touch-sensitive surface, and in accordance with a determination that the intensity of the second contact has crossed above the second intensity threshold: the device provides tactile output that corresponds to the second intensity threshold, and presents the media content at a third playback speed greater than the second playback speed. In accordance with a determination that the intensity of the second contact has not crossed above the second intensity threshold, the device foregoes provision of the tactile output that corresponds to the second intensity threshold and continues to present the media content at the second playback speed. In some embodiments, detents are provided upon crossing intensity thresholds that are greater than the one that corresponds to the current playback speed (e.g., the second playback speed) but not when crossing the intensity threshold that corresponds to the current playback speed or any lower speeds. In some embodiments, visual feedback is also provided as the intensity thresholds are crossed that are greater than the threshold that corresponds to the current playback speed. 
     In some embodiments, in response to detecting the press input: the device, in accordance with the determination that the intensity of the first contact is above the first intensity threshold, provides ( 722 ) tactile output that corresponds to the first intensity threshold; and in accordance with the determination that the intensity of the first contact is below the first intensity threshold, the device foregoes provision of the tactile output that corresponds to the first intensity threshold. In some embodiments, detents are provided upon crossing intensity thresholds that are greater than the one that corresponds to the current playback speed (e.g., the first non-zero playback speed) but not when crossing the intensity threshold that corresponds to the current playback speed or any lower speeds. In some embodiments, visual feedback is also provided as the intensity thresholds are crossed that are greater than the one that corresponds to the current playback speed. 
     In some embodiments, while presenting the media content at the second playback speed, the device detects ( 724 ) a subsequent press input by a second contact distinct from the first contact (e.g., after the first contact by a first finger ends/lifts off, a second contact by the same first finger is detected as part of a second press input) on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display. While detecting the subsequent press input, the device detects that an intensity of the second contact has crossed above the first intensity threshold. In response to detecting that the intensity of the second contact has crossed above the first intensity threshold: in accordance with a determination that the first intensity threshold is above a predetermined minimum intensity value (e.g., the predetermined minimum intensity value corresponds to a minimum playback speed for providing tactile output such as 2×, 5×, or 10×), the device provides tactile output that corresponds to the first intensity threshold; and, in accordance with a determination that the first intensity threshold is below the predetermined minimum intensity value, the device foregoes provision of the tactile output that corresponds to the first intensity threshold. 
     While continuing to detect the second contact on the touch-sensitive surface, the device detects ( 726 ) that the intensity of the second contact has crossed above a second intensity threshold that is above the first intensity threshold. In response to detecting that the intensity of the second contact has crossed above the second intensity threshold: in accordance with a determination that the second intensity threshold equals or exceeds the predetermined minimum intensity value, the device provides tactile output that corresponds to the second intensity threshold; and, in accordance with a determination that the second intensity threshold does not equal or exceed the predetermined minimum intensity value, the device foregoes provision of the tactile output that corresponds to the second intensity threshold. For example, detents are provided upon reaching intensity thresholds above and including the predetermined minimum intensity value for a predefined playback speed such as 2×, 5, or 10×. In some embodiments, the predetermined minimum intensity value must be reached before the playback speed is changed based on intensity. In some embodiments, visual feedback is also provided as the intensity increases above the predetermined minimum intensity value. 
     In some embodiments, in response to detecting the press input, and in accordance with the determination that the intensity of the first contact is above the first intensity threshold: in accordance with a determination that the first intensity threshold is above a predetermined minimum intensity value (e.g., the predetermined minimum intensity value corresponds to a minimum playback speed for providing tactile output such as 2×, 5×, or 10×), the device provides ( 728 ) tactile output that corresponds to the first intensity threshold; and, in accordance with a determination that the first intensity threshold is below the predetermined minimum intensity value, the device foregoes provision of the tactile output that corresponds to the first intensity threshold. For example, detents are provided upon reaching intensity thresholds above and including the predetermined minimum intensity value for a predefined playback speed such as 2×, 5×, or 10× . In some embodiments, the predetermined minimum intensity value must be reached before the playback speed is changed based on intensity. In some embodiments, visual feedback is also provided as the intensity increases above the predetermined minimum intensity value. 
     In some embodiments, while presenting the media content at the second playback speed, and while continuing to detect the first contact on the touch-sensitive surface: the device detects ( 730 ) that the intensity of the first contact is above a second intensity threshold distinct from the first intensity threshold. In some embodiments, the second intensity threshold has a pressure or force threshold higher than a pressure or force threshold in the first intensity threshold. In response to detecting that the intensity of the first contact is above the second intensity threshold, the device presents the media content at a third playback speed, where the third playback speed is faster than the second playback speed. In some embodiments, the playback speeds include 0×, 1×, 2×, 5×, 10×, 30×, and 60×. For example, the first playback speed is 1×, the second playback speed is 10×, and the third playback speed is 30×. 
     In some embodiments, while presenting the media content at the third playback speed, and while continuing to detect the first contact on the touch-sensitive surface, the device detects ( 732 ) that the intensity of the first contact has crossed below the second intensity threshold. In response to detecting that the intensity of the first contact has crossed below the second intensity threshold: the device provides tactile output that corresponds to the second intensity threshold and presents the media content at the second playback speed. In some embodiments, the intensity of the first contact is deemed to have crossed below the second intensity threshold based on a determination that the intensity of the first contact has changed from being above the second intensity threshold to being below the second intensity threshold. While presenting the media content at the second playback speed, and while continuing to detect the first contact on the touch-sensitive surface, the device detects that the intensity of the first contact has crossed below the first intensity threshold. In response to detecting that the intensity of the first contact has crossed below the first intensity threshold: the device provides tactile output that corresponds to the first intensity threshold and presents the media content at a fourth playback speed. For example, the playback speed is reduced and detents are provided as the intensity crosses below each intensity threshold. 
     In some embodiments, while presenting the media content at the second playback speed, the device detects ( 734 ) a subsequent press input by a second contact distinct from the first contact (e.g., after the first contact by a first finger ends/lifts off, a second contact by the same first finger is detected as part of a second press input) on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display. While detecting the subsequent press input: the device determines whether an intensity of the second contact has not crossed above a second intensity threshold that is above the first intensity threshold; and, subsequent to a determination that the intensity of the second contact has not crossed above the second intensity threshold: the device detects that the intensity of the second contact has crossed below the first intensity threshold; and, in response to detecting that the intensity of the second contact has crossed below the first intensity threshold, the device foregoes provision of a tactile output that corresponds to the first intensity threshold. 
     In some embodiments, while presenting the media content at the second playback speed, and while continuing to detect the first contact on the touch-sensitive surface, the device detects ( 736 ) that the intensity of the first contact is below the first intensity threshold. In one example, lift-off of the first contact is detected. In another example, the intensity of the first contact falls below first intensity threshold but lift-off is not detected. In response to detecting that the intensity of the first contact is below the first intensity threshold, the device presents the media content at a fourth playback speed. 
     In some embodiments, the fourth playback speed is ( 738 ) the second playback speed. For example, provision of the media content at the second playback speed is maintained. In some embodiments, actuation of a modifier key is required to lock in a higher playback speed. 
     In some embodiments, the fourth playback speed is ( 740 ) the first non-zero playback speed. For example, the playback speed is reduced from the second playback speed. In some embodiments, the playback speed tracks the intensity of the contact, so that as the intensity of the contact decreases from an intensity above the first intensity threshold to an intensity below the first intensity threshold, the playback speed is adjusted through a plurality of levels that are mapped to different contact intensities. 
     In some embodiments, the fourth playback speed is ( 742 ) a normal playback speed. In some embodiments, the media content is presented at the default speed in which that the media content was captured/generated when played in the normal playback speed (i.e., 1×). In some embodiments, in the fourth playback speed (e.g., 0×), a still image that corresponds to the media content is presented. For example, in the 0× playback speed, the media content is paused. 
     In some embodiments, while presenting a still image that corresponds to the media content, (i.e., 0× playback speed), the device detects ( 744 ) a subsequent press input by a second contact distinct from the first contact (e.g., after the first contact by a first finger ends/lifts off, a second contact by the same first finger is detected as part of a second press input) on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display. In some embodiments, the media content is paused when played in the 0× playback speed. In some embodiments, provision of the media content is paused in response to a user activation (e.g., using a touch input) of a pause button in the user interface. In response to detecting the subsequent press input: the device determines whether an intensity of the second contact (e.g., a characteristic intensity) is above the first intensity threshold. In accordance with a determination that the intensity of the second contact (e.g., characteristic intensity) is above the first intensity threshold, the device presents the media content at the second playback speed. In accordance with a determination that the intensity of the second contact is below the first intensity threshold, the device increases the playback speed of the media content from the still image up to the second playback speed according to the intensity of the second contact. For example, the fast-forward control operates like a gas pedal whereby the playback speed increases from 0× to 2× before the intensity of the second contact crosses the first intensity threshold. Alternatively, in some embodiments, the electronic device maintains presentation of the still image corresponding to the media content until the intensity of the second contact crosses the first intensity threshold (e.g., a jump from 0× to 2×). 
     In some embodiments, while presenting the media content at a normal playback speed (e.g., 1×), the device detects ( 746 ) a subsequent press input by a second contact distinct from the first contact (e.g., after the first contact by a first finger ends/lifts off, a second contact by the same first finger is detected as part of a second press input) on the touch-sensitive surface that corresponds to the focus selector at a second location of a second media control (e.g., the play control) on the display, wherein the second playback control is distinct from the first playback control. The device determines whether the intensity of the second contact (e.g., characteristic intensity) is above the first intensity threshold. In accordance with a determination that the intensity of the second contact is above the first intensity threshold, the device presents the media content at a first fractional playback speed, wherein the first fractional playback speed is faster than the normal playback speed and less than two times the normal playback speed. In accordance with a determination that the intensity of the second contact is below the first intensity threshold, the device maintains presentation of the media content at the normal playback speed. In some embodiments, the fractional playback speeds include 1.1×, 1.2×, 1.5×, and 1.7×. Alternatively, in some embodiments, the fractional playback speeds are accessed in response to detecting a press input at a location corresponding to the first playback control in addition to detecting activation of a modifier key (e.g., the option key). 
     In some embodiments, while continuing to detect the second contact on the touch-sensitive surface: the device detects ( 748 ) that the intensity of the second contact is above a second intensity threshold distinct from the first intensity threshold. In response to detecting that the intensity of the second contact is above the second intensity threshold, the device presents the media content at a second fractional playback speed, wherein the second fractional playback speed is faster than the first fractional playback speed and less than two times the normal playback speed. 
     In some embodiments, in response to detecting the subsequent press input, the device displays ( 750 ) a fractional playback scrubber at least partially overlaid on the second playback control that indicates a current playback speed of the media content. In some embodiments, the fractional playback scrubber is adjacent to but not overlaid on the second playback control. In some embodiments, detents are provided when crossing above all intensity thresholds over a predetermined minimum intensity value. In some embodiments, detents are provided when crossing below all intensity thresholds. 
     In some embodiments, the second playback control corresponds ( 752 ) to at least one of: a play control and a pause control. 
     It should be understood that the particular order in which the operations in  FIGS. 7A-7H  have been described is merely exemplary and is not intended to indicate that the described order is the only order in which the operations could be performed. One of ordinary skill in the art would recognize various ways to reorder the operations described herein. Additionally, it should be noted that details of other processes described herein with respect to other methods described herein (e.g., method  800 ) are also applicable in an analogous manner to method  700  described above with respect to  FIGS. 7A-7H . For example, the contacts, gestures, press input, user interface objects, tactile outputs, intensity thresholds, focus selectors, and playback speeds described above with reference to method  700  optionally have one or more of the characteristics of the contacts, gestures, press input, user interface objects, tactile outputs, intensity thresholds, focus selectors, playback speeds described herein with reference to other methods described herein (e.g., method  800 ). For brevity, these details are not repeated here. 
       FIGS. 8A-8C  illustrate a flow diagram of a method  800  of controlling media presentation in accordance with some embodiments. The method  800  is performed at an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1A ) with a display, a touch-sensitive surface, and one or more sensors to detect intensity of contacts with the touch-sensitive surface. In some embodiments, the display is a touch-screen display and the touch-sensitive surface is on or integrated with the display. In some embodiments, the display is separate from the touch-sensitive surface. Some operations in method  800  are, optionally, combined and/or the order of some operations is, optionally, changed. 
     As described below, the method  800  provides an intuitive way to control playback speed of media presentation. The method reduces the cognitive burden on a user when changing media playback speed in software applications, thereby creating a more efficient human-machine interface. For battery-operated electronic devices, enabling a user to control media playback faster and more efficiently conserves power and increases the time between battery charges. 
     In some embodiments, while presenting media content (e.g., a collection of images in a slideshow, an audio track, a video, or the like) at a first speed, the device detects ( 802 ) a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display (e.g., a fast-forward control). In some embodiments, the first speed is not a fast-forward speed. For example, the first speed is 0× speed (e.g., paused) or 1× speed (e.g., normal playback). 
     In response to detecting the press input by the first contact: the device determines ( 804 ) whether a first intensity of the first contact (e.g., a characteristic intensity) has satisfied a first intensity threshold (e.g., an activation intensity threshold). In some embodiments, the first intensity threshold is an activation intensity threshold for a first intensity stage. Subsequent to determining whether the first intensity of the first contact has satisfied the first intensity threshold (e.g., an activation intensity threshold), the device determines whether the first contact continues to satisfy a second intensity threshold (e.g., remaining above a release intensity threshold) during a predefined time interval (e.g., before a lock time threshold is reached). In some embodiments, the second intensity threshold is a release intensity threshold for the first intensity stage. 
     In accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, the device presents the media content at a first fast-forward speed that is higher than the first speed as long as the first contact satisfies the second intensity threshold (e.g., as shown in  FIGS. 6B and 6F , where the higher speed is not locked in at the end of the press input). 
     In accordance with determining that the intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval (e.g., the first contact is lifted off or the intensity of the first contact falls below the second intensity threshold during the predefined time interval), the device presents the media content at the first fast-forward speed (e.g., even though the first contact is no longer detected on the touch-sensitive surface) (e.g., as shown in  FIGS. 6A and 6E , where the higher speed is locked in). 
     In some embodiments, the first intensity threshold is ( 806 ) higher than the second intensity threshold (e.g., the activation intensity threshold for the first fast forward speed may be higher than the release intensity threshold for the first fast forward speed). In some embodiments, the first intensity threshold is identical to the second intensity threshold. 
     In some embodiments, while presenting the media content at the first fast-forward speed (e.g., 2×) in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, the device detects ( 808 ) a second intensity of the first contact that does not satisfy the second intensity threshold subsequent to the predefined time interval (e.g., as shown in  FIG. 6B and 6F , where the intensity of the press input falls below the release intensity threshold for 2× after the lock time threshold has expired). In response to detecting the second intensity of the first contact that does not satisfy the second intensity threshold subsequent to the predefined time interval, the device ceases to present the media content at the first fast-forward speed (e.g., as shown in  FIG. 6B and 6F , where the playback speed is returned to the initial playback speed when the contact intensity crosses the release intensity threshold associated with the first fast forward speed of 2×). In some embodiments, ceasing to present the media content at the first fast-forward speed includes presenting the media content at the first speed. In some embodiments, ceasing to present the media content at the first fast-forward speed includes presenting the media content at a normal playback speed (e.g., as shown in  FIG. 6F  where the final speed is 1×). In some embodiments, ceasing to present the media content at the first fast-forward speed includes presenting a still image of the media content (e.g., paused state and/or 0× speed) (e.g., as shown in  FIG. 6B  where the final speed is 0×). 
     In some embodiments, while presenting the media content at the first fast-forward speed (e.g., 2×) in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval, the device detects ( 810 ) a press input by a second contact on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display. In some embodiments, the second contact is distinct and separate from the first contact. The device determines whether a first intensity of the second contact (e.g., a characteristic intensity) has satisfied the first intensity threshold (e.g., an activation intensity threshold). Subsequent to determining whether the first intensity of the second contact has satisfied the first intensity threshold (e.g., an activation intensity threshold), the device determines whether the second contact satisfies the second intensity threshold (e.g., remaining above a release intensity threshold). In accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold (e.g., I LA ) and subsequently determining that the second contact does not satisfy the second intensity threshold (e.g., I LR  ), the device presents the media content at a second fast-forward speed (e.g., 5×) that is higher than the first fast-forward speed (e.g., 2×). This is illustrated in  FIG. 6I , for example, after the intensity of the press input has risen above I LA , reached a peak, and then fallen to a point just below I LR  , the playback speed is increased to 5×. 
     In some embodiments, in response to detecting the press input by the second contact, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold (e.g., I LA ) and subsequently determining that the second contact satisfies the second intensity threshold (e.g., I LR  ), the device presents ( 812 ) the media content at the first fast-forward speed while the second contact satisfies the second intensity threshold. This is illustrated in  FIG. 6I , for example, where, after the intensity of the press input has risen above I LA , and remains above I LR  , the playback speed remains at 2×, and does not increase to 5× until the intensity falls to a point below I LR  . 
     In some embodiments, in response to detecting the press input by the second contact, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact satisfies the second intensity threshold, the device visually distinguishes ( 814 ) the first media control on the display while the second contact satisfies the second intensity threshold. In some embodiments, the visual distinction indicates that the second contact satisfies the second intensity threshold. For example, in  FIG. 6I , during the period of time after the intensity of the press input has risen above I LA , reached a peak, and then fallen to a point just above I LR  , the playback speed remains at 2×, but the media control being activated by the press input is optionally highlighted to indicate that the activation intensity threshold for the next higher play speed has been achieved, and that ceasing the press input now would cause an increase in the playback speed and subsequent locking in of the increased playback speed. 
     In some embodiments, while presenting the media content at the first fast-forward speed (e.g., 2×) in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval and while continuing to detect the first contact on the touch-sensitive surface, the device detects ( 816 ) a second intensity of the first contact that satisfies a third intensity threshold (e.g., I 5×A ) that is higher than the first intensity threshold (e.g., I 2×A ). In some embodiments, the third intensity threshold is an activation intensity threshold for the second intensity stage (e.g., 5×). In response to detecting the second intensity of the first contact, the device presents the media content at the second fast-forward speed (e.g., 5×) that is higher than the first fast-forward speed (e.g., 2×). This is illustrated in  FIG. 6J , where a deep press meeting I 5×A  causes the playback speed to increase from 2× to 5×. 
     In some embodiments, while presenting the media content at the second fast-forward speed (e.g., 5×) and while continuing to detect the first contact on the touch-sensitive surface, the device detects ( 818 ) a third intensity of the first contact that does not satisfy a fourth intensity threshold (e.g., I 5×R ). In some embodiments, the fourth intensity threshold is a release intensity threshold for the second intensity stage. In some embodiments, the fourth intensity threshold is identical to the third intensity threshold. In some embodiments, the fourth intensity threshold is distinct from the third intensity threshold. In response to detecting the third intensity of the first contact, the device presents the media content at the first fast-forward speed. This is illustrated in  FIG. 6J , where after the intensity of the deep press input falls below the release intensity threshold I 5×R  , the previously achieved higher playback speed 5× is reduced to 2× again. 
     It should be understood that the particular order in which the operations in  FIGS. 8A-8C  have been described is merely exemplary and is not intended to indicate that the described order is the only order in which the operations could be performed. One of ordinary skill in the art would recognize various ways to reorder the operations described herein. Additionally, it should be noted that details of other processes described herein with respect to other methods described herein (e.g., method  700 ) are also applicable in an analogous manner to method  800  described above with respect to  FIGS. 8A-8C . For example, the contacts, gestures, press input, user interface objects, tactile outputs, intensity thresholds, focus selectors, and playback speeds described above with reference to method  800  optionally have one or more of the characteristics of the contacts, gestures, press input, user interface objects, tactile outputs, intensity thresholds, focus selectors, playback speeds described herein with reference to other methods described herein (e.g., method  700 ). For brevity, these details are not repeated here. 
     In accordance with some embodiments,  FIG. 9  shows a functional block diagram of an electronic device  900  configured in accordance with the principles of the various described embodiments. The functional blocks of the device are, optionally, implemented by hardware, software, firmware, or a combination thereof to carry out the principles of the various described embodiments. It is understood by persons of skill in the art that the functional blocks described in  FIG. 9  are, optionally, combined or separated into sub-blocks to implement the principles of the various described embodiments. Therefore, the description herein optionally supports any possible combination or separation or further definition of the functional blocks described herein. 
     As shown in  FIG. 9 , an electronic device  900  includes a display unit  902  configured to display a user interface, a touch-sensitive surface unit  904  configured to receive contacts, one or more sensor units  906  configured to detect intensity of contacts with the touch-sensitive surface unit  904 ; and a processing unit  910  coupled with the display unit  902 , the touch-sensitive surface unit  904  and the one or more sensor units  906 . In some embodiments, the processing unit  910  includes: a detecting unit  912 , a determining unit  914 , a presenting unit  916 , a maintaining unit  918 , a providing unit  920 , and an increasing unit  922 . 
     The processing unit  910  is configured to: while presenting media content at a first non-zero playback speed, detect a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display (e.g., with the detecting unit  912 ); and, in response to detecting the press input: determine whether an intensity of the first contact is above a first intensity threshold (e.g., with the determining unit  914 ); in accordance with a determination that the intensity of the first contact is above the first intensity threshold, present the media content at a second playback speed (e.g., with the presenting unit  916 ), wherein the second playback speed is faster than the first non-zero playback speed; and, in accordance with a determination that the intensity of the first contact is below the first intensity threshold, maintain presentation of the media content at the first non-zero playback speed (e.g., with the maintaining unit  918 ). 
     In some embodiments, the first non-zero playback speed is a normal playback speed. 
     In some embodiments, the first non-zero playback speed is a fast-forward playback speed that is greater than or equal to two times a normal playback speed. 
     In some embodiments, the first non-zero playback speed is a rewind playback speed whose magnitude is greater than or equal to two times a normal playback speed. 
     In some embodiments, the first intensity threshold corresponds to a predetermined minimum intensity value. 
     In some embodiments, the first playback control corresponds to a fast-forward control. 
     In some embodiments, the first playback control corresponds to a rewind control. 
     In some embodiments, the media content includes a collection of one or more images, an audio track, and/or a video. 
     In some embodiments, the processing unit  910  is further configured to: while presenting the media content at the second playback speed, detect a subsequent press input by a second contact distinct from the first contact on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display (e.g., with the detecting unit  912 ); in response to detecting the subsequent press input, determine whether an intensity of the second contact has crossed a second intensity threshold that is above the first intensity threshold (e.g., with the determining unit  914 ); while continuing to detect the second contact on the touch-sensitive surface, and in accordance with a determination that the intensity of the second contact has crossed above the second intensity threshold: provide tactile output that corresponds to the second intensity threshold (e.g., with the providing unit  920 ); and present the media content at a third playback speed greater than the second playback speed (e.g., with the presenting unit  916 ); and, in accordance with a determination that the intensity of the second contact has not crossed above the second intensity threshold, forego provision of the tactile output that corresponds to the second intensity threshold and continuing to present the media content at the second playback speed (e.g., with the providing unit  924 ). 
     In some embodiments, the processing unit  910  is further configured to: in response to detecting the press input: in accordance with the determination that the intensity of the first contact is above the first intensity threshold, provide tactile output that corresponds to the first intensity threshold (e.g., with the providing unit  920 ); and, in accordance with the determination that the intensity of the first contact is below the first intensity threshold, forego provision of the tactile output that corresponds to the first intensity threshold (e.g., with the providing unit  920 ). 
     In some embodiments, the processing unit  910  is further configured to: while presenting the media content at the second playback speed, detect a subsequent press input by a second contact distinct from the first contact on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display (e.g., with the detecting unit  912 ); in response to detecting the subsequent press input, detect that an intensity of the second contact has crossed above the first intensity threshold (e.g., with the detecting unit  912 ); in response to detecting that the intensity of the second contact has crossed above the first intensity threshold: in accordance with a determination that the first intensity threshold is above a predetermined minimum intensity value, provide tactile output that corresponds to the first intensity threshold (e.g., with the providing unit  920 ); and, in accordance with a determination that the first intensity threshold is below the predetermined minimum intensity value, forego provision of the tactile output that corresponds to the first intensity threshold (e.g., with the providing unit  920 ); and, while continuing to detect the second contact on the touch-sensitive surface, detect that the intensity of the second contact has crossed above a second intensity threshold that is above the first intensity threshold (e.g., with the detecting unit  912 ): in response to detecting that the intensity of the second contact has crossed above the second intensity threshold: in accordance with a determination that the second intensity threshold equals or exceeds the predetermined minimum intensity value, provide tactile output that corresponds to the second intensity threshold (e.g., with the providing unit  920 ); and, in accordance with a determination that the second intensity threshold does not equal or exceed the predetermined minimum intensity value, forego provision of the tactile output that corresponds to the second intensity threshold (e.g., with the providing unit  920 ). 
     In some embodiments, the processing unit  910  is further configured to: in response to detecting the press input, and in accordance with the determination that the intensity of the first contact is above the first intensity threshold: in accordance with a determination that the first intensity threshold is above a predetermined minimum intensity value, provide tactile output that corresponds to the first intensity threshold (e.g., with the providing unit  920 ); and, in accordance with a determination that the first intensity threshold is below the predetermined minimum intensity value, forego provision of the tactile output that corresponds to the first intensity threshold (e.g., with the providing unit  920 ). 
     In some embodiments, the processing unit  910  is further configured to: while presenting the media content at the second playback speed, and while continuing to detect the first contact on the touch-sensitive surface: detect that the intensity of the first contact is above a second intensity threshold distinct from the first intensity threshold (e.g., with the detecting unit  912 ); and, in response to detecting that the intensity of the first contact is above the second intensity threshold, present the media content at a third playback speed, wherein the third playback speed is faster than the second playback speed (e.g., with the presenting unit  912 ). 
     In some embodiments, the processing unit  910  is further configured to: while presenting the media content at the third playback speed, and while continuing to detect the first contact on the touch-sensitive surface, detect that the intensity of the first contact has crossed below the second intensity threshold (e.g., with the detecting unit  912 ); in response to detecting that the intensity of the first contact has crossed below the second intensity threshold: provide tactile output that corresponds to the second intensity threshold (e.g., with the providing unit  920 ); and present the media content at the second playback speed (e.g., with the presenting unit  916 ); and, while presenting the media content at the second playback speed, and while continuing to detect the first contact on the touch-sensitive surface, detect that the intensity of the first contact has crossed below the first intensity threshold (e.g., with the detecting unit  912 ); in response to detecting that the intensity of the first contact has crossed below the first intensity threshold: provide tactile output that corresponds to the first intensity threshold (e.g., with the providing unit  920 ); and present the media content at a fourth playback speed (e.g., with the presenting unit  916 ). 
     In some embodiments, the processing unit  910  is further configured to: while presenting the media content at the second playback speed, detect a subsequent press input by a second contact distinct from the first contact on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display (e.g., with the detecting unit  912 ); and while detecting the subsequent press input: determine whether an intensity of the second contact has not crossed above a second intensity threshold that is above the first intensity threshold (e.g., with the determining unit  914 ); and, subsequent to a determination that the intensity of the second contact has not crossed above the second intensity threshold: detect that the intensity of the second contact has crossed below the first intensity threshold (e.g., with the detecting unit  912 ); and, in response to detecting that the intensity of the second contact has crossed below the first intensity threshold, forego provision of a tactile output that corresponds to the first intensity threshold (e.g., with the providing unit  920 ). 
     In some embodiments, the processing unit  910  is further configured to: while presenting the media content at the second playback speed, and while continuing to detect the first contact on the touch-sensitive surface, detect that the intensity of the first contact is below the first intensity threshold (e.g., with the detecting unit  912 ); and, in response to detecting that the intensity of the first contact is below the first intensity threshold, present the media content at a fourth playback speed (e.g., with the presenting unit  914 ). 
     In some embodiments, the fourth playback speed is the second playback speed. 
     In some embodiments, the fourth playback speed is the first non-zero playback speed. 
     In some embodiments, the fourth playback speed is a normal playback speed. 
     In some embodiments, the processing unit  910  is further configured to: while presenting a still image that corresponds to the media content, detect a subsequent press input by a second contact distinct from the first contact on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display (e.g., with the detecting unit  912 ); and, in response to detecting the subsequent press input: determine whether an intensity of the second contact is above the first intensity threshold (e.g., with the determining unit  914 ); in accordance with a determination that the intensity of the second contact is above the first intensity threshold, present the media content at the second playback speed (e.g., with the presenting unit  916 ); and, in accordance with a determination that the intensity of the second contact is below the first intensity threshold, increase the playback speed of the media content from the still image up to the second playback speed according to the intensity of the second contact (e.g., with the increasing unit  922 ). 
     In some embodiments, the processing unit  910  is further configured to: while presenting the media content at a normal playback speed , detect a subsequent press input by a second contact distinct from the first contact on the touch-sensitive surface that corresponds to the focus selector at a second location of a second media control on the display (e.g., with the detecting unit  912 ), wherein the second playback control is distinct from the first playback control; and, in response to detecting the subsequent press input: determine whether the intensity of the second contact is above the first intensity threshold (e.g., with the determining unit  914 ); in accordance with a determination that the intensity of the second contact is above the first intensity threshold, present the media content at a first fractional playback speed, wherein the first fractional playback speed is faster than the normal playback speed and less than two times the normal playback speed (e.g., with the presenting unit  916 ); and, in accordance with a determination that the intensity of the second contact is below the first intensity threshold, maintain presentation of the media content at the normal playback speed (e.g., with the maintaining unit  918 ). 
     In some embodiments, the processing unit  910  is further configured to: while continuing to detect the second contact on the touch-sensitive surface: detect that the intensity of the second contact is above a second intensity threshold distinct from the first intensity threshold (e.g., with the detecting unit  912 ); and, in response to detecting that the intensity of the second contact is above the second intensity threshold, present the media content at a second fractional playback speed (e.g., with the presenting unit  916 ), wherein the second fractional playback speed is faster than the first fractional playback speed and less than two times the normal playback speed. 
     In some embodiments, the processing unit  910  is further configured to: in response to detecting the subsequent press input, display a fractional playback scrubber at least partially overlaid on the second playback control that indicates a current playback speed of the media content (e.g., with the display unit  902 ). 
     In some embodiments, the second playback control corresponds to at least one of: a play control and a pause control. 
     In accordance with some embodiments,  FIG. 10  shows a functional block diagram of an electronic device  1000  configured in accordance with the principles of the various described embodiments. The functional blocks of the device are, optionally, implemented by hardware, software, firmware, or a combination thereof to carry out the principles of the various described embodiments. It is understood by persons of skill in the art that the functional blocks described in  FIG. 10  are, optionally, combined or separated into sub-blocks to implement the principles of the various described embodiments. Therefore, the description herein optionally supports any possible combination or separation or further definition of the functional blocks described herein. 
     As shown in  FIG. 10 , an electronic device  1000  includes a display unit  1002  configured to display a user interface, a touch-sensitive surface unit  1004  configured to receive contacts, one or more sensor units  1006  configured to detect intensity of contacts with the touch-sensitive surface unit  1004 ; and a processing unit  1010  coupled with the display unit  1002 , the touch-sensitive surface unit  1004  and the one or more sensor units  1006 . In some embodiments, the processing unit  1010  includes: a detecting unit  1012 , a determining unit  1014 , a presenting unit  1016 , a ceasing unit  1018 , and a distinguishing unit  1020 . 
     The processing unit  1010  is configured to: while presenting media content at a first speed, detect a press input by a first contact on the touch-sensitive surface that corresponds to a focus selector at a first location of a first media control on the display (e.g., with the detecting unit  1012 ); and, in response to detecting the press input by the first contact: determine whether a first intensity of the first contact has satisfied a first intensity threshold (e.g., with the determining unit  1014 ); subsequent to determining whether the first intensity of the first contact has satisfied the first intensity threshold, determine whether the first contact continues to satisfy a second intensity threshold during a predefined time interval (e.g., with the determining unit  1014 ); in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, present the media content at a first fast-forward speed that is higher than the first speed as long as the first contact satisfies the second intensity threshold (e.g., with the presenting unit  1016 ); and, in accordance with determining that the intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval, present the media content at the first fast-forward speed (e.g., with the presenting unit  1016 ). 
     In some embodiments, the first intensity threshold is higher than the second intensity threshold. 
     In some embodiments, the processing unit  1010  is further configured to: while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval, detect a second intensity of the first contact that does not satisfy the second intensity threshold subsequent to the predefined time interval (e.g., with the detecting unit  1012 ); and, in response to detecting the second intensity of the first contact that does not satisfy the second intensity threshold subsequent to the predefined time interval, cease to present the media content at the first fast-forward speed (e.g., with the ceasing unit  1018 ). 
     In some embodiments, the processing unit  1010  is further configured to: while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact does not continue to satisfy the second intensity threshold during the predefined time interval, detect a press input by a second contact on the touch-sensitive surface that corresponds to the focus selector at the first location of the first media control on the display (e.g., with the detecting unit  1012 ); determine whether a first intensity of the second contact has satisfied the first intensity threshold (e.g., with the determining unit  1014 ); subsequent to determining whether the first intensity of the second contact has satisfied the first intensity threshold, determine whether the second contact satisfies the second intensity threshold (e.g., with the determining unit  1014 ); and, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact does not satisfy the second intensity threshold, present the media content at a second fast-forward speed that is higher than the first fast-forward speed (e.g., with the presenting unit  1016 ). 
     In some embodiments, the processing unit  1010  is further configured to: in response to detecting the press input by the second contact, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact satisfies the second intensity threshold, present the media content at the first fast-forward speed while the second contact satisfies the second intensity threshold (e.g., with the presenting unit  1016 ). 
     In some embodiments, the processing unit  1010  is further configured to: in response to detecting the press input by the second contact, in accordance with determining that the first intensity of the second contact has satisfied the first intensity threshold and subsequently determining that the second contact satisfies the second intensity threshold, visually distinguish the first media control on the display while the second contact satisfies the second intensity threshold (e.g., with the distinguishing unit  1020 ). 
     In some embodiments, the processing unit  1010  is further configured to: while presenting the media content at the first fast-forward speed in accordance with determining that the first intensity of the first contact has satisfied the first intensity threshold and determining that the first contact continues to satisfy the second intensity threshold during the predefined time interval and while continuing to detect the first contact on the touch-sensitive surface, detect a second intensity of the first contact that satisfies a third intensity threshold that is higher than the first intensity threshold (e.g., with the detecting unit  1012 ); and, in response to detecting the second intensity of the first contact, present the media content at the second fast-forward speed that is higher than the first fast-forward speed (e.g., with the presenting unit  1016 ). 
     In some embodiments, the processing unit  1012  is further configured to: while presenting the media content at the second fast-forward speed and while continuing to detect the first contact on the touch-sensitive surface, detect a third intensity of the first contact that does not satisfy a fourth intensity threshold (e.g., with the detecting unit  1012 ); and, in response to detecting the third intensity of the first contact, present the media content at the first fast-forward speed (e.g., with the presenting unit  1016 ). 
     The operations in the information processing methods described above are, optionally implemented by running one or more functional modules in information processing apparatus such as general purpose processors (e.g., as described above with respect to  FIGS. 1A and 3 ) or application specific chips. 
     The operations described above with reference to  FIGS. 7A-7H and 8A-8C  are, optionally, implemented by components depicted in  FIGS. 1A-1B  or  FIGS. 9 and 10 . For example, detection operation  702 , and determination and presentation operations  704  are, optionally, implemented by event sorter  170 , event recognizer  180 , and event handler  190 . Event monitor  171  in event sorter  170  detects a contact on touch-sensitive display  112 , and event dispatcher module  174  delivers the event information to application  136 - 1 . A respective event recognizer  180  of application  136 - 1  compares the event information to respective event definitions  186 , and determines whether a first contact at a first location on the touch-sensitive surface (or whether rotation of the device) corresponds to a predefined event or sub-event, such as selection of an object on a user interface, or rotation of the device from one orientation to another. When a respective predefined event or sub-event is detected, event recognizer  180  activates an event handler  190  associated with the detection of the event or sub-event. Event handler  190  optionally uses or calls data updater  176  or object updater  177  to update the application internal state  192 . In some embodiments, event handler  190  accesses a respective GUI updater  178  to update what is displayed by the application. Similarly, it would be clear to a person having ordinary skill in the art how other processes can be implemented based on the components depicted in  FIGS. 1A-1B . 
     The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best use the invention and various described embodiments with various modifications as are suited to the particular use contemplated.

Metadata:
Filing Date: 20180813
Publication Date: 20200407
Grant Date: 20200407
Priority Date: 20150308
Inventors: FLINT, GARY
HAFENEGER, STEFAN
Assignee: APPLE INC
CPC Classifications: [{"code": "G06F3/0488", "inventive": true, "first": false, "tree": "[]"}, {"code": "G11B27/005", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/165", "inventive": true, "first": false, "tree": "[]"}, {"code": "G11B27/005", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/04847", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/04847", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/04883", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0481", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/47217", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/04883", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/47217", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/016", "inventive": true, "first": true, "tree": "[]"}, {"code": "G06F3/0416", "inventive": true, "first": true, "tree": "[]"}, {"code": "G06F3/04883", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/04847", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/016", "inventive": true, "first": true, "tree": "[]"}, {"code": "G06F3/016", "inventive": true, "first": true, "tree": "[]"}, {"code": "G06F3/04883", "inventive": true, "first": false, "tree": "[]"}, {"code": "G11B27/005", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/47217", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/165", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0488", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/04847", "inventive": true, "first": false, "tree": "[]"}]
Family ID: 55447176