Patent Publication Number: US-2022232289-A1

Title: Crowdsourcing Supplemental Content

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. application Ser. No. 13/671,626, filed Nov. 8, 2012, the disclosure of which is hereby incorporated by reference in its entirety. 
    
    
     BACKGROUND 
     Television viewing is no longer the static, isolated, passive pastime that it used to be. Today, viewers have the option of using a computing device, such as a tablet computer, to view a webpage related to a show they are watching, thereby keeping the viewers engaged in a particular program. The related content, however, requires significant amounts of data related to the show to keep the viewers interested. There remains a need to efficiently gather and provide related information of interest. 
     SUMMARY 
     Some of the various features described herein may facilitate acquiring data, such as metadata, and associating the metadata with content. In particular, some of the systems described below allow users to supply metadata related to the content they are consuming using their own user devices. 
     In accordance with aspects of the disclosure, users, such as subscribers or ordinary consumers (e.g., the “crowd”), may be leveraged to generate and organize metadata content for enhancing consumption of primary content. In an illustrative embodiment, the disclosure teaches a method comprising streaming content to one or more users. While the content is delivered to a first screen device (e.g., a television, computer monitor, mobile device, etc.), users may generate submissions using second screen devices (e.g., smartphones, laptops, tablets, etc.). The submissions, e.g., tag submissions, may include data (which may be made into metadata) relevant to the content. The data may also include information identifying a time point in the content to which the data applies. The tag submissions may be transmitted to another device, which may generate metadata tags using the received tag submissions. Subsequently, the metadata tags may be supplied to second screen devices. Additionally, some aspects of the disclosure relate to computing devices, having a processor and memory storing computer-executable instructions, and other apparatuses to perform the above steps and other steps for improving a second screen experience. 
     Other details and features will also be described in the sections that follow. This summary is not intended to identify critical or essential features of the inventions claimed herein, but instead merely summarizes certain features and variations thereof. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Some features herein are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar elements. 
         FIG. 1  illustrates an example communication network on which various features described herein may be used. 
         FIG. 2  illustrates an example computing device and software configuration that can be used to implement any of the methods, servers, entities, and computing devices described herein. 
         FIG. 3  illustrates a system architecture according to one or more illustrative aspects described herein. 
         FIGS. 4A-4H  are diagrams illustrating an example embodiment of aspects of the present disclosure. 
         FIG. 5  is a flow diagram illustrating an example method according to one or more aspects of the disclosure. 
         FIG. 6  is a flow diagram illustrating an example method according to one or more aspects of the disclosure. 
         FIG. 7  is a flow diagram illustrating an example method according to one or more aspects of the disclosure. 
         FIG. 8  is a diagram illustrating an example embodiment according to one or more aspects of the disclosure. 
         FIG. 9  is a diagram illustrating another example embodiment according to one or more aspects of the disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     In the following description of various illustrative embodiments, reference is made to the accompanying drawings, which form a part hereof, and in which is shown, by way of illustration, various embodiments in which aspects of the disclosure may be practiced. It is to be understood that other embodiments may be utilized, and structural and functional modifications may be made, without departing from the scope of the present disclosure. 
     By way of introduction, some features described herein may allow a user to consume content (e.g., audio visual content such as a television program) on one device (e.g., a television, smartphone, tablet, laptop, etc.) and generate metadata associated with the content using a second device (e.g., a television, smartphone, tablet, laptop, etc.). In one example, a smartphone may be adapted to automatically detect/identify the content that a user is consuming from the audio associated with that content, and may allow a user to submit data to be associated with the content. Further, there may be a system that allows many users to contribute various types of data for the same content. Thus, when other users subsequently consume the content (e.g., television programs, music videos, live events, home videos, etc.), the other users may access the data, including any associated information such as webpages, using their smartphones or other devices. Accordingly, an aspect of the present disclosure is to crowdsource the creation of metadata. 
       FIG. 1  illustrates an example communication network  100  on which many of the various features described herein, such as the requesting and retrieval of content and metadata and/or the delivery of metadata to a central database, may be implemented. Network  100  may be any type of information distribution network, such as satellite, telephone, cellular, wireless, etc. One example may be an optical fiber network, a coaxial cable network, or a hybrid fiber/coax distribution network. Such networks  100  use a series of interconnected communication links  101  (e.g., coaxial cables, optical fibers, wireless, etc.) to connect multiple premises  102  (e.g., businesses, homes, consumer dwellings, etc.) to a local office or headend  103 . The local office  103  may transmit downstream information signals onto the links  101 , and each premises  102  may have a receiver used to receive and process those signals. 
     There may be one link  101  originating from the local office  103 , and it may be split a number of times to distribute the signal to various premises  102  in the vicinity (which may be many miles) of the local office  103 . The links  101  may include components not illustrated, such as splitters, filters, amplifiers, etc. to help convey the signal clearly, but in general each split introduces a bit of signal degradation. Portions of the links  101  may also be implemented with fiber-optic cable, while other portions may be implemented with coaxial cable, other lines, or wireless communication paths. By running fiber optic cable along some portions, for example, signal degradation may be significantly minimized, allowing a single local office  103  to reach even farther with its network of links  101  than before. 
     The local office  103  may include an interface, such as a termination system (TS)  104 . More specifically, the interface  104  may be a cable modem termination system (CMTS), which may be a computing device configured to manage communications between devices on the network of links  101  and backend devices such as servers  105 - 107  (to be discussed further below). The interface  104  may be as specified in a standard, such as the Data Over Cable Service Interface Specification (DOCSIS) standard, published by Cable Television Laboratories, Inc. (a.k.a. CableLabs), or it may be a similar or modified device instead. The interface  104  may be configured to place data on one or more downstream frequencies to be received by modems at the various premises  102 , and to receive upstream communications from those modems on one or more upstream frequencies. 
     The local office  103  may also include one or more network interfaces  108 , which can permit the local office  103  to communicate with various other external networks  109 . These networks  109  may include, for example, networks of Internet devices, telephone networks, cellular telephone networks, fiber optic networks, local wireless networks (e.g., WiMAX), satellite networks, and any other desired network, and the network interface  108  may include the corresponding circuitry needed to communicate on the external networks  109 , and to other devices on the network such as a cellular telephone network and its corresponding cell phones. 
     As noted above, the local office  103  may include a variety of servers  105 - 107  that may be configured to perform various functions. For example, the local office  103  may include a push notification server  105 . The push notification server  105  may generate push notifications to deliver data and/or commands to the various premises  102  in the network (or more specifically, to the devices in the premises  102  that are configured to detect such notifications). The local office  103  may also include a content server  106 . The content server  106  may be one or more computing devices that are configured to provide content to users at their premises. This content may be, for example, video on demand movies, television programs, songs, text listings, etc. The content server  106  may include software to validate user identities and entitlements, to locate and retrieve requested content, to encrypt the content, and to initiate delivery (e.g., streaming) of the content to the requesting user(s) and/or device(s). 
     The local office  103  may also include one or more application servers  107 . An application server  107  may be a computing device configured to offer any desired service, and may run various languages and operating systems (e.g., servlets and JSP pages running on Tomcat/MySQL, OSX, BSD, Ubuntu, Redhat, HTML5, JavaScript, AJAX and COMET). For example, an application server may be responsible for collecting television program listings information and generating a data download for electronic program guide listings. Another application server may be responsible for monitoring user viewing habits and collecting that information for use in selecting advertisements. Yet another application server may be responsible for formatting and inserting advertisements in a video stream being transmitted to the premises  102 . Although shown separately, one of ordinary skill in the art will appreciate that the push server  105 , content server  106 , and application server  107  may be combined. Further, here the push server  105 , content server  106 , and application server  107  are shown generally, and it will be understood that they may each contain memory storing computer executable instructions to cause a processor to perform steps described herein and/or memory for storing data, such as information for identifying a user, content audio files for identifying content from an audio profile or audio clip, and metadata for viewing on second screen devices. 
     An example premises  102   a , such as a home, may include an interface  120 . The interface  120  can include any communication circuitry needed to allow a device to communicate on one or more links  101  with other devices in the network. For example, the interface  120  may include a modem  110 , which may include transmitters and receivers used to communicate on the links  101  and with the local office  103 . The modem  110  may be, for example, a coaxial cable modem (for coaxial cable lines  101 ), a fiber interface node (for fiber optic lines  101 ), twisted-pair telephone modem, cellular telephone transceiver, satellite transceiver, local wi-fi router or access point, or any other desired modem device. Also, although only one modem is shown in  FIG. 1 , a plurality of modems operating in parallel may be implemented within the interface  120 . Further, the interface  120  may include a gateway interface device  111 . The modem  110  may be connected to, or be a part of, the gateway interface device  111 . The gateway interface device  111  may be a computing device that communicates with the modem(s)  110  to allow one or more other devices in the premises  102   a , to communicate with the local office  103  and other devices beyond the local office  103 . The gateway  111  may be a set-top box (STB), digital video recorder (DVR), computer server, or any other desired computing device. The gateway  111  may also include (not shown) local network interfaces to provide communication signals to requesting entities/devices in the premises  102   a , such as display devices  112  (e.g., televisions), additional STBs  113 , personal computers  114 , laptop computers  115 , wireless devices  116  (e.g., wireless routers, wireless laptops, notebooks, tablets and netbooks, cordless phones (e.g., Digital Enhanced Cordless Telephone—DECT phones), mobile phones, mobile televisions, personal digital assistants (PDA), etc.), landline phones  117  (e.g. Voice over Internet Protocol—VoIP phones), and any other desired devices. Examples of the local network interfaces include Multimedia Over Coax Alliance (MoCA) interfaces, Ethernet interfaces, universal serial bus (USB) interfaces, wireless interfaces (e.g., IEEE 802.11, IEEE 802.16), analog twisted pair interfaces, Bluetooth interfaces, and others. 
       FIG. 2  illustrates general hardware elements that can be used to implement any of the various computing devices discussed herein. The computing device  200  may include one or more processors  201 , which may execute instructions of a computer program to perform any of the features described herein. The instructions may be stored in any type of computer-readable medium or memory, to configure the operation of the processor  201 . For example, instructions may be stored in a read-only memory (ROM)  202 , random access memory (RAM)  203 , removable media  204 , such as a Universal Serial Bus (USB) drive, compact disk (CD) or digital versatile disk (DVD), floppy disk drive, or any other desired storage medium. Instructions may also be stored in an attached (or internal) hard drive  205 . The computing device  200  may include one or more output devices, such as a display  206  (e.g., an external television), and may include one or more output device controllers  207 , such as a video processor. There may also be one or more user input devices  208 , such as a remote control, keyboard, mouse, touch screen, microphone, etc. The computing device  200  may also include one or more network interfaces, such as a network input/output (I/O) circuit  209  (e.g., a network card) to communicate with an external network  210 . The network input/output circuit  209  may be a wired interface, wireless interface, or a combination of the two. In some embodiments, the network input/output circuit  209  may include a modem (e.g., a cable modem), and the external network  210  may include the communication links  101  discussed above, the external network  109 , an in-home network, a provider&#39;s wireless, coaxial, fiber, or hybrid fiber/coaxial distribution system (e.g., a DOCSIS network), or any other desired network. 
     The  FIG. 2  example is a hardware configuration. Modifications may be made to add, remove, combine, divide, etc. components of the computing device  200  as desired. Additionally, the components illustrated may be implemented using basic computing devices and components, and the same components (e.g., processor  201 , ROM storage  202 , display  206 , etc.) may be used to implement any of the other computing devices and components described herein. For example, the various components herein may be implemented using computing devices having components such as a processor executing computer-executable instructions stored on a computer-readable medium, as illustrated in  FIG. 2 . Some or all of the entities described herein may be software based, and may co-exist in a common physical platform (e.g., a requesting entity can be a separate software process and program from a dependent entity, both of which may be executed as software on a common computing device). Additionally, the computing device  200  may include a metadata manager  201   a , which can perform the various metadata collection and generation processes described herein as a replacement for, or augment to, any other processor  201  that the computing device  200  may include. That is, the metadata manager  201   a  may include a separate processor and/or set of computer-executable instructions stored on a computer-readable medium that, when executed by a processor, cause the processor (or the computing device  200  as a whole) to perform the various metadata collection and generation processes described herein. The metadata manager  201   a  may also include secure memory (not shown), which can store the various criteria for collecting and generating metadata described herein. The secure memory can be any desired type of memory, and can have enhanced security features to help restrict access (e.g., can only be accessed by the metadata manager  201   a , can be internal to the metadata manager  201   a , etc.). Where the metadata manager  201   a  includes a separate set of computer-executable instructions, these instructions may be secured such that only authorized users may be allowed to modify, augment, or delete them. 
     In some embodiments, the metadata manager  201   a  may be implemented as an application specific integrated circuit (ASIC). That is, the metadata manager  201   a  may be a chip designed specifically for performing the various metadata collection and generation processes described herein. Further, the ASIC may be implemented within or in communication with various computing devices provided herein. 
     One or more aspects of the disclosure may be embodied in a computer-usable data and/or computer-executable instructions, such as in one or more program modules, executed by one or more computers or other devices. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types when executed by a processor in a computer or other data processing device. The computer executable instructions may be stored on one or more computer readable media such as a hard disk, optical disk, removable storage media, solid state memory, RAM, etc. As will be appreciated by one of skill in the art, the functionality of the program modules may be combined or distributed as desired in various embodiments. In addition, the functionality may be embodied in whole or in part in firmware or hardware equivalents such as integrated circuits, field programmable gate arrays (FPGA), and the like. Particular data structures may be used to more effectively implement one or more aspects of the disclosure, and such data structures are contemplated within the scope of computer executable instructions and computer-usable data described herein. 
       FIG. 3  is a diagram showing an example system architecture  300  on which various features described herein may be performed. The system  300  of  FIG. 3  depicts a local office  103 , a first premises  102   a , a second premises  102   b , one or more content databases, such as content distribution networks (CDN)  310  and  320 , a network  330 , and a second screen experience computing device (e.g., server)  340 . As shown in  FIG. 1 , the local office  103  may connect to the first premises  102   a  and second premises  102   b  via links  101 . The first premises  102   a  may include an interface  120  (e.g., a gateway), a first screen device  301  (e.g., a television, a monitor, a projector, a smartphone, etc.), and one or more second screen devices  302  (e.g., a smartphone, tablet, laptop, etc.). As shown, in  FIG. 3 , multiple users A and B may be located at the first premises  102   a  and each user may operate a second screen device  302  while consuming content via the first screen device  301 . Meanwhile, the second premises  102   b  may include an interface  120 , a first screen device  301 , and a second screen device  302  used by a user C. Content, such as video content, may be transmitted (e.g., streamed) from the local office  103  to the interfaces  120  of the first and second premises  102   a - b , and to the first screen devices  301 . Thus, users A and B may consume content (e.g., view the content) at the premises  102   a  and user C may consume content at the premises  102   b . Notably, while consuming content, each user may operate a respective second screen device  302  to access data related to the content consumed on the first device  301  at their premises  102 . For example, user A may operate a second screen device  302 , such as a smartphone, to access data, such as the name of an article of clothing worn by an actor shown in the content streamed through the first screen device  301 . The data may be any data, such as metadata, that provides information or additional content to supplement the primary content (e.g., linear television program, Internet or other network-stored content, on-demand movies, etc.) consumed on the first screen device  301 . For example, data may include a link to an information source, such as a webpage, indicating where an article shown in the primary content can be purchased and how much it can be purchased for, a video clip with bonus features, text and/or images with information about the content itself or about individuals or items shown in the primary content, advertisements, coupons, questions pertaining to the primary content, etc. This data may be generated by viewers, and may grow over time as more users view the content. For example, data may include user commentary about scenes or events in the content. Also, for example, the data may include commentary from a user&#39;s friend(s) regarding different scenes in a movie, and the commentary may be tagged to points in time in the movie, so that they may be displayed at the appropriate time. Fans may annotate a particular scene with a link to a webpage where an item in the scene may be purchased. The various data may be collected from ordinary everyday consumers of the content, as well as from formal content sources. The collection and use of this data to generate metadata will be described further below. 
     Referring to  FIG. 3 , users may consume content at a premises  102   a  (e.g., a home, business, etc.). Consuming content may include, for example, watching and/or listening to a television program or an Internet (or another local or global network) video on a first screen device  301 . The first screen device  301  may receive the content from the interface  120 , which is connected to the local office  103  and configured to retrieve the content.  FIG. 3  also illustrates some examples of second screen devices  302 , namely a smartphone and a laptop computer. Each (or some) second screen device  302  may be configured to capture audio in connection with the content on the first screen device and to collect, display, and communicate data in response to user inputs. The audio may be the audio associated with the content, e.g., the soundtrack, actors&#39; voices, or other audio signals (e.g., tones) inserted into or carried by the primary content for purposes of audio identification. In cases where other audio signals, such as tones or beeps, are embedded into the primary content, those audio signals may or may not be discernible by a user, but may be detected by a second screen device  302 . Further, for example, the second screen device  302  may be a smartphone having an application that allows the smartphone to capture audio through the microphone of the smartphone and respond to user inputs through a keypad or touchscreen of the smartphone to obtain data related to content consumed on a first screen device  301 . Although  FIG. 3  shows some example second screen devices  302 , many other devices may be used as second screen devices  302 . Indeed, another television, similar in configuration to a first screen device  301 , may be used as the second screen device  302 . Moreover, it should be understood that the second screen device  302  might not have a screen, and could be any device, such as a television remote controller, that has input functionality. 
     Further, each of the second screen devices  302  may be configured to bi-directionally communicate via a wired and/or wireless connection with the second screen experience computing device  340  via the network  330 . Specifically, the second screen devices  302  may be configured to access the network  330  (e.g., the Internet or any other local or wide area network, either public or private) to obtain data and to transmit/receive the data via the network  330  to/from the second screen experience computing device  340 . For example, a second screen device  302  may transmit data through a wired connection, including the links  101  through which the content is supplied to a first screen device  301 , to the local office  103  which then routes the transmission to the network  330  so that it may eventually reach the second screen experience computing device  340 . That is, the second screen device  302  may connect to the interface  120  and communicate with the second screen experience computing device  340  over-the-top of the links  101  used to transmit the content downstream. Alternatively, the second screen devices  302  may connect directly to the network  330  to communicate with the second screen experience computing device  340 . For example, a second screen device  302  may wirelessly communicate using, for example, a WiFi connection and/or cellular backhaul, to connect to the network  330  (e.g., the Internet) and ultimately to the second screen experience computing device  340 . Accordingly, although not shown, the network  330  may include cell towers and/or wireless routers for communicating with the second screen devices  302 . 
     Although  FIG. 3  depicts the second screen experience computing device  340  as being separate from the local office  103 , in some embodiments, the second screen experience computing device  340  may be located at the local office  103 . In such embodiments, the second screen devices  302  may still access the second screen experience computing device  340  through the network  330 . Further, even though the second screen experience computing device  340  is shown as a single element, in some embodiments, it may include a number of computing devices  200 . 
     Still referring to  FIG. 3 , the local office may include a router  305 , a second screen experience management platform  306  for executing any of the steps described herein, and a database  307  for storing user information (e.g., user profiles), audio files, metadata, and/or computer-executable instructions for executing audio recognition processes or any of the steps described herein. The router  305  of the local office  103  may forward requests for content from users and/or user devices (e.g., display device  112 ) at premises  102  to one or more CDNs  310  and  320  that may supply the requested content. Each of the CDNs  310  and  320  may include one or more routers  311  and  321 , whose purpose is to receive requests from users (e.g., via their local offices) and route them to servers within its network that may store the requested content and be able to supply it in response to the request. A CDN  310  for a given piece of content might have a hierarchy of one primary source, and a plurality of lower-level servers that can store (e.g., cache) the content and respond to requests. The lower-level servers that ultimately service the request may be referred to as edge servers, such as one or more edge servers  312  and  322 . The various servers may include one or more content databases  313  and  323 , which store content that the respective CDN  310  and  320  manages. In some embodiments, the CDNs  310  and  320  may provide the same or similar content. In other embodiments, the content of the CDNs  310  and  320  may offer different content from one another. Also, the CDNs  310  and  320  may be maintained/operated by the same or different content providers. Although only two CDNs  310  and  320  are shown, many CDNs may be included in the system architecture  300  of  FIG. 3 . 
       FIGS. 4A-4H  are diagrams illustrating example screens of an application (or program) configured to allow users to create and/or view metadata relating to a program or content they are consuming. The screens in  FIGS. 4A-4H  may be displayed on a second screen device  302 . A user may operate his/her second screen device  302  to start an application, which may render one or more of the screens shown in  FIGS. 4A-4H . 
     In some cases, the user may have to log-in to proceed to use one or more of the features of the application. As shown in  FIG. 4A , logging-in may require entering a username and/or password. In this manner, the application may identify a user of the second screen device  302  running the application. Once the user is logged-in, actions, such as entering data for tag submissions and/or editing pre-existing metadata tags, may be automatically associated with the user. 
       FIG. 4B  illustrates a screen of the application in which a user may edit his/her profile. The profile may be used to customize filters which may filter metadata displayed to the user. Various items may be set in the user profile, such as the user&#39;s age, interests, favorite music, etc. Based on this information supplied by the user, only certain metadata may be shown thereby improving the user&#39;s second screen experience without overwhelming the user with an excessive amount of metadata that may exist. For example, if a user likes sports, metadata related to sports may be shown on the user&#39;s second screen device  302  while other metadata may be filtered out. By supplying profile information, users may also be able to see metadata from other users with similar interests. For example, a user who indicates that she likes country music may choose to specifically receive metadata created by other users who have indicated in their profile that they like country music. 
     Further,  FIG. 4C  illustrates a screen that allows a user to control/customize the filters themselves. As shown, the application may allow a user to filter the metadata received to include only metadata from certain individuals (e.g., friends). For example, a user may be more interested in what metadata their friends have submitted than in the metadata created by others. Therefore, the user may control a filter to specify which people (e.g., friends, family, celebrities, etc.) he/she would like to see metadata from. 
     Another example filter shown in  FIG. 4C  may allow a user to specify the types of metadata that he/she will receive. For example, if a user desires only to view metadata that is in the form of a video (e.g., bonus video), the user may specify this in a filter of the application. Yet another filter may allow the user to filter the metadata by its genre. As explained herein, when metadata is entered, a genre may be specified for the metadata. This specified genre may be a basis on which other users filter the metadata they wish to view. An example of a genre of metadata may be “trivia.” Specifically, some metadata may be characterized as trivia questions pertaining to aspects of the content associated with the metadata. For example, if an actor enters a scene, metadata of the “trivia” genre may include a question such as “Do you know where the actor is from?” and/or a statement indicating that the actor is from “Barcelona, Spain.” 
       FIGS. 4A-4C  show example screens for configuring the application for a specific user. In light of these example screens, it should be understood that various other screens may be used to configure the application. Moreover, users may choose to configure the application at any time and/or in various orders. For example, a user may access a screen like the screen in  FIG. 4C  to configure a filter before accessing a screen like the screen in  FIG. 4B  to configure a profile. 
     In any event, the user may eventually view a screen like the one shown in  FIG. 4D . As shown in the screen of  FIG. 4D , a user may choose to select a process for identifying content that the user is currently consuming Identifying the content allows the system to provide the user with the correct stream of metadata, and also helps to match any data uploaded by the user to the correct program and time within the program so that metadata tags may be generated. In some embodiments, the identification can be done with a simple exchange of information between, for example, the second screen device  302  and a primary device, such as a STB or interface  120 . For example, the STB may simply report to the device  302  the channel number or service identifier currently being displayed on the main screen  301 , and the current playback time. However, in some embodiments, the interface  120  might be a legacy device that lacks the ability to directly communicate with the second screen device  302  in this manner. In such situations, the second screen device  302  may detect an audio profile or capture an audio sample of the content being consumed, and the audio profile or audio sample may be used to identify the content being consumed and the current playback time within the content. For such an embodiment, in response to a selection of the “Identify Content” button in  FIG. 4D , a recording screen similar to the screen in  FIG. 4E  may be displayed on the second screen device  302 . Specifically, the screen in  FIG. 4E  may be displayed while the application detects an audio profile or records an audio clip. When the second screen device  302  is in proximity to a first screen device  301 , the detected audio profile may represent the audio associated with the content streaming via the first screen device  301 . Once the audio profile is detected, the application may determine the identity of the content streaming on the first screen device  301  based on the audio profile. This determination may include transmitting the audio profile to another device, e.g., the second screen experience computing device  340 , and receiving a message indicating the identity of the content. The second screen experience computing device  340  may perform audio recognition techniques to identify the content. Such techniques may include comparing the audio profile with recorded audio samples or other audio profiles from all of the various content offerings made available to the user, to identify an audio match. These recorded audio samples and/or other audio profiles used for the comparison may be stored in databases within the second screen experience computing device  340  or elsewhere (e.g., in the local office  103  or in other computing devices  200  connected to the network  330 ). In some examples, the search for matching recorded audio samples or other audio profiles may be narrowed with the assistance of electronic program guides. For example, the second screen experience computing device  340  may consult one or more electronic program guides to determine which recorded audio samples or audio profiles to use for the comparison with audio profile received from the second screen device  302 . 
     The identification described above is initiated by the user selecting the “Identify Content” button, but the identification need not require such a user initiation. For example, in some embodiments, the identification process can automatically occur whenever the user launches the metadata application on the second screen device  302 , or whenever the user enters data that he/she would like to upload for the content that he/she is currently watching, or when the user wishes to tag a point in a program for which he/she will eventually upload a comment or data (e.g., if the user needs time to collect Internet links for the comment, or to draft the comment, the user can simply tag the point in time and then subsequently draft the data to be associated with the tagged point in time in the content). 
     When the application ultimately determines the identity of the content, a screen similar to that shown in  FIG. 4F  may be displayed so that the identity of the content may be shared with the user of the second screen device  302 . Moreover, the screen in  FIG. 4F  may indicate a data tag identifier (e.g., “Tag  1 ”) and a time stamp (e.g., 12 minutes and 25 seconds) identifying a time within the identified content that corresponds to the audio profile or audio clip. From the screen in  FIG. 4F , a user may select to enter data related to the tag. Once the data is entered, a user may submit a metadata tag submission to another device and/or service that is responsible for collecting data from users (e.g., the second screen experience computing device  340  or another computing device including a metadata manager  201   a ) and generating a metadata tag based on the collected data. Additionally, the screen in  FIG. 4F  may also allow a user to remove tags if the user later decides not to submit the data. 
       FIG. 4G  illustrates a screen that displays a metadata entry form configured to facilitate entry of data to be included in a metadata tag submission. The form may be generated and displayed automatically in response to identifying the content provided on the first screen device  301  from the audio profile or audio clip or in response to a user selection. As shown in  FIG. 4G , the form may include a number of fields  401  in which data may be entered. Although  FIG. 4G  shows that each field may be for a different type of data, in other cases one field may be configured to receive any type of data. In addition to the fields, for entering data, a separate genre field  402  may exist for giving the user the option to classify the data he/she is entering by genre. For example, the user may select from a drop down menu a genre indicating that the data she has or will enter may be classified as biographical information related to the associated content. Also, beside each of the fields  401 , the form may include a link for triggering the generation of a dialog box. For example, when a user selects the “Attach” link next to the field for the web link, a dialog box  403  may be displayed. 
       FIG. 4H  illustrates an example dialog box  403  that may appear over the metadata entry form. The dialog box  403  may allow a user to browse for the data. For example, the dialog box  403  may allow a user to browse files stored on the hard drive of the second screen device  302  or on a local network (e.g., a local media server). Alternatively, the dialog box  403  may function like a web browser to allow a user to navigate to a website and select a URL of the website, a link within the website, or any other object within the website. The dialog box  403  may allow such a selection to be imported into a field  404  within the dialog box  403 . Then, after the user selects “submit” in the dialog box, the data in the field  404  of the dialog box  403  may be imported into the appropriate field  401  of the form. Finally, the data entry may be completed when the user selects “submit” in the metadata entry form. In response to selecting “submit” in the metadata entry form, the application may generate a metadata tag submission described herein. Further, although not depicted in the drawings, after selecting “submit” in the metadata entry form, the application may render a screen showing the submitted data or a screen showing other data submitted for the content provided on the first screen device  301 . Additionally, it should be understood that multiple types of data may be entered into the fields  401  when “submit” is selected in the metadata entry form so that multiple types of metadata tags may be generated for a similar time point of the content provided on the first screen device  301 . For example, a user may insert text indicating that she bought the same shirt as a particular actress and a web link where it can be purchased. 
     The metadata entry forms shown in  FIGS. 4G and 4H  are just examples. In some embodiments, the metadata entry forms may include specific fields that require a user to enter specific information so that each metadata tag created may have a similar format. For example, a user may be required to select a character, an item of clothing, and store from various drop down menus in order to submit a metadata tag submission. While such an embodiment may hinder a user&#39;s creativity, the structured metadata tag submission may be beneficial when filtering the metadata. 
     In addition, the metadata entry form may include a field (not shown) for designating target individuals (e.g., friends, family members, etc.) so that the tag submissions may be available exclusively for the target individuals. For example, a user may select one or more friends that he/she would like to share the metadata with so that when the tag submission is sent, it will only be available to the selected one or more friends. When one or more of the selected friends later views the associated content, he/she can see the metadata in the tag submission that was made available to them. Thus, the metadata entry form may be used to filter metadata submissions on the upstream side as well. 
     Although the above description explains that the screens in  FIGS. 4A-4C  may belong to an application, it should be understood that the screens may also be webpages of a website displayed by a web browser. That is, in some embodiments, a user may navigate to a designated website and submit metadata tag submissions through the website. 
       FIG. 5  is a flow diagram illustrating an example method of the present disclosure in which a user may generate and upload metadata relating to content that he/she is consuming In particular,  FIG. 5  describes an example process of acquiring data from a user for uploading to the second screen experience computing device  340 . As explained above, an aspect of the present disclosure is to provide a method that allows multiple users (e.g., the “crowd”) to assist in generating second screen metadata so that other users viewing video content at a later time may enjoy an enhanced experience by accessing the metadata generated by the crowd. The process in  FIG. 5  illustrates how data to be included in a metadata tag submission may be acquired from a single user. It should be understood that many users may perform a similar process as illustrated in  FIG. 5  so that a large amount of metadata may be obtained. Also, with regards to the description related to  FIG. 5 , where the disclosure refers to steps performed by a second screen device  302 , it should be understood that these steps may be performed by a computing device processor, such as a processor in second screen device  302 , executing computer-executable instructions stored on the second screen device  302 . Alternatively, the steps may be performed by any other device that the user may use to generate and/or view metadata for a piece of content. 
     As shown in  FIG. 5 , the process may begin with step  501  in which content is provided to the user for consumption, such as via file-based transfer, unicast and/or multicast streaming, analog or digital broadcasting, playback of previously-stored content (e.g., content recorded by a DVR or downloaded at an earlier time), etc. Referring to  FIG. 3 , step  501  may entail video content being supplied from one or more of the CDNs  310  or  320  to the local office and downstream to one or more of the premises  102 . At the premises  102 , the video content may be received through the interface  120  and streamed through the first screen device  301 . In short, step  501  may include, for example, the known steps for delivering for consumption an item of content to a display device. Additionally, delivering content in step  501  may include delivering audio associated with the video content and/or audible features designed to identify timing within the content. The audio content may be outputted via the first screen device  301  itself or another device connected to the first screen device (e.g., a speaker system). 
     In step  502 , a user may decide that he/she would like to create some supplemental information or content for a particular scene or point in the content. For example, the user may wish to alert others that a particular piece of art in the background was created by a friend. To initiate the supplemental content generation, the user may first enter an input to tag the point in time in the primary content. This may be done, for example, by pressing the “Identify Content” button discussed above. The input may be received via a second screen device  302 . Specifically, the user input received at step  502  may be an instruction to generate a tag to identify a point in the content (e.g., a point in a television program) with which the user wishes to associate information. Inputs may be made by users in various ways, such as pressing a button on a keypad of the second screen device  302 , pressing a virtual button on a touch-screen of the second screen device  302 , submitting a voice command to the second screen device  302 , making a predetermined gesture or body movement detected by a camera, etc. 
     The time at which a user input is received at step  502  depends on the user. When the user consumes (e.g., views) an event on the first screen device  301  and decides to create metadata related to the event, the user may enter user input. For example, if the user is watching a television show and an actor appears on the first screen device  301  wearing a sweater, the user may decide to create metadata that specifies where the sweater may be purchased, and therefore, may enter user input at step  502  to trigger metadata creation. Herein, an event may refer to any occurrence, such as a playback point in time, a scene, a chapter, a character&#39;s appearance, etc., within the content streamed on a first screen device  301 . At any given time point there may be multiple events. Further, different users may perceive different events, and thus, different users may choose to create metadata for different events occurring at the same time within the content streaming on the first screen device  301 . By allowing users to dictate the time at which they can enter data, a large amount of metadata may be acquired and organized. 
     In response to the user input at step  502 , an audio sampling (or audio clip) may be captured at step  503  to help identify the program and a portion of the program to be associated with the user&#39;s data. For example, the second screen device  302  may detect and process a 15-second segment of the audio portion of the content and generate a data profile or fingerprint of the detected audio. Specifically, an application on the second screen device  302  may use one or more audio fingerprinting techniques to generate the data profile or fingerprint. The profile of the audio portion may identify detected characteristics of the sound, such as frequencies sampled, volume level, times at which certain frequencies or volume levels were detected, etc. The purpose of the audio profile is to provide data from which an identity of the content being consumed by the user (e.g., streaming on the first screen device  301 ), as well as a point in time within the content, may be obtained. Notably, it might not be necessary for the first screen device  301  or the interface  120  to send any information other than the sound to the second screen device  302  in order for the second screen device  302  to identify the content being streamed, thereby allowing operation with legacy devices. 
     In step  503 , the second screen device  302  which receives the user input may detect audio through its microphone in response to detecting the user input. Where the content being consumed or rendered on the first screen device  301  includes audio, this audio may be detected by a second screen device  302  that is in relatively close proximity to the first screen device  301  (e.g., within a range that the audio from the content may be detected). For example, while watching a television program on a first screen device  301 , a user may operate a second screen device  302  to detect audio associated with the content displayed on the first screen device  301 , such as speech of actors within the television program, background music of the television program, etc. Of course, the second screen device  302  may also detect audio from other sources not playing the audio associated with the content on the first screen device  301 , such as other people talking in a nearby room. However, audio not pertaining to the content (e.g., noise) may be filtered out or heuristics may be used to analyze the audio clip so that such undesirable noise may be neglected. 
     To detect the audio at step  503 , the second screen device  302  may detect audio for a predetermined period of time (e.g., for five seconds). That is, once a user input is detected in step  502 , the second screen device  302  may activate an audio profiling module or fingerprinting module, which may begin to detect audio and store information identifying the profile of the detected audio for the predetermined time period. The predetermined time period may be different for different types of content and in different embodiments. For example, the predetermined time period may be adjusted if the profile for the audio portion is too short to accurately identify the content streamed on the first screen  301 , the device  302  may extend the predetermined time period. Further, in some embodiments, the time period for processing may vary depending on how long it takes the detecting device (e.g., the second screen device  302 ) to recognize that a significant audio sample has been detected and profiled. For example, in some cases, a second screen device  302  may determine that it should process a ten second audio portion, while in other cases the second screen device  302  may determine that it should process a fifteen second audio portion (e.g., where the first 5 seconds of recording were silent). Still, in some embodiments, the duration of the audio portion may be relatively constant, and if the audio portion is not sufficient to identify the content, processing the audio may be repeated a number of times or until the content is identified. The second screen device  302  may send the audio profile to another device (e.g., the second screen experience computing device  340 ) to determine if it is sufficient to identify the content. Then, based on a response from the other device, the second screen device  302  may determine whether or not to process another audio portion. If the other device is unable to identify the content or the time point within the content that the audio profile pertains to, the second screen device  302  may send an audio profile identifying characteristics of the audio signals detected immediately after the insufficient audio profile. In this manner, the user may still associate metadata with a desired point in time of the content. To accomplish this, the second screen device  302  may process a number of audio portions or a certain amount of audio signals of the content. In some embodiments, the second screen device  302  may use a buffer to implement a first-in-first-out (FIFO) queue storing actual audio clips or audio signals of the profiled portions, so that audio clips or audio signals are temporarily stored. The audio clips or audio signals may be dumped after a certain period of time or depending on the size of the buffer. This buffering, however, is optional, as the audio profiling or fingerprinting application may simply generate the audio profile data dynamically as audio is detected, without requiring recording the audio. 
     While  FIG. 5  illustrates that the user input at step  502  is performed prior to detecting the audio at step  503 , it should be understood that this is an example embodiment. In some embodiments, the audio may be detected prior to receiving a user input. For example, a second screen device  302  may begin processing audio when it is first powered on or when an application on the second screen device  302  is initially executed. Also, the second screen device  302  may intermittently (e.g., periodically) process audio or may continuously process audio as long as it is on or as long as an application on the second screen device is running By intermittently or continuously processing the audio, the application may ensure synchronization of the metadata with the content provided on the first screen device  301 . Further, where the audio is detected prior to receiving an input, when the user does make the input, the input may trigger a process of identifying a time point and capturing metadata for that time point. For example, the process may generate an audio profile representing a time point of the content and proceed to step  504 . 
     Furthermore, in some embodiments, where audio of content provided on a first screen device  301  is detected prior to receiving a user input on the second screen device  302 , the user input may also trigger the content on the first screen device  301  to pause. For example, the content provided on the first screen device  301  may be video-on-demand content, which may be paused. To allow users to enter metadata without missing the content streaming on the first screen device  301 , the application on the second screen device  302  may automatically pause the content in response to receiving a user input to begin entry of user metadata. Specifically, the second screen device  302  may pause the content provided on the first screen device  301  by transmitting a signal (e.g., direct infrared signal to a set-top box, or indirect signal by sending a packet to an Internet site that, in turn, transmits a pause command to a digital video recorder or set-top box using EBIF—Enhanced TV Binary Interchange Format—messaging) to the first screen device  301  or another device (e.g., a set top box) associated with the first screen device  301 . 
     In step  504 , a user may operate the second screen device  302  to enter the data or information that the user wishes to upload. Entering data may include various processes. For example, it may include typing information, such as the user&#39;s commentary, or the name of a store which sells a particular product displayed on the first screen device  301  or the webpage of said store. Further, multiple types of data may be obtained at step  504 . For example, a user may acquire both a link for a webpage and text in one implementation of step  504 . 
     In some embodiments, entering data may include navigating to a webpage and copying a link for the webpage and then pasting the link into a data entry area on the device  302 . A user may be able to navigate to the webpage from within the same application that is used to record the audio file and acquire the data so that the user can simply select a button to import the universal resource locator (URL) of the webpage as the data. Alternatively, the application on the second screen device  302  may launch a separate application, such as a web browser, to navigate a network, such as the Internet, to locate data and then press a button to capture the URL from the web browser. Therefore, instead of having to perform known copy and paste functions to obtain a URL, the application used to acquire data may include a function that captures a URL automatically. 
     The user may also use his/her second screen device  302  to create data that is entered. For example, the user may use a global position system (GPS) receiver of the second screen device  302  to identify his/her location and submit the location information as data. The location information may indicate where a product in the content may be found or the geographical location of a scene within the content. Similarly, the user may also use a camera or microphone of the second screen device  302  to capture an image or sound bite that may be used as data to be entered and included in the metadata tag submission. 
     The entered data may be correlated with the audio profile in step  505 . This correlation may be performed automatically by the second screen device  302 . For example, after the audio profile is generated in step  503 , an application on the second screen device  302  may prompt the user to enter the data, and thus, when the user enters the data, the entered data may be automatically correlated with the audio profile most recently generated. In other examples, a user may input data and then choose to correlate the data with an audio profile previously detected. Thus, a user may generate an audio profile while watching a television program and may later enter data and correlate the data with the audio profile after the television program is over or during a commercial break. 
     The application may alert the user that there are audio profiles for which metadata tag submissions have not been created. For example, the application may highlight a portion of the display of the second screen device  302  to indicate that the user has incomplete metadata tag submissions outstanding. In some cases, the application may even indicate how many incomplete metadata tag submissions the user has pending. 
     After the data and audio profile are associated with one another, the second screen device  302  may generate, or provide information to another device to generate, a tag submission at step  506 . The tag submission may be a packet, such as an Internet Protocol version four (IPv4) or Internet Protocol version six (IPv6) packet. The packet may include a specific header that addresses the packet to a designated server, such as the second screen experience computing device  340 . The packet may further include combined data including the audio profile and the data. In some examples, this combined data may be compressed so that the data in the packet does not include all of the data for the audio profile and/or metadata. In particular, where an audio clip rather than an audio profile is to be included in the packet, the audio clip may be compressed to form data that adequately represents the audio clip. Further, the packet may or may not be stored. The packet may be generated without being stored so as to preserve memory on the second screen device  302 . 
     Once the tag submission is generated, the tag submission is transmitted at step  507  to the destination indicated by the header of the tag submission, for example, the second screen experience computing device  340 . In some embodiments, the tag submission may be transmitted in the upstream bandwidth on the same links  101  used to receive the content streamed on the first screen device  301 . That is, the tag submission may be transmitted via the links  101  through which content is sent downstream from the local office  103  to the premises  102 . In this case, the second screen device  302  may first wirelessly transmit the tag submission to the interface  120  which in turn may direct the tag submission upstream. Alternatively, the second screen device  302  may transmit the tag submission over a wireless network, such as a cellular backhaul, or over another wired connection used by the second screen device  302  for connecting to the network  330  (e.g., the Internet or another local or wide area network). 
     At step  508  the process of  FIG. 5  may determine whether another user input to tag the content for metadata upload is received. If another user input is received, the process returns to step  503  to detect another audio profile. Accordingly, steps of  FIG. 5  may be repeated to generate multiple tag submissions including data for various segments of content streamed on the first screen device  301 . Notably, the content being streamed may change, and thus, the audio profile in a subsequent implementation of step  503  may be for different content than the previous implementation of step  503 . Meanwhile, if a new user input is not detected, step  509  may be performed to determine if a wait period has elapsed since the last user input or whether an application for entering the data is still running. If the wait period has elapsed or the application is terminated, the process of  FIG. 5  may end. Otherwise, step  508  may be continuously performed until a new user input is detected. In the meantime, other steps may also be performed. For example, the application on the second screen device  302  may change its display from displaying a form for entering data to a screen for viewing metadata created by others. 
     In some embodiments, the second screen device  302  may identify the content itself based on the audio profile, and may determine a time point for the audio profile. Or the time point may be obtained from the primary device (e.g., STB displaying content on the display  301 ). In such cases, the tag submission might not include the audio profile (and the device  302  might not bother detecting one), and instead may include identification information identifying the content, the time point of the audio profile, and secondary information (e.g., the data entered by the user). Still, in other embodiments, the second screen device  302  may send the audio profile to a server (e.g., the second screen experience computing device  340 ), and may receive identification information from the server in response (e.g., information identifying the content and/or information identifying a time point of the audio profile, which the computing device  340  may determine by comparing the audio profile with pre-recorded samples or pre-configured profiles of known programs). In these embodiments, the tag submission also might not include the audio profile, and instead may include the received identification information and corresponding secondary information (e.g., data). 
     Next, an example method of processing metadata tag submissions is described with reference to  FIG. 6 . As explained above, a second screen experience computing device  340  may be configured to store metadata and transfer the metadata to second screen devices  302  so that users may enjoy an enhanced experience.  FIG. 6  illustrates how metadata tags may be received by and stored within such a second screen experience computing device  340 .  FIG. 6  begins with step  601  in which a tag submission is received. The tag submission received in step  601  may correspond to tag submissions transmitted in step  507  of  FIG. 5 , or may be received or accessed from another source. 
     In some examples, step  601  may include decoding or parsing the tag submission. As discussed above, the tag submission may include an audio profile and associated data. Thus, when receiving the tag submission, the second screen experience computing device  340  may decode the tag submission (e.g., an IP packet) and separate the data related to the audio profile from the data to be used for the metadata. Similarly, other information included in the tag submission (e.g., an IP packet header) may also be distinguished from the audio profile data and data. In some embodiments, the tag submission may be analyzed to determine whether a time and content identifier is included and/or whether an audio profile is included. 
     Further, it is contemplated that a computing device, such as the second screen experience computing device  340 , may receive multiple tag submissions. In some examples, the second screen experience computing device  340  may be configured to receive more than one tag submission at the same time. To facilitate the potentially large volume of tag submissions that may be received, the second screen experience computing device  340  may include multiple computing devices (e.g., servers). 
     In step  602 , the second screen experience computing device  340  may identify the content associated with the tag submission. Specifically, the audio profile data from the tag submission may be analyzed to identify the content that was consumed through the first screen device  301  by the user who triggered generation of the tag submission. Analyzing the audio profile data may include performing any audio recognition process. To identify the content represented by the audio profile, the second screen experience computing device  340  may include or have access to a database including actual audio files or audio profiles for various content. In some examples, such a database may include audio files and/or audio profiles for all content that may possibly have been consumed by users. In performing an audio recognition process, the second screen experience computing device  340  may access one or more electronic program guides to facilitate (e.g., by narrowing a list of possible audio files based on availability of content) a search for a matching audio file within the database. In some cases, such a database might not include audio files and/or audio profiles for all possible content, and therefore, the content might not be identified. Notably, in some embodiments, audio recognition processes may be performed by the second screen device  302 , and thus, the process of step  602  at the second screen experience computing device  302  may be optional. 
     Step  603  may determine whether the content has been identified in step  602 . If the content is identified (Yes at step  603 ), the method may proceed to step  604 . If the content is not identified (No at step  603 ), a message may be transmitted to the second screen device  302  that sent the tag submission, which included the content that was not identified, notifying the sender that the content could not be identified and the method of  FIG. 6  may thereafter end. In response to receiving the message, the user may choose to resubmit the tag submission or respond to the message with additional information that may aid in identifying the content (e.g., the name of a television program). 
     In step  604 , one or more filters may optionally be applied to the data. Specifically, the data may be filtered to determine whether the user&#39;s uploaded data should be added to the body of metadata that is stored for the particular piece of content. For example, a filter may be applied to determine whether data is appropriate (e.g., whether data includes undesirable language or images). In some examples, whether data is appropriate may vary depending on a rating (e.g., G, PG, PG-13, R, etc.) of the identified content. Therefore, filters for G-rated content may flag any data that includes any “bad” language or images, which would go unflagged through filters for R-rated content. Another example of a filter may include a filter to determine whether the data is relevant. That is, filters may be generated to analyze the data to determine whether it pertains to the content that it purports to be related to. Such a filter may search the data for words that match a list of expected words or similar words to other metadata for the same content that has already been supplied. Additionally, or alternatively, such a filter may analyze the data to determine whether it is known spam. Yet another filter may determine whether the data is a duplicate. It is contemplated that many users may submit data, and therefore, it is recognized that users may submit the same data. To avoid or reduce the occurrence of duplicate metadata, the second screen experience computing device  340  may implement a filter that analyzes previously and/or simultaneously submitted data to determine if the data is a duplicate. Duplicate data may also be the result of multiple occurrences of the same event within the same content. For example, an actress may wear the same shoes in different scenes, and thus, users may submit the same data for different scenes. The filter used to prevent or reduce duplicates may distinguish whether the duplicate is for the same segment of content. For example, the filter may allow duplicate data when the data pertains to different segments, but may flag duplicate data that is for the same segment of the same content. In some embodiments, where filters flag certain data, one or more authorized personnel may be tasked with reviewing the flagged data and deciding whether to remove or keep the flags. In other words, there may be a task force or team of people for reviewing flagged data to determine which data is ultimately stored as metadata. 
     The above described filters are just a few examples of the many filters that may be applied to the data to control which metadata may be made accessible to second screen devices  302 . Further, the present disclosure explains that filters may flag certain data. Flagging data may include setting a value (e.g., a flag) of a memory cell associated with the data to ‘1.’ Alternatively, instead of flagging data, the filters may delete the data from a storage area (e.g., a cache) where the data that is received in step  601  may be temporarily stored. 
     Next, at step  605 , the second screen experience computing device  340  may determine whether a metadata tag submission should be accepted into storage for storing metadata based on the results of the filtering. Where flags are used to mark data, determining whether a metadata tag submission should be accepted may comprise checking whether flags exist for the data. For example, if the data is flagged, then the corresponding metadata tag might not be stored. Alternatively, where filters delete certain data that does not pass, then determining whether the metadata tag submission should be accepted may be performed by determining if the associated data still exists in a temporary storage area. If the metadata tag submission is not accepted (No at step  605 ), the method may end. In this case, the metadata tag corresponding to the metadata tag submission received at step  601  might not be stored on the second screen experience computing device  340 . In some embodiments, the sender of the tag submission may be notified that the tag submission was denied in a similar manner that a notification is sent when content cannot be identified. 
     On the other hand, if the tag submission is accepted, e.g., the data passes the filtering (Yes at step  605 ), the method may proceed to step  606 . In step  606 , the corresponding metadata tag may be stored so that the content identified in step  602  may be tagged with the data received in the tag submission. Storing the metadata tag may include storing the data in association with a time point of the identified content. The time point may correspond to the time within the content that matches the audio profile that was included within the submission. For example, if the audio profile represents a five second audio clip occurring ten minutes into a television program, the metadata associated with that audio profile may be associated with a time point referencing the ten-minute mark of the television program. In some examples, when determining the time point of the content to tag, the method may consider that there may be a delay between the time when the user consumes an event and when the user triggers the generation of the audio profile. In recognition of such a delay, the method may tag the content at a point in time preceding the time represented by the audio profile by a predetermined interval (e.g., ten seconds). Alternatively, instead of associating the tag with a specific time point, the tag may be associated with a segment of the content. For example, a half-hour television show may be divided into six five-minute time segments, and if the audio profile is determined to represent a time point of eight minutes into the television show then the tag may be associated with the second segment (e.g., the segment between five minutes and ten minutes). 
     In some embodiments, the second screen experience computing device  340  may transmit a confirmation message to the user who sent the metadata tag submission to ask the user to confirm the time point of the metadata tag submission. In response to the confirmation message, a user may modify the time point thereby fine-tuning the association of the metadata to the time point in the content. The user may also modify the information in the metadata tag. In some examples, the confirmation message may include an image showing a screen shot (or frame) from the content at the time point that the metadata tag will be associated with. Thus, a user may view the image and determine whether the time point of the metadata tag is correct. Alternatively, or additionally, the confirmation message may include an audio clip corresponding to the audio profile that was received so that the user may listen to the audio clip to determine whether the time point of the metadata tag is correct. 
     In some embodiments, storing a metadata tag at step  606  may include editing a previous metadata tag. For example, if the time point of the metadata tag to be generated coincides with a pre-existing metadata tag, then the method may modify the pre-existing tag to include the newly submitted metadata. That is, editing or modifying a tag may include combining metadata from a pre-existing tag and the metadata most recently acquired and associating the combined metadata with the same time point in the content. 
     Additionally, the method may also include step  607  for ranking the metadata tags. In some embodiments, one or more of the metadata tags for the identified content may be ranked so that higher ranked metadata tags are displayed on a second screen device  302  before lower ranked metadata tags. In some examples, metadata tags are only ranked if more than one metadata tag exists for the same time point or segment in a particular piece of content. In this case, the ranking of the metadata tags may be relative among the metadata tags that pertain to the same time point or segment. 
     Ranking may be based on the user who is responsible for generating the metadata tag. In particular, the ranking may be based on a user&#39;s previous metadata tag submissions. For example, a metadata tag may be ranked higher because the user who generated the metadata tag submission previously sent a plurality of metadata tag submissions that were approved. Alternatively, or additionally, the ranking may be based on a user&#39;s profile. Certain users may be more credible than others, and therefore, metadata tag submissions from such users may be ranked higher. Also, user profiles may indicate that certain users have been given priority. For example, users associated/affiliated with a content provider or content creator may be given priority such that metadata tags created by such users are given higher rankings. User profiles may assist in identifying which users are affiliated with a content provider or content creator so that such prioritization scheme can be implemented. Metadata tags from advertisers and marketing companies may also be given higher priority. Similarly, metadata tags created by select individuals (e.g., friends, family, celebrities, etc.), who may be identified as described above, may be given higher priority as well. 
     In some embodiments, ranking of metadata tags may be done by other users viewing the metadata tags on second screen devices  302 . Specifically, users may assist in ranking the metadata tags by rating the metadata tags. If a user “likes” a metadata tag, the metadata tag&#39;s ranking may improve, whereas if a user “dislikes” a metadata tag, the metadata tag&#39;s ranking may be lowered. In this manner, the crowd may be used to rank the metadata tags so that more relevant, desirable, and/or helpful metadata tags are ranked higher than others. 
     The above methods describe example methods for leveraging individual users, or a crowd of users, to acquire supplemental information and generating metadata tags based on the supplemental information. The following provides examples as to how these metadata tags may be provided to and displayed on second screen devices  302 . An example method is described with reference to  FIG. 7 . 
       FIG. 7  begins with step  701  in which content is delivered for presentation (or otherwise provided) to a first screen device  301 . When content is delivered or accessed for the first time, there might not be any metadata tags. However, when the content is delivered again (e.g., when the content is video on demand (VOD) content, a rerun, or otherwise time shifted), metadata tags generated by previous users of the content may be available for users to consume (e.g., view) with second screen devices  302 . So, for example, a user may load or access supplemental information on a second screen device  302 , where the supplemental information comprises the various user comments and metadata that have been entered and uploaded for the content that the user is about to watch.  FIG. 8 , discussed further below, illustrates an example of this. Thus, when content is delivered or accessed at step  701  after having been previously provided at least once, metadata tags associated with the content may be obtained. The more times content is streamed, the more likely it may be that people have provided metadata for the content. Further, in some cases, content creators, content providers, or other authorized persons or organizations may generate some metadata for content before it is made publically available, so that users consuming the content for the first time may also have supplemental information to access with their second screen devices  302 . That is, metadata may be available before the content is delivered for the first time, and users consuming the content may add to or modify what is already available. 
     While content is delivered in step  701 , a user may power up a second screen device  302  and initiate an application on the second screen device  302  that is configured to allow the second screen device  302  to receive metadata from the second screen experience computing device  340  (or another device). Specifically, a processor of the second screen device  302  may run the application. The application may generate a user interface on the second screen device  302  to allow a user to input a command at step  702  when the user of the second screen device  302  wishes to view supplemental information. In response to receiving the user input in step  702 , the second screen device  302  may detect and generate an audio profile at step  703  of the content being delivered to the first screen device  301  so that metadata related to the content may be retrieved without the user having to provide other information to identify the content. In addition to supplying a command at step  702 , a user may also specify the types, genre, authors, etc. of metadata tags that he/she desires to view. Steps  702  and  703  may, in one aspect, be performed in a similar manner as steps  502  and  503  of  FIG. 5 , respectively to generate an audio profile representing the content being consumed. 
     Next, at step  704 , a request for metadata may be transmitted. For example, the second screen device  302  may generate and transmit a request for metadata related to the content being consumed. Specifically, the request for metadata may include the audio profile generated in step  703 . Thus, the audio profile may be transmitted from the second screen device  302  to a server (e.g., the second screen experience computing device  340 ) configured to evaluate the audio profile to identify content based on the audio profile. At step  705 , the second screen experience computing device  340  may identify the content being streamed based on the audio profile captured in step  703 . Further, in step  705 , the second screen experience computing device  340  may determine whether metadata tags exist for the identified content. In some cases, the second screen experience computing device  340  may specifically search for metadata tags associated with the segment of the content related to the audio profile. As also discussed above, the identification of the program may be done without using audio sampling and/or generating an audio profile. For example, the user may simply view a program schedule or program listing on the second screen device  302 , and select one to identify it to the computing device  340 . If the user used the second screen device  302  to initiate playback of the content in the first place (e.g., using a device  302  that is paired to control a DVR or STB, or to request a VOD session), the second screen device  302  may determine from this selection what content is being presented on the first screen device  301 . 
     In some embodiments, the second screen experience computing device  340  may respond to the transmission in step  704  by providing the metadata for any existing metadata tags or by providing a message indicating that one or more metadata tags exist, and thus, the determination in step  705  may be performed by the second screen device  302  itself. 
     If metadata tags do not exist (No at step  705 ), the second screen experience computing device  340  may send a message indicating that no metadata tags exist to the transmitting second screen device  302 . However, if metadata tags do exist, the metadata of the corresponding metadata tags may be received at step  706 . The received metadata tags may be ranked in a particular order based on, for example, a user profile associated with the receiving second screen device  302  and/or priority levels of users who generated the metadata. In some cases, the received metadata may only include the metadata associated with the audio profile sent to the server. In other cases, the received metadata may be some portion or all of the metadata from a time period in the content starting with the audio profile sent to the server. Still in other cases, the audio profile may simply be used for identification of the content, and might not control what metadata is displayed. In any event, the received metadata may then be displayed at step  707 . As discussed above, in some embodiments, the user of the second screen device  302  receiving the metadata may choose which metadata to display. Such selections may be used in ranking the metadata in subsequent accesses of the data as described above. For example, a user&#39;s selection of a particular metadata may increase that metadata&#39;s ranking such that it appears higher in a list of available metadata when the same user or another user subsequently receives the metadata. 
     After displaying the supplemental content, in some embodiments, the user of the second screen device  302  may rate the metadata at step  708 . For example, the user may select whether the user “likes” or “dislikes” the metadata. Such selections may also be used in ranking the metadata in subsequent accesses of the data as described above. 
     At step  709 , the process of  FIG. 7  may determine whether the application is still running. If not, the process of  FIG. 7  may end. However, if it is still running, the process may loop back to step  703  to process another piece of audio. By intermittently (periodically) detecting audio profiles at step  703 , the synchronization of the metadata tags displayed on the second screen device  302  with the content provided on the first screen device  301  may be achieved. Further, steps of  FIG. 7  may be repeated so that a user may view metadata for various content or segments of content streamed on the first screen device  301 . Notably, the content being streamed may change, and thus, the audio profile detected in a subsequent implementation of step  703  may be for different content than the previous implementation of step  703 . In some cases, a user of the second screen device  302  may trigger the detection of audio profiles at step  703 . For example, when a user knows that he/she has switched channels, the user may instruct the application to detect a new audio profile (i.e., proceed to step  703 ) so that he/she may view the metadata associated with the content currently provided on the first screen device  301 . 
       FIG. 8  illustrates a diagram of an example screen  801  of an application configured to allow a user to view metadata on a display  802  of a second screen device  302 . As shown in  FIG. 8 , the screen  801  may display metadata for a particular piece of content. In this case, the screen  801  shows example metadata for a particular episode of the television show Seinfeld. A user of the application may choose the episode for which he/she wants to view metadata. Such a selection may be performed by detecting an audio profile from audio of content streaming on a first screen device  301  as described above with respect to step  703 . Alternatively, or additionally, the selection may be made by selecting from a list of available content that has existing metadata. Also, the application may have a search box  803  that allows users to search for a particular piece of content. 
     Once content is chosen, the screen  801  may display the metadata for that content. The metadata may be displayed in a variety of ways. For example, the metadata may be displayed in chronological order according to the time point or segment of the content that the metadata corresponds to. In other words, referring to  FIG. 8 , if the event “Jerry is in line for soup” occurs within the Seinfeld episode before the event “Elaine sings,” then the metadata generated by username1 and username2 for the “Jerry is in line for soup” event may be displayed first. As shown in  FIG. 8 , there may be more than one piece of metadata content for each event. In such cases, the metadata may be ordered in various ways as well. For example, the metadata may be ordered based on relevance so that more relevant pieces of metadata appear above less relevant pieces. Here, relevance may be determined manually by, for example, an administrator, or automatically based on the viewing user&#39;s profile or based on a priority level of the users that submitted the data. As shown in  FIG. 8 , the author/creator of the metadata may be identified by, for example, a username (e.g., username 1, username 2, etc.). Each username may be assigned a priority level, and therefore, metadata created by a person having a username with a higher priority may appear above metadata created by a person having a username with a lower priority. Referring to  FIG. 8 , username 1 may have a higher priority level than username 2, and as such, the metadata of username 1 may appear above the metadata of username 2. As explained herein, the priority levels for usernames may be established based on various factors, including how frequently a username enters metadata or whether others approve of other metadata entered by a username. In some embodiments, higher priority levels may be given to preferred usernames, such as those associated with companies that wish to have their metadata appear higher in the list. Also, while  FIG. 8  shows that metadata may be displayed in chronological order, in other examples, the metadata may be displayed on the basis of priority level alone. Still in other cases, as explained herein, users may control which metadata is displayed using filters and/or by providing a profile for the system to utilize in determining which metadata a user might be interested in. Further, the display may be modified based on a search of the metadata using, for example, the search box  803 . The application may also be configured to allow a user of the second screen device  302  to re-order the metadata tags. For example, the user may click and drag the metadata submitted by username3 related to Kramer&#39;s t-shirt to the top of the list because Kramer is wearing that t-shirt at an earlier time in the episode. 
       FIG. 8  also illustrates that the application may allow users to comment on (or reply to) metadata created by others. For example, username4 may comment on metadata generated by username3 to provide another place where an item may be purchased. The application may permit users to respond to other users&#39; metadata in this manner by allowing them to select on the metadata they wish to respond to and prompting them with a metadata entry form similar to the form shown in  FIG. 4G . Yet another feature of the application may be that users can rate metadata generated by other users. For example, a user having username1 may select a “like” or “agree” icon  804  appearing next to metadata created by username8 Meanwhile, another user having username2 may select a “dislike” or “disagree” icon  805  appearing next to metadata created by username8 In some examples, the results of feedback from other users (e.g., how many people agree and/or how many people disagree) may be displayed on the screen  801 . Further, in some embodiments, when a predetermined number of “dislikes” or “disagrees” are submitted in response to a single piece of metadata, that metadata may be removed or otherwise hidden. Therefore, if inappropriate metadata is submitted (e.g., X-rated content or X-rated language), other users may prevent that metadata from being displayed. As a result, “the crowd” may police the metadata content displayed by the application. This result is illustrated in  FIG. 8  which shows that metadata submitted by username8 is hidden so that it can only be accessed via a link, and which shows that metadata submitted by username9 is removed. Where the metadata is hidden such that it is only accessible via a link, whether the link can be followed may depend on a user&#39;s profile, which may indicate a user&#39;s age. 
     The crowd may also be leveraged to improve the quality of the metadata. For example, where metadata is spoiled (e.g., includes a web link that is no longer available, inaccurate, irrelevant, or otherwise undesirable), the application displaying the metadata may be configured to allow the crowd to remove the metadata. In some examples, to prevent any one person from having too much control over the metadata, a certain number of removal requests may be required before the metadata is actually removed. Additionally, or alternatively, to address concerns about spoiled web links a web crawler may be utilized to confirm whether web links still exist. Moreover, the web crawler may also evaluate the web links to determine whether the web links still show related metadata. Furthermore, when metadata is determined to be spoiled, the system (e.g., the second screen experience computing device  340 ) may notify the creator of the spoiled metadata tag. Given this notice, the creator may choose to re-tag the metadata or edit the metadata tag (e.g., provide a new web link). 
     Although the above description explains that the crowd may be leveraged to police the quality of metadata, it is also contemplated that one or more administrator(s) of the system may have the authority to review the metadata tags as well. For example, an administrator may remove duplicates, delete inappropriate metadata, and update metadata if it is spoiled. 
       FIG. 8  further illustrates that the application may allow users to initiate the generation of metadata tags from the screen  801  showing already submitted metadata tags. Specifically, the user may select any of options  806 ,  807 , and  808 . In different embodiments, different options  806 ,  807 , and  808  may be available. By selecting option  806 , a user may initiate identification of the content, for example, by processing audio of the content to detect an audio profile which can be used for comparison with audio files or audio profiles of known content. This may then result in a time point of the content being tagged, and allow the user to enter metadata for the tag in a manner similar to that shown in  FIG. 4F . On the other hand, when a time point or segment of the content is already identified (e.g., in a case where audio is continuously processed), a user may select option  807  thereby triggering a metadata entry form (like the one shown in  FIG. 4G ) to be displayed. The user may then complete the metadata entry form and submit it. Once submitted, the metadata tag may then appear in the listing shown on  FIG. 8  so that the user can see his/her submission. Additionally, or alternatively, option  808  may include a text box in which a user may enter text. When the user begins to enter text and/or submits the text, the application may capture a time point for the content so that the text can be added into the listing at the appropriate place in chronological order. Another option (not illustrated) for entering metadata while viewing the listing of metadata tags shown on the screen  801  of  FIG. 8  may include allowing the user to click a location on the screen  801  into which he/she wishes to add metadata. In other words, the application may generate a dialog box similar to the dialog box  403  of  FIG. 4H  when a user clicks on a portion of the screen  801  and receive the metadata through the dialog box. Once the metadata is submitted through the dialog box, the application may then insert the metadata tag into a position of the listing where the user clicked. In this manner, the metadata entered in the dialog box may be associated with a time point of the content based on its relationship (e.g., relative order) to other metadata tags in the listing that are already associated with time points of the content. 
     It should be understood that the screen  801  of  FIG. 8  is an example intended to aid understanding of the present disclosure. In some embodiments, the screen  801  might not show the events (e.g., “Jerry is in line for soup,” “Kramer barges into apartment,” etc.), and instead, simply show the metadata in chronological order. Where the events are shown, they may be defined by the content creators (e.g., the producers of Seinfeld) or some other administrator(s) who has undertaken the task of identifying events throughout the content. Also, rather than including text to describe events, the events may be represented by images, audio, video, etc. 
     Further, the application may be synchronized with content streaming on a first screen device  301  so that the metadata displayed on the screen  801  may correspond to the particular segments or time points of the content streaming on the first screen device  301 . For example, when the portion of the Seinfeld episode where Jerry waits in line for soup is streamed on the first screen device  301 , only the corresponding metadata generated by username1 and username2 may be shown. Alternatively, additional metadata for other segments of the content (e.g., metadata corresponding to when Elaine sings) may be shown, but may appear below the corresponding metadata generated by username1 and username2. Further, a feature of the application may be to display different metadata as the streaming content changes, add metadata as the streaming content changes, move an icon (e.g., arrow  809 ) to point to different metadata as the streaming content changes, highlight different metadata as the streaming content changes, or to automatically scroll down a list of metadata as the streaming content changes. To accomplish this task, the application may process audio of the content streaming on the first screen device  301  to identify a starting point and may assume that the streaming content continues to stream. Using such a starting point, the application may determine an approximate time when the user is viewing certain events, and thus, may display corresponding metadata. In some embodiments, the application may continuously or periodically process audio from the content streaming on the first screen device  301  to synchronize the metadata with the streaming content. 
       FIG. 9  illustrates another embodiment for displaying metadata on a screen  901  of a second screen device  302 . As shown in  FIG. 9 , a left frame  902  of the screen  901  may display a listing of content (e.g., television shows, movies, videos, etc.). The listing of content may be recently watched content, favorite content of a user of the second screen device  302 , or all for which metadata exists. In some cases, the content listing may include statistics beside each content named in the listing showing how many metadata tags exist for that content. Additionally, or alternatively, the left frame  902  may include statistics indicating which friends, family members, or other specified individuals have commented on which content. Thus, a user can identify and navigate to metadata generated by specific individuals. The left frame  902  may also indicate which content is being streamed on a near-by first screen device  301  and/or for which piece of content metadata is currently being displayed in a right frame  903  of the screen  901 . For example, the television show “Friends” in the left frame  902  of  FIG. 9  is highlighted indicating that metadata for “Friends” is being shown in the right frame. 
     Meanwhile,  FIG. 9  also shows an example of metadata that might be shown in the right frame  903 . The metadata shown in the right frame  903  may change as the content provided on the first screen device  301  is played back. Specifically, the metadata shown in the right frame  903  may be synchronized with a time point or segment of the content on the first screen device  301  so that when a particular time point or segment of the content on the first screen device  301  is played back, the corresponding metadata may pop-up in the right frame  903  of the screen  901 . To facilitate synchronization, the second screen device  302  may detect the particular time point or segment by continuously recording audio from the content on the first screen device  301  and analyzing the recording (e.g., detecting an audio profile). Using audio recognition processes, the second screen device  302  may determine a point in time of the content. Then, the second screen device  302  may compare the determined point in time to time points associated with metadata for the content to determine when and what metadata to display. 
     Alternatively, instead of continuously recording audio or continuously processing audio from the content to detect audio profiles, the second screen device  302  may intermittently (e.g., periodically) detect an audio profile and use the audio profile to identify a time within the content as a reference point. Then, the second screen device  302  may use a clock to keep track of time in relation to the reference point. For example, from an audio profile detected by the second screen device  302 , the second screen device  302  may determine that the content on the first screen device  301  is five minutes into the content. The second screen device  302  may then use a clock to keep track of time from that point on so that the second screen device  302  may determine when the user is 7 minutes and 33 seconds into the content at which point it may display corresponding metadata in the right frame  903  of the screen  901 . In some cases, the screen  901  may include a clock  904  showing a running time of the content. This clock may allow the user to assist in synchronizing the content. Specifically, if the user suspects that the time of the clock  904  does not match the time of the content, then the user may choose to detect a new audio profile, for example, by selecting a button (e.g., the identify content option). 
     As explained above,  FIG. 9  shows that different metadata may pop-up on the screen  901  in synchronization with content provided on a first screen device  301 . In some cases, a particular piece of metadata may be displayed on the screen  901  until the next metadata tag is reached. If there are many metadata tags, the second screen device  302  may regulate how frequently the metadata changes so that the metadata can be viewed. Also, in some cases, advertisements or other information may be shown in between different metadata tags. 
     Further, while  FIG. 9  illustrates metadata corresponding to the television show “Friends,” it should be understood that metadata associated with a commercial being displayed on the first screen device  301  may also pop-up on the second screen device. For example, when a commercial for a car is provided on the first screen device  301 , metadata associated with the commercial (e.g., a website of a local dealer selling the car, a video of the car, etc.) may pop-up onto the screen  901  of the second screen device  302 . 
     It should be understood from the description herein that synchronization may be more readily accomplished because timestamps may be determined when creating the metadata tag submissions. Further, even though not all metadata in any one embodiment may be synchronized, synchronization of even a small portion of the metadata may be desirable. 
     Additionally, another aspect of the disclosure is to provide a method and system for content creators, content providers, and/or advertisers to view what others (e.g., the “crowd”) are saying about their content, services, and/or products. Such advertisers, for example, may be permitted to add and/or present information related to their product or services (subject to any filters). As described above, users may control their second screen devices  302  to filter out metadata so that they may only view metadata they are interested in. Similarly, content creators, content providers, advertisers, etc. may be able to use devices (e.g., second screen devices  302 ) to filter metadata created by the crowd to view metadata they are interested in. For example, a store may filter metadata associated with one or more pieces of content to view metadata that mentions its name or includes a web link to its website. 
     Although example embodiments are described above, the various features and steps may be combined, divided, omitted, and/or augmented in any desired manner, depending on the specific secure process desired. For example,  FIG. 7  may be modified so that a user inputs information identifying content for which the user wishes to view metadata instead of detecting an audio profile in step  703  and transmitting the audio profile in step  704 . This patent should not be limited to the example embodiments described, but rather should have its scope determined by the claims that follow.