Source: https://patents.google.com/patent/CN103283210B/en
Timestamp: 2020-06-01 02:54:47
Document Index: 425914352

Matched Legal Cases: ['art 200', 'art 200', 'art 200', 'art 200', 'arts 200', 'arts 200', 'art 200', 'art 200', 'art 200', 'art 200', 'art 200', 'art 300', 'art 300']

CN103283210B - Mobile device and method for proximity detection verification - Google Patents
CN103283210B
CN103283210B CN201180063457.1A CN201180063457A CN103283210B CN 103283210 B CN103283210 B CN 103283210B CN 201180063457 A CN201180063457 A CN 201180063457A CN 103283210 B CN103283210 B CN 103283210B
described touch
CN201180063457.1A
CN103283210A (en
桑迪普·武普
克里斯·格里瓦斯
2010-12-31 Priority to US12/983,121 priority
2011-12-28 Application filed by 摩托罗拉移动有限责任公司 filed Critical 摩托罗拉移动有限责任公司
2011-12-28 Priority to PCT/US2011/067473 priority patent/WO2012092318A2/en
2013-09-04 Publication of CN103283210A publication Critical patent/CN103283210A/en
2015-07-08 Publication of CN103283210B publication Critical patent/CN103283210B/en
A mobile device (102) includes a touch screen display (106) and touch screen circuit (227) for receiving touch inputs (116). A camera (108) configured to acquire one or more images in front of the display (106). A proximity sensor (114) configured to provide an indication that a user is in close proximity to the touch screen display (106). A processor (204) being effective to determine, in response to the indication of the proximity sensor (114), whether the user is in a position to view the display (106) based on the one or more images of the camera (108). If the proximity sensor (114) provides an indication that the user is in close proximity to the display (106) and the processor (204) determines, based on the one or more images, that the user is in a position to view the display (106), then at least one of the display (106) and the touch screen circuit (227) are not disabled.
For mobile device and the method for proximity test checking
The present invention relates to the mobile device for proximity test checking and correlation method.
The such as portable electric appts of mobile phone, smart mobile phone, PDA(Personal Digital Assistant) and panel computer has become popular and ubiquitous.Increasing characteristic sum application is added to these equipment, comprises call function, text function and e-mail function, linking Internet, camera, navigation application, media store and display application etc.These equipment generally include the display of the graphic screen with such as liquid crystal display (LCD) screen or flat board, and this needs backlight to make image visible usually.This is because from such as cathode ray tube (CRT) display is different, LCD does not produce light.Specifically, backlight illuminates LCD from the back side of display floater or side.There is known various types of backlight, comprise such as incandescent lamp bulb, light-emitting diode (LED), electroluminescent panel (ELP), one or more cold-cathode fluorescence lamp (CCFL) or hot-cathode fluorescent lamp (HCFL).
In some equipment, backlight and graphics panel are controlled as closes so that save electric power after predetermined amount of time, because many mobile devices are battery powered and these parts may be remarkable consumption to battery when opening.Mobile electronic device depends on the battery as power supply usually, and therefore responsive to power-consuming component.Graphic screen backlight consumes a large amount of electric power usually when being illuminated, and can greatly reduce battery life (that is, battery carries out the time operated before battery must recharge) like this.In order to reduce the electric power that backlight and display screen for graphic presentation consume during the operation of mobile device, expect to provide a kind of mobile device for proximity test checking and method.
In addition, portable electric appts can also comprise the touch-screen display controlled by touch screen circuitry, and this touch screen circuitry considers that user activated touches input.When equipment is near user facial, such as when making a phone call, touch-screen display may be subject to the involuntary impact of actuating of user.Therefore, proximity transducer is generally used for aid identification equipment when near the face of user.Because proximity transducer is also subject to the involuntary impact of actuating of the gesture performed by user, therefore expect to provide a kind of mobile device for proximity test checking and method.
Fig. 1 is the front view of EXEMPLARY MOBILE DEVICE;
Fig. 2 is the block diagram of the EXEMPLARY MOBILE DEVICE of Fig. 1; And
Fig. 3 is the flow chart of the step that the illustrative methods that the mobile device of Fig. 1 and Fig. 2 can perform is shown.
The mobile device with touch-screen display comprises the graphic screen be illuminated.Whether mobile device comprises for sensing user further with the proximity transducer of display close proximity and be coupled to for receiving the touch screen circuitry touching the touch-screen display inputted.Utilize proximity transducer, can by mobile device perform the degree of approach determine mobile device whether with user's close proximity, this can occur between the elementary period of call.If determine user and display close proximity at telephone call mobile device, so mobile device supposition user does not need to use display or touch-screen, therefore mobile device can forbid display to preserve electric power, and forbid touch screen circuitry to prevent the health of user (such as, cheek, ear etc.) make one or morely touch the involuntary of input and actuating.
Some mobile devices comprise the proximity transducer be positioned at around on front side of equipment such as near the loud speaker of equipment, and this proximity transducer detects the face of user when near equipment (close proximity), such as occurs at telephone call.Then, unique triggering of closing display or discrete touch screen circuit can be used as to the detection of close proximity.Although can use proximity transducer in like fashion to realize the forbidding making display and touch screen circuitry, proximity transducer is also subject to involuntary impact of actuating.Along with the development of mobile device, the number touching input and other transducers various and parts increases; The gesture that this development significantly increases the close proximity of the face being different from user will trigger the possibility of proximity transducer.As a result, while execution gesture, user not inadvertently may trigger the forbidding of display and touch screen circuitry, and creates sizable inconvenience.In order to reduce the possibility of involuntary forbidding, proximity transducer can use in combination with the camera of mobile device, to provide validation signal before forbidding display and touch screen circuitry.
More specifically, mobile device can be configured to use facial recognition software to detect the user's face in the camera lens front being positioned at camera to determine whether user is positioned at the position of viewing display.When to consider to suppose that the mode that user is watching display detects user's face, if two eyes such as detected, be so provided for indicating user and be positioned at viewing and the signal operating the position of touch-screen display.Camera can also comprise the auto-focusing feature utilizing and can indicate the feedback signal of lens location.Lens location can also be utilized to determine how far user has apart from mobile device.More specifically, camera lens is mobile to focus on the user being positioned at close proximity position in one direction, and movement is in the opposite direction positioned at far close user to focus on.By measure camera lens relative to fixing point position and utilize close to sensing algorithm, mobile device can calculate the distance from camera to user.In addition, monitor that lens location can allow camera to be used as proximity transducer and without the need to face recognition in like fashion.The lens location of mobile device detects and/or face recognition feature can use in conjunction with proximity transducer, with the checking providing the close proximity of making proximity transducer to determine, minimizes the involuntary forbidding of backlight and touch screen circuitry thus.
With reference now to Fig. 1, provide can have mobile phone form EXEMPLARY MOBILE DEVICE 102(as described more comprehensively with reference to figure 2), this EXEMPLARY MOBILE DEVICE 102 comprises the function of such as image acquisition, calling, Email, text and internet browsing function etc.In other embodiments, mobile device can be such as a personal digital assistant or panel computer that can comprise in other electronic equipments various of mobile device capability.As shown, mobile device 102 comprises the front side 104 that display 106 is located thereon, and wherein when user operates mobile device 102 in a specific way, display 106 is usually directed and can be watched by user towards user.Display 106 can adopt and utilize for providing the graphics driver circuit of figure and the backlight 217(Fig. 2 for illuminating figure over the display) the form of graphic alphanumeric display, such as backlight liquid crystal displays (LCD).Backlight 217 can also provide illuminating for the one or more navigation keys integrated with display 106.In other embodiments of at least some, display 106 comprises the graphic alphanumeric display utilizing and provide the graphics driver circuit of figure on the display being integrated with light source wherein, such as active matrix light-emitting diode (AMOLED) display.
In addition, mobile device 102 comprises for receiving the touch screen circuitry 227 that the touch relevant with display 106 inputs 116.In addition, mobile device 102 comprises front camera 108, and this front camera 108 is located substantially on mobile device 102 inside and comprises the camera gun 110 of the image by aperture 111 for obtaining the scenery (scene) being positioned at display 106 front.Camera 108 can comprise the feature of auto-focusing feature and the position for tracking lens 110.Mobile device 102 comprises the loud speaker 112 for monitoring from the audio frequency of mobile device 102 further, and around front side 104, provide one or more touch load button 116.Touch load button 116 can be included as a part for display screen or can be separated with display screen, and the one or more and touch screen circuitry 227 touched in load button 116 communicates.In addition, proximity transducer 114 is provided, for such as when carrying out call, sensing movement equipment whether close proximity user, more particularly, a part for the face of user.In at least some embodiments, transducer 114 is as at the U.S. patent No.6 being " SENSORCONTROLLED USER INTERFACE FOR PORTABLECOMMUNICATION DEVICE " by reference to the title be herein incorporated, 246, the infrared ray proximity transducer describing at least in part in 862 and/or realize.Although transducer 114 is shown and described as infrared ray proximity transducer 114, transducer 114 alternatively can adopt electric capacity, inductance, sound wave, radio frequency (RF) or other detection technologies.
As mentioned above, in order to reduce the possibility of the forbidding of involuntary trigger scope 106 and touch screen circuitry 227, proximity transducer 114 and camera 108 may be used for verifying when forbidding and are likely suitable.More specifically, by carrying out crosscheck to the signal from proximity transducer 114 and the signal from camera 108, the possibility of forbidding the display 106 and touch screen circuitry 227 caused due to unintentional gesture is significantly reduced.
With reference to figure 2, according to the present embodiment, provide the block diagram of the example internal hardware component 200 of the mobile device 102 of key diagram 1.As shown in Figure 2, internal part 200 comprises one or more transceiver 202, processor 204(such as, one or more in microprocessor, microcomputer, application-specific integrated circuit (ASIC) etc.), memory 206, one or more output equipment 208 and one or more input equipment 210.Internal part 200 may further include unit interface 212, and this unit interface 212 is connected with accessory or the direct of annex for providing for function that is extra or that strengthen.Internal part 200 preferably also comprises the power supply 214 of such as battery, provides electric power for while making mobile device 102 portable to other internal parts.In addition, internal part 200 comprises one or more transducer 228 in addition.All internal parts 200 can by one or more internal communication link 232(such as, internal bus) and coupled to each other and communicate each other.
Each in transceiver 202 utilizes the wireless technology for communicating, such as (but being not limited to) such as analog communication (using AMPS) can be comprised, digital communication (uses CDMA, TDMA, GSM, iDEN, GPRS, EDGE etc.) and next generation communication (use UMTS, WCDMA, LTE, IEEE802.16 etc.) or the communication technology based on honeycomb of its variant, or such as family RF(radio frequency), bluetooth or IEEE802.11(a, b, g or equity n) or ad hoc communication technology, or other wireless communication technologys of such as infrared technology.In the present embodiment, transceiver 202 comprises cellular transceiver 203 and wireless lan (wlan) transceiver 205, but only there is (and may not be any one in the transceiver of these types and/or the transceiver of other types) in the transceiver of these types in other embodiments.Be to be understood that, although the present embodiment comprises transceiver 202, each in this transceiver 202 can be understood to include wireless receiver and wireless launcher, but in other embodiments, can be different parts for the receiver of the wireless technology of any given type and reflector, even if and/or the reflector do not existed for this wireless technology, also can there is the receiver of the wireless technology of given type, or vice versa (there is reflector and there is not receiver).
By means of the use of transceiver 202, mobile device 102 can communicate with the various external components of other equipment with such as cell tower, access point/focus.The operation of the transceiver 202 combined with other internal parts 200 of mobile device 102 can take various forms.Such as, the operation of transceiver 202 can be carried out in the following manner: when receiving wireless signal, internal part 200 pairs of signals of communication detect, and transceiver 202 pairs of signals of communication carry out demodulation with the such call-in message of the such as voice and/or data that recover to be transmitted by wireless signal.After receiving call-in message from transceiver 202, processor 204 pairs of call-in messages format for one or more output equipment 208.Similarly, for the transmission of wireless signal, processor 204 formats exhalation information, this may not need to be activated by input equipment 210, and what exhalation information be sent in transceiver 202 is one or more to modulate, so that provide the signal of communication of the modulation that will transmit.The signal of communication of modulation to be sent to other equipment of such as cell tower, access point/focus or remote server or other remote equipments various by wireless (and may be wired) communication link (not shown) by transceiver 202.
According to embodiment, the input and output device 208,210 of internal part 200 can comprise various vision, audio frequency and/or machinery and export.Such as, output equipment 208 can comprise such as display screen 106(such as, backlight type graphic screen) one or more visual output device 216, such as loud speaker, alarm and/or one or more audio output apparatus 218 of buzzer and/or one or more mechanical output device 220 of such as vibrating mechanism.In addition, visual output device 216 can also comprise video display screen.Similarly, such as, input equipment 210 can comprise one or more audio input device 224 and/or one or more mechanical input device 226 of one or more visual input device 222, the such as microphone of such as camera 108, such as camera gun position transducer, tilt sensor, keyboard, keypad, select button, navigation key group, touch pad, capacitance type sensor, motion sensor and/or switch.The Image Saving obtained by camera 108 can be analyzed in memory 206 and/or by the processor running such as face detection algorithm.The physics that the operation can actuating one or more input equipment 210 not only can comprise button or other actuators is pressed/is actuated, but also can comprise and such as open mobile device, unlocker device, make equipment moving with actuation movement, make equipment moving with actuation position navigation system and operating equipment.
In addition, although be depicted as by input equipment 210 different from output equipment 208 in fig. 2, should be realized that, in some embodiments comprising the present embodiment, one or more equipment is used as both input equipment and output equipment.That is, in the present embodiment of Fig. 1, the display 106 of mobile device 102 is the user interfaces with touch-sensing ability, be included in the one or more visual output device 216 in the scope of the display translation image of such as relevant to touching input 116 image and so on, and the one or more mechanical input device 226 in the scope touching input 116, it is driven by touch screen circuitry 227, about display screen 106 sensed/can actuate.In other embodiments, the equipment should considering input equipment 210 and the other types both output equipment 208 can be used.
As mentioned above, what internal part 200 can also comprise in various types of transducer 228 is one or more.Transducer 228 can comprise such as proximity transducer 14 and other transducers 231, such as light detecting sensors, ultrasonic transceiver or infrared transceiver, touch sensor, height sensor and one or more positioning circuit/parts, one or more positioning circuit/parts can comprise such as global positioning system (GPS) receiver, triangulation receiver, accelerometer, inclination sensor, gyroscope or can identify the current location of mobile device 102 or any other information collecting device of user device interface.Although the transducer 228 for Fig. 2 object is considered to different from input equipment 210, in other embodiments, one or more input equipment can also be considered to form one or more transducer (and vice versa).In order to the object of this specification, display 106 is not considered to (and not comprising) any transducer 228, but the touch-sensing ability of display 106 can alternatively be considered in the sensor.
The memory 206 of internal part 200 can comprise any one one or more memory devices in various forms (such as, read-only memory, flash memory, random access memory, static RAM, dynamic random access memory etc.), and can be used to store and retrieve data by processor 204.In certain embodiments, can make memory 206(or its a part) with processor 204(or its a part) be integrated in individual equipment (such as, comprise processor (PIM) in memory or memory) in, even if such individual equipment still has usually perform different disposal and memory function and the different piece/parts that can be regarded as separation equipment.The data that memory 206 stores can including but not necessarily limited to operating system, program (application program) and information data.Each operating system comprises executable code, the basic function of this executable code to mobile device 102 controls, basic function be such as included between the various parts in internal part 200 mutual, via transceiver 202 and/or unit interface 212 and external equipment communication and program and data are stored into memory 206 and from memory 206 search program and data.
For program, each program comprises executable code, and this executable code utilizes operating system to provide more specific functions, such as file system service and to the process that is protected and not protected data be stored in memory 206.Although the standard of many such program management mobile devices 102 or required function, but under many circumstances, this program comprises the application (or referred to as " application ") of the optional or special function of management, and this application can be provided by the third-party vendor had nothing to do with mobile device manufacturers in some cases.
Finally, for information data, this be can by operating system with reference to and/or the non-executable code handled or information or the program for the function that performs mobile device 102.This information data can comprise such as the data of pre-programmed or any various types of information on mobile device 102 during manufacture, this various types of information be uploaded to server or other equipment, from server or other device downloads or otherwise server or other equipment accessed, mobile device 102 communicates during it operates with this server or other equipment.Mobile device 102 can be programmed so that processor 204 and memory 206 and carry out alternately for the miscellaneous part performing the mobile device of various function, all control backlight 217 and miscellaneous part as described below.
With reference to figure 3, flow chart 300 shows the step that can be performed the illustrative methods forbidding display 106 and touch screen circuitry 227 by the mobile device 102 of Fig. 1 and Fig. 2.The method starts in step 302 place, and wherein display 106 is opened and started touch screen circuitry 227.In step 304, activate mobile device with initiate or receipt of call phone, thus activate proximity transducer 114 with sensing user to display 106 close to and provide instruction this close output.In step 306, if object or user's close proximity mobile device detected, so transducer 114 exports this close signal of instruction.In step 308, the front camera 108 that triggers the activation of the instruction of this close proximity or transducer 114, and camera obtains the position of the auto-focusing Character adjustment camera lens of one or more image and/or camera and provides lens location information.Then, purpose processor and memory can be made and run about image face detection algorithm and/or use obtained image and/or lens location information being analyzed close to sensing algorithm of lens location, to estimate close apart from camera of object or user.Make comparisons to the lens position data relevant with range data in the position of camera lens by exemplary can the comprising close to sensing algorithm of lens location, this range data represents the distance between the user that at least one and camera lens in display and camera lens focus on, and wherein threshold position is from least one the immutable data value chosen lens position data and the range data that is associated with the close proximity of user with display.In addition, can obtain lens location and lens position data from multiple source, the plurality of source can provide the feedback data or immediate data that change about lens location, the position indicating device on the such as camera lens stepping motor of multiple source.In step 310, whether determine with the analysis of mobile device close proximity based on the position and/or user whether being in viewing display about face.If analysis determines face and is not in the position and/or user and camera 108 close proximity of watching display, so process proceeds to step 312.In step 312, assuming that the close proximity instruction that transducer 114 is made is effective, instead of the result of involuntary gesture, and therefore forbid display 106 and touch screen circuitry 227, and process proceeds to step 314.In step 314, make determination close proximity whether still being detected.If transducer 114 no longer detects close proximity, so process proceeds to step 316.In step 316, enable display 106 and touch screen circuitry 227, and then process proceeds to step 304.
Again forward step 310 to, if if detect that face is in the close proximity that the viewing position of display or camera 108 sense user, so process proceeds to step 318.In step 318, mobile device 102 supposes that the close proximity of transducer 114 is determined the result of involuntary gesture instead of effectively triggers, and so display 106 and touch screen circuitry 227 keep enabling and the method turns back to step 306.Although do not discuss in flow chart 300, close except by the method or additive method, otherwise display 106 can be configured to stay open the time quantum reaching and select in advance.
In addition, although display 106 and touch screen circuitry 227 are described to be activated or deexcitation usually simultaneously, at least some embodiments, can activate or deexcitation display 106 and touch screen circuitry 227 at different time.In another embodiment, only can be activated by the method or in deexcitation display 106 and touch screen circuitry 227 one.
Specifically, the present invention is not limited to the embodiment and explanation that are included in here, but comprises the improved form of those embodiments, and it is included in the combination of a part for the embodiment within claims scope and the unit of different embodiment.
1., for a method for proximity test checking, described method comprises:
Enable the touch-screen display on mobile device and touch screen circuitry;
Proximity transducer is activated by starting call;
The instruction of user and described touch-screen display close proximity is received from described proximity transducer;
In response to the instruction receiving user and described touch-screen display close proximity, obtain one or more images of the scenery in described touch-screen display front;
Described one or more image analysis is determined whether user is in the position watching described touch-screen display; And
And if if according to described analysis, the processor that described proximity transducer provides the described mobile device of instruction of described user and described touch-screen display close proximity determines that described user is not in the position watching described touch-screen display, then forbid at least one in described touch-screen display and described touch screen circuitry.
2. method according to claim 1, wherein, described forbidding comprises the described touch-screen display of forbidding and described touch screen circuitry.
3. method according to claim 1, comprises further: if made other determination, then do not forbid at least one in described touch-screen display and described touch screen circuitry.
4. method according to claim 1, comprises further: initiate face detection algorithm, and described face detection algorithm is used for determining whether described user is in the position watching described touch-screen display to described one or more image analysis.
Touch screen circuitry, described touch screen circuitry touches input for receiving;
Proximity transducer, described proximity transducer is configured to the instruction providing user and described touch-screen display close proximity;
Camera, described camera is configured to the one or more images obtaining described touch-screen display front; And
Processor, described processor is in response to the instruction of described proximity transducer, and the described one or more image based on described camera determines whether described user is in the position watching described touch-screen display effectively,
Wherein, if described proximity transducer provides the instruction of described user and described touch-screen display close proximity and according to described one or more image, described processor determines that described user is not in the position watching described touch-screen display, then forbid at least one in described touch-screen display and described touch screen circuitry.
6. mobile device according to claim 5, wherein, if described proximity transducer provides the described instruction of described user and described touch-screen display close proximity, and described processor determines described user based on described one or more image and is not in the position watching described touch-screen display, then forbid described touch-screen display and described touch screen circuitry.
7. mobile device according to claim 5, wherein, if described proximity transducer provides the described instruction of described user and described touch-screen display close proximity, and described processor determines described user based on described one or more image and is in the position watching described touch-screen display, then do not forbid at least one in described touch-screen display and described touch screen circuitry.
8. mobile device according to claim 7, wherein, each touch in input described comprises for identifying the described respective graphical icon of corresponding function touching input, and described function is actuated in the position of the described icon touched on described touch-screen display by user.
9. mobile device according to claim 7, wherein, activates described proximity transducer by starting call.
10. mobile device according to claim 7, wherein, described processor uses the face detection algorithm being used for analyzing described one or more image.
11. mobile devices according to claim 7, wherein, described camera comprises and having for monitoring the auto-focus lens of camera lens relative to the lens location indicating device of the position of fixed position.
12. mobile devices according to claim 11, wherein, lens location indicating device described in described processor monitors, and by the position of described camera lens is carried out analysis determine described user whether with described touch-screen display close proximity.
13. mobile devices according to claim 12, wherein, the described user that makes by analyzing the position of described camera lens of described processor and described touch-screen display close proximity determine confirm that the close proximity that described proximity transducer is made indicates.
14. 1 kinds of methods for proximity test checking, described method comprises:
Obtain one or more images of the scenery in described touch-screen display front;
Camera gun is focused on be positioned at the user in described touch-screen display front;
The position of reference threshold position to described one or more image and camera lens is analyzed, with determine described user whether with described touch-screen display close proximity; And
If described proximity transducer provides the instruction of described user and described touch-screen display close proximity and according to described analysis, the processor of described mobile device determines that described user is not in the position watching described touch-screen display, then forbid at least one in described touch-screen display and described touch screen circuitry.
15. methods according to claim 14, comprise further: when receiving the other instruction of the object of being made by described proximity transducer no longer close proximity, reactivate at least one in described touch-screen display and touch screen circuitry.
16. methods according to claim 14, comprise further: determine in addition if made, then do not forbid at least one in described touch-screen display and described touch screen circuitry.
17. methods according to claim 14, comprise further: provide close to sensing algorithm, make comparisons to relevant with range data lens position data in the position of described camera lens by described close sensing algorithm, described range data represents the distance between the user that at least one and described camera lens in described touch-screen display and described camera lens focus on, wherein, described threshold position is from least one the immutable data value chosen described lens position data and the range data that is associated with the close proximity of described user with described touch-screen display.
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Effective date of registration: 20160525