CN105491429B - A kind of television system with function switching signal - Google Patents
A kind of television system with function switching signal Download PDFInfo
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- CN105491429B CN105491429B CN201410472289.7A CN201410472289A CN105491429B CN 105491429 B CN105491429 B CN 105491429B CN 201410472289 A CN201410472289 A CN 201410472289A CN 105491429 B CN105491429 B CN 105491429B
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Abstract
The invention discloses a kind of television systems with function switching signal, including sequentially connected camera, television system platform, TV and audio devices；Storage command information corresponding with standard gesture is set in television system platform, television system platform provides the contents such as image, audio according to the corresponding command information of gesture that camera identifies for TV；The audio signal that audio devices input is converted to information signal or command signal and shown on TV by television system platform.A kind of television system with function switching signal of the present invention realizes the transformation of audio and presentation of information by wireless transmission and signal conversion, wireless signal can be converted the audio into send and show on TV, it, can be in relatively remote lower completion input convenient for the input of information such as image, word；In conjunction with Gesture Recognition, instruction execution and information input can be rapidly completed, departing from the dependence to remote controler, improve the operability of TV.
Description
Technical field
The invention belongs to electronic device fields, and in particular to a kind of television system with function switching signal.
Background technology
TV more and more enters in people's lives, work, and in the communications field, wireless communication technique also achieves length
The progress of foot.TV obtains data by remote controller mostly, and the smaller button of remote controler is not easy to operate when in use, very
Maloperation can extremely be caused.
With the development of society, also achieving significant progress in communications field wireless communication technique.TV can be shown
The word or pattern of people's input, typically now need remote controler to select the corresponding word of dummy keyboard in video screen one by one
Mother, to achieve the purpose that input.This is the patterns such as real-time display word, great difficulty is formd, although can be connect by USB
Mouth carries out data transmission, but cannot form the input of word.
Television system with gesture remote control function is endowed more and more application scenarios, and camera can be captured and be taken the photograph
As the image in range, it is a kind of new data entry mode to capture gesture using camera, and camera captures gesture variation
And it is translated into control signal input television system.Which provides a kind of new mode for RTV remote television, can more answer
For the occasion with television system interaction, there is powerful Potential socialvalue.It is used in the technology of existing identification gesture more more
A camera uses depth camera, becomes answering extensively for gesture identification television system using cumbersome and fancy price
With causing certain obstacle.
Invention content
Of the existing technology in order to solve the problems, such as, the present invention provides a kind of TV systems with function switching signal
System has gesture remote control mode and data entry mode, can receive audio and be wirelessly transferred away, is converted into corresponding
Information, convenient for sound in longer-distance information-based display, to achieve the goals above, the present invention uses following technical scheme：
A kind of television system with function switching signal, including TV, television system platform and camera, the TV
It is connected to the output end of television system platform；The camera is connect by its coffret with the television system platform, also
Including：
Audio devices, the audio devices include：Audio conversion unit for receiving audio, sending out audio signal, with
And the signal transmitter unit for connecting with the audio conversion unit, emitting for wireless audio signal；
The camera, which is equipped with, to be wirelessly connected with the signal transmitter unit, is wirelessly connect for what wireless audio signal received
Module is received, the output end of the wireless receiving module is electrically connected with the input terminal of the coffret；
The television system platform includes being converted for the signal that audio signal and information signal and/or command signal are converted
Module, the signal conversion module are electrically connected with the output end of the television system platform；
The wireless audio signal of the camera wireless receiving is transmitted to the signal conversion module through the coffret,
The output end through the television system platform is transmitted to TV after signal conversion module processing.
Further, the wireless audio signal of the camera wireless receiving is through the coffret, the television system
The output end of platform is transmitted to TV.
Further, the audio signal that the audio devices further include audio conversion unit output is command signal or information
The push-button unit of signal.
Further, the audio devices further include multiple control buttons for command signal input, and the control is pressed
The command signal of key input forms wireless command signals through the signal transmitter unit and launches.
Further, the wireless receiving module is bluetooth module；The coffret is USB interface.
Further, the camera includes：
Photographing module, the photographing module are equipped with camera lens and imaging sensor；
Memory, for being pre-stored standard gesture；
Initialization module, for establishes with described image sensor surface for the first coordinate plane the first coordinate system, with
Palmar aspect described in face when camera lens is the second coordinate system of the second coordinate plane, determines second coordinate system described first
Position in coordinate system；
Processing module, the hands movement image for handling the photographing module acquisition, obtains second coordinate system in institute
The video flowing of position video flowing and hand in second coordinate system in the first coordinate system is stated, gesture input is formed；
Identification module, the gesture for exporting the processing module is made comparisons with the standard gesture, if with described in one
Standard gesture matches, then using the standard gesture as recognition result, and is transmitted to the coffret；
The television system platform is equipped with memory module, stores in the memory module and is corresponded with the standard gesture
Command information.
Further, first coordinate system in first coordinate plane vertical direction line, horizontal direction line and
The vertical direction line, horizontal direction line vertical line be reference axis, with the center of described image sensor be the first origin；Institute
It states in the second coordinate plane, it is X-axis to take rectilinear direction at wrist, the straight line at palm lateral border perpendicular to X-axis is Y-axis；It is described
Second coordinate system using the X-axis, Y-axis and perpendicular to the X-axis, Y-axis Z axis as reference axis；Intersection point with the X-axis, Y-axis is
Second origin.
Further, second coordinate system is three-dimensional system of coordinate, and the position video flowing is in second coordinate system
The position video flowing of second origin；Video flowing of the hand in second coordinate system, including：The bending of finger and the rotation of palm
The video flowing of formation；The position video flowing is that the position video flowing of the second origin and described second is sat in second coordinate system
The video flowing of mark system rotation；Video flowing of the hand in second coordinate system, including：The video flowing of finger being formed by bending.
A kind of television system with function switching signal, including TV, television system platform and camera, the TV
It is connected to the output end of television system platform；The camera is connect by its coffret with the television system platform, also
Including：
Audio devices, the audio devices include：Audio conversion unit for receiving audio, sending out audio signal, with
And the signal transmitter unit for connecting with the audio conversion unit, emitting for wireless audio signal；
The television system platform includes being wirelessly connected with the signal transmitter unit, being received for wireless audio signal
Wireless receiving module and the signal conversion module converted for audio signal and information signal and/or command signal, the signal
Conversion module is electrically connected with the output end of the television system platform；
The wireless audio signal of the television system platform wireless receiving is handled through the signal conversion module, by the electricity
The output end of viewing system platform is transmitted to TV.
Further, the camera includes：
Photographing module, the photographing module are equipped with camera lens and imaging sensor；
Memory, for being pre-stored standard gesture；
Initialization module, for establishes with described image sensor surface for the first coordinate plane the first coordinate system, with
Palmar aspect described in face when camera lens is the second coordinate system of the second coordinate plane, determines second coordinate system described first
Position in coordinate system；
Processing module, the hands movement image for handling the photographing module acquisition, obtains second coordinate system in institute
The video flowing of position video flowing and hand in second coordinate system in the first coordinate system is stated, gesture input is formed；
Identification module, the gesture for exporting the processing module is made comparisons with the standard gesture, if with described in one
Standard gesture matches, then using the standard gesture as recognition result, and is transmitted to the coffret；
The television system platform is equipped with memory module, stores in the memory module and is corresponded with the standard gesture
Command information.
A kind of television system with function switching signal of the present invention can convert the audio into wireless signal and send
And show on TV, it, can be in relatively remote lower completion input convenient for the input of information such as image, word etc.；In conjunction with
Instruction execution and information input can be rapidly completed in Gesture Recognition, departing from the dependence to remote controler, improve TV
Operability.
Description of the drawings
Fig. 1 is a kind of module map of the television system embodiment 1 with function switching signal of the present invention；
Fig. 2 is the schematic diagram of the first coordinate system of camera in the present invention；
Fig. 3 is the schematic diagram of the second coordinate system of camera in the present invention；
Fig. 4 is a kind of module map of the television system embodiment 2 with function switching signal of the present invention.
Specific implementation mode
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Referring to Fig.1, Fig. 1 is a kind of module map of the television system embodiment 1 with function switching signal of the present invention, the electricity
Viewing system includes sequentially connected camera 10, television system platform 20, TV 30 and audio devices 40, television system platform 20
The contents such as image, audio are provided for TV 30.
Wherein, camera 10 includes photographing module 1, initialization module 2, processing module 3, identification module 4, memory 5, passes
Defeated interface 6 and bluetooth module 7.
For photographing module 1 for acquiring hands movement image, which is equipped with camera lens 11 and imaging sensor 12.Camera lens
11 be glass lens, plastic lens or plastics and glass hybrid lens.Imaging sensor 12 is a kind of light receiving semiconductor chip,
Its surface includes hundreds of thousands to millions of photodiodes, and charge is just will produce when photodiode is irradiated by light, is taken the photograph
As the figure that the image projection of the reception of module 1 is when on imaging sensor 12, and the distribution characterization of charge is taken on imaging sensor 12
Picture.
In order to accurately identify that the hands movement image of the acquisition of photographing module 1, the present invention are established using initialization module 2
12 surface of image taking sensor is the first coordinate system of the first coordinate plane, with face camera lens when palmar aspect be that the second coordinate is flat
Second coordinate system in face, and determine position of second coordinate system in first coordinate system.Since hand is in the second mark system
Interior position can determine, and then can determine position of the hand in the first coordinate system.
In preferable embodiment, the first coordinate system is as shown in Fig. 2, 12 surface of image taking sensor is flat for the first coordinate
Face, vertical direction line V, horizontal direction line H's and vertical direction line V, horizontal direction line H in first coordinate plane is vertical
Line L is reference axis, and the center of image taking sensor 12 is the first origin.In the second coordinate system as shown in figure 3, palmar aspect is second
In coordinate plane, it is X-axis to take rectilinear direction at wrist, the straight line at palm lateral border perpendicular to X-axis is Y-axis；Second coordinate system
Using X-axis, Y-axis and perpendicular to X-axis, Y-axis Z axis as reference axis；With the intersection point of X-axis, Y-axis for the second origin.
Processing module 3 handles the hands movement image that photographing module 1 acquires, and obtains the second coordinate system in the first coordinate system
The video flowing of position video flowing and hand in the second coordinate system forms gesture input.
Specifically, photographing module 1 acquires hand image, such as the speed acquisition of 30 frames/s, first frame hand figure with certain speed
As being transferred to processing module 3 after the processing of initialization module 2, processing module 3 obtain the first coordinate system, the second coordinate system with
And second position and hand position second coordinate system in of the coordinate system in the first coordinate system, and in this, as original state.
The initialized module 2 of second frame hand image is transferred to processing module 3 after handling, processing module 3 obtains the second of the second coordinate system
Position and hand position second coordinate system in of the origin in the first coordinate system, successively to third frame, the 4th frame ... hand figure
As processing, position video flowing and hand of the second origin of the second coordinate system in the first coordinate system are obtained in the second coordinate system
Video flowing forms gesture input.In this embodiment, position video flowing is the second origin in the second coordinate system in the first coordinate
Position video flowing in system；Video flowing of the hand in the second coordinate system includes the video that the bending of finger and the rotation of palm are formed
Stream.
Processing module 3 also has second of embodiment to the acquisition for inputting gesture, in this scenario, first frame hand image warp
It crosses after the processing of initialization module 2 and is transferred to processing module 3, processing module 3 obtains the first coordinate system, the second coordinate system and the
Position and hand position second coordinate system in of two coordinate systems in the first coordinate system.The second initialized module of frame hand image
Processing module 3 is transferred to after 2 processing, processing module 3 obtains the position of the second coordinate system, the second coordinate system in the first coordinate system
The second coordinate system is obtained successively to third frame, the 4th frame ... hand image procossing with position of the hand in the second coordinate system
The video flowing of position video flowing and hand in the second coordinate system in one coordinate system forms gesture input.In this embodiment,
Position video flowing is position video flowing and second coordinate system rotation of second origin in the first coordinate system in the second coordinate system
Video flowing；Video flowing of the hand in the second coordinate system includes the video flowing of the bending of finger.
In both the above embodiment, the first coordinate system that initialization module 2 is established is constant, and the second of foundation sits
Mark system may cause to change with hands movement.In the first embodiment, processing module 3 does not consider when handling hand image
The variation of two coordinate systems, and by hand, the variation of position shows in the second coordinate system by the variation of the second coordinate system.Second
In kind embodiment, initialization module 2 all re-establishes the second coordinate system in each frame hand image, and processing module 3 obtains often
Position of second coordinate system in the first coordinate system in one frame hand image, hand is in the second coordinate system in each frame hand image
Position.
The gesture of 4 receiving processing module 3 of identification module output, the standard gesture that will be pre-stored in the gesture and memory 5
It makes comparisons, if being matched with a standard gesture, using the standard gesture as recognition result, is transmitted to coffret 6.
Processing module 3 when detecting image in one's hands starts that gesture is identified, and identical hand figure is received in continuous several times
When picture, such as the interior hand image all same received at 0.5-3 seconds, identification gesture terminate.
The output end of bluetooth module 7 is electrically connected with the input terminal of coffret 6, and camera 10 is received by bluetooth module 7
Information can be sent out through coffret 6.
Television system platform 20 is equipped with memory module 201 and signal conversion module 203, in the memory module 201 storage with
The one-to-one command information of standard gesture；Signal conversion module 203 can convert audio signals into information signal or instruction
Signal exports, and as one of conversion regime, audio signal and information signal and command signal phase are equipped in signal conversion module 203
Corresponding data information, signal conversion module 203 carry out audio signal and information signal or command signal according to the data information
Conversion.
The identification module 4 of camera 10 is exported recognition result to television system platform 20, TV system by coffret 6
System platform 20 transfers corresponding command information according to the recognition result, is transmitted in corresponding to TV 30 further according to the command information
Hold.
Audio devices 40 include audio conversion unit 401, signal transmitter unit 402, push-button unit 403 and control button
404, audio conversion unit 401, which converts the audio into, to be exported for audio signal to signal transmitter unit 402, audio conversion unit 401
It can be the audio inputs converting unit such as microphone, microphone；Signal transmitter unit 402 is corresponding with the bluetooth module 7 of camera 10,
The two uses identical wireless communication protocol.Push-button unit 403 is used to control the audio signal that audio conversion unit 401 exports
Command signal or information signal, wherein command signal is control signal of the audio devices to television system platform, and information signal is
Image, word for showing on TV etc..For example, when in use, press & hold unit 403, audio conversion unit 401 will receive
To audio be converted into command signal and sent through signal transmitter unit 402；When unclamping push-button unit 403, audio conversion is single
The audio received is converted into information signal and is sent through signal transmitter unit 402 by member 401.Control button 404 is provided with
It is multiple, command signal can be formed by pressing control button 404 and launched through signal transmitter unit 402, for example, working as sound
When frequency device 40 has the function of remote-controlled television set, the setting of control button 404 is identical as existing television set top box remote controler.
It is common, power supply unit and button (not shown) are additionally provided on audio devices 40, power supply unit fills for audio
The work for setting 40 provides electric energy, and power supply unit can be dry cell, lithium battery and other accumulator, can charge-discharge battery；
Button is used to control the open and close of audio devices 40, can also further be arranged on audio devices 40 LED light or
Display unit, to indicate whether audio devices 40 are in running order.
Audio conversion unit 401 of the audio through audio devices 40 is converted to audio signal, and push-button unit 403 controls the audio
Signal is command signal or information signal, which launches through signal transmitter unit 402, forms wireless audio letter
Number；The bluetooth module 7 of camera 10 receives the wireless audio signal, forms audio signal and is transferred to TV through coffret 6
The signal conversion module 203 of system platform 20, signal conversion module 203 are converted signal in order to control or information signal, electricity
Viewing system platform 20 executes corresponding command signal and is transferred to 30 corresponding content of TV or TV 30 shows corresponding letter
Breath.A part in the wireless audio signal of 7 wireless receiving of bluetooth module of camera 10 is flat through coffret 6, television system
The output end of platform 20 is transmitted to TV 30, is played back as audio by TV 30.Wherein, audio refers to sound, audio signal
It is the electric signal for being loaded with acoustic information that sound is converted into, wireless audio signal is the electromagnetic wave letter for being loaded with audio signal
Number.
When 404 input instruction signal of control button, which launches through signal transmitter unit 402；Camera
10 bluetooth module 7 receives the command signal, and television system platform 20, television system platform 20 are transferred to through coffret 6
Corresponding control signal is formed according to the instruction and is transferred to TV, and TV 30 executes corresponding command signal according to the control signal.
With reference to Fig. 4, Fig. 4 is a kind of module map of the television system embodiment 2 with function switching signal of the present invention, the electricity
Viewing system includes sequentially connected camera 10, television system platform 20, TV 30 and audio devices 40, television system platform 20
The contents such as image, audio are provided for TV 30.
Wherein, camera 10 includes photographing module 1, initialization module 2, processing module 3, identification module 4,5 and of memory
USB interface 6, photographing module 1 are equipped with camera lens 11 and imaging sensor 12.
Difference is compared with Example 1, and the coffret of 2 camera 10 of the present embodiment uses USB interface, with more logical
The property used；Television system platform 20 includes memory module 201, bluetooth module (wireless receiving module) 202 and signal conversion module
203。
Audio devices 40 include audio conversion unit 401 and signal transmitter unit 402, audio of the audio through audio devices 40
Converting unit 401 is converted to audio signal, which launches through signal transmitter unit 402, forms wireless audio letter
Number；The bluetooth module (wireless receiving module) 202 of television system platform 20 receives the wireless audio signal, forms audio signal
It is transferred to signal conversion module 203, signal conversion module 203 is converted into command signal or information signal, and television system is flat
Platform 20 executes corresponding command signal and is transferred to 30 corresponding content of TV or TV 30 shows corresponding information.Bluetooth mould
Output end of the part through television system platform 20 in the wireless audio signal of 202 wireless receiving of block is transmitted to TV 30, by
TV 30 is played back as audio.
In other embodiments, audio devices further include the push-button unit and control button in embodiment 1, implementation process
It is flat that the audio signal or command signal sent out compared with Example 1 difference lies in audio devices is directly transferred to television system
Platform.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every utilization
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (9)
1. a kind of television system with function switching signal, including TV, television system platform and camera, the TV connects
It is connected to the output end of television system platform；The camera is connect by its coffret with the television system platform, special
Sign is, further includes：
Audio devices, the audio devices include：Audio conversion unit for receiving audio, sending out audio signal, Yi Jiyu
The audio conversion unit connects, for the signal transmitter unit of wireless audio signal transmitting；
The camera is equipped with the wireless receiving mould for being wirelessly connected, being received for wireless audio signal with the signal transmitter unit
Block, the output end of the wireless receiving module are electrically connected with the input terminal of the coffret；
The television system platform includes the signal modulus of conversion converted for audio signal and information signal and/or command signal
Block, the signal conversion module are electrically connected with the output end of the television system platform；
The wireless audio signal of the camera wireless receiving is transmitted to the signal conversion module through the coffret, described
The output end through the television system platform is transmitted to the TV after signal conversion module processing.
2. television system according to claim 1, which is characterized in that the wireless audio signal of the camera wireless receiving
Output end through the coffret, the television system platform is transmitted to TV.
3. television system according to claim 1, which is characterized in that the audio devices further include for controlling the sound
The audio signal of frequency converting unit output is the push-button unit of command signal or information signal.
4. according to claim 1-3 any one of them television systems, which is characterized in that the audio devices further include multiple use
It is formed wirelessly through the signal transmitter unit in the command signal of the control button of command signal input, the control button input
Transmitting command signals are gone out.
5. television system according to claim 1, which is characterized in that the wireless receiving module is bluetooth module；It is described
Coffret is USB interface.
6. television system according to claim 1, which is characterized in that the camera includes：
Photographing module, the photographing module are equipped with camera lens and imaging sensor；
Memory, for being pre-stored standard gesture；
Initialization module, for establishing with described image sensor surface for the first coordinate system of the first coordinate plane, with face
The palmar aspect when camera lens is the second coordinate system of the second coordinate plane, determines second coordinate system in first coordinate
Position in system；
Processing module, the hands movement image for handling photographing module acquisition obtain second coordinate system described the
The video flowing of position video flowing and hand in second coordinate system in one coordinate system forms gesture input；
Identification module, the gesture for exporting the processing module are made comparisons with the standard gesture, if with a standard
Gesture matches, then using the standard gesture as recognition result, and is transmitted to the coffret；
The television system platform is equipped with memory module, stores in the memory module and refers to correspondingly with the standard gesture
Enable information.
7. television system according to claim 6, which is characterized in that first coordinate system is with first coordinate plane
The vertical line of interior vertical direction line, horizontal direction line and the vertical direction line, horizontal direction line is reference axis, with the figure
As the center of sensor is the first origin；In second coordinate plane, it is X-axis, palm lateral border to take rectilinear direction at wrist
Place is Y-axis perpendicular to the straight line of X-axis；Second coordinate system is with the X-axis, Y-axis and Z axis perpendicular to the X-axis, Y-axis
Reference axis；With the intersection point of the X-axis, Y-axis for the second origin.
8. television system according to claim 6, which is characterized in that second coordinate system is three-dimensional system of coordinate, described
Position video flowing is the position video flowing of the second origin in second coordinate system；Video of the hand in second coordinate system
Stream, including：The video flowing that the bending of finger and the rotation of palm are formed；The position video flowing is the in second coordinate system
The video flowing of the position video flowing of two origins and second coordinate system rotation；Video flowing of the hand in second coordinate system,
Including：The video flowing of finger being formed by bending.
9. a kind of television system with function switching signal, including TV, television system platform and camera, the TV connects
It is connected to the output end of television system platform；The camera is connect by its coffret with the television system platform, special
Sign is, further includes：
Audio devices, the audio devices include：Audio conversion unit for receiving audio, sending out audio signal, Yi Jiyu
The audio conversion unit connects, for the signal transmitter unit of wireless audio signal transmitting；
The television system platform include be wirelessly connected with the signal transmitter unit, receive for wireless audio signal it is wireless
Receiving module and the signal conversion module converted for audio signal and information signal and/or command signal, the signal conversion
Module is electrically connected with the output end of the television system platform；
The wireless audio signal of the television system platform wireless receiving is handled through the signal conversion module, by the TV system
The output end of system platform is transmitted to TV；
The camera includes：
Photographing module, the photographing module are equipped with camera lens and imaging sensor；
Memory, for being pre-stored standard gesture；
Initialization module, for establishing with described image sensor surface for the first coordinate system of the first coordinate plane, with face
The palmar aspect when camera lens is the second coordinate system of the second coordinate plane, determines second coordinate system in first coordinate
Position in system；
Processing module, the hands movement image for handling photographing module acquisition obtain second coordinate system described the
The video flowing of position video flowing and hand in second coordinate system in one coordinate system forms gesture input；
Identification module, the gesture for exporting the processing module are made comparisons with the standard gesture, if with a standard
Gesture matches, then using the standard gesture as recognition result, and is transmitted to the coffret；
The television system platform is equipped with memory module, stores in the memory module and refers to correspondingly with the standard gesture
Enable information.
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| CN201410472289.7A CN105491429B (en) | 2014-09-16 | 2014-09-16 | A kind of television system with function switching signal |
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| CN102572568A (en) * | 2012-02-10 | 2012-07-11 | 合一网络技术(北京)有限公司 | Method, system and device for online video on demand on display screen |
| CN102905093A (en) * | 2012-10-23 | 2013-01-30 | 深圳市车音网科技有限公司 | Display manipulation method, device and system and user terminal |
| CN103179445A (en) * | 2013-03-26 | 2013-06-26 | Tcl集团股份有限公司 | Method, device and television (TV) for receiving external input signals |
| CN103956036A (en) * | 2013-10-14 | 2014-07-30 | 天津锋时互动科技有限公司 | Non-touch type remote control applied to household appliances |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2595405B1 (en) * | 2011-11-15 | 2020-02-26 | LG Electronics Inc. | Electronic device and method for providing contents recommendation service |
| KR101934099B1 (en) * | 2012-12-14 | 2019-01-02 | 삼성전자주식회사 | Contents playing apparatus, method for providing user interface using the contents playing apparatus, network server and method for controllong the network server |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572568A (en) * | 2012-02-10 | 2012-07-11 | 合一网络技术(北京)有限公司 | Method, system and device for online video on demand on display screen |
| CN102905093A (en) * | 2012-10-23 | 2013-01-30 | 深圳市车音网科技有限公司 | Display manipulation method, device and system and user terminal |
| CN103179445A (en) * | 2013-03-26 | 2013-06-26 | Tcl集团股份有限公司 | Method, device and television (TV) for receiving external input signals |
| CN103956036A (en) * | 2013-10-14 | 2014-07-30 | 天津锋时互动科技有限公司 | Non-touch type remote control applied to household appliances |
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