CN103458292A - Method and device for displaying video data of input source - Google Patents

Method and device for displaying video data of input source Download PDF

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Publication number
CN103458292A
CN103458292A CN2013103862848A CN201310386284A CN103458292A CN 103458292 A CN103458292 A CN 103458292A CN 2013103862848 A CN2013103862848 A CN 2013103862848A CN 201310386284 A CN201310386284 A CN 201310386284A CN 103458292 A CN103458292 A CN 103458292A
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Prior art keywords
input source
video data
information
video
idsplay order
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CN2013103862848A
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Chinese (zh)
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李创奇
王法
侯潇沐
王川
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Xiaomi Inc
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Xiaomi Inc
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Abstract

The invention discloses a method and device for displaying video data of an input source, and belongs to the technical field of electronics. The method comprises the steps of receiving the display instruction of the input source, displaying the information of the input source, starting the process that a target input source corresponding to the display instruction of the input source builds the communication connection, and canceling display of the information of the input source and playing analyzed video data when the video data of the target input source are analyzed. According to the method and device for displaying the video data of the input source, the generation of video emptiness can be prevented in the process of switching the input sources.

Description

A kind of method and apparatus that shows the video data of input source
Technical field
The present invention relates to electronic technology field, particularly a kind of method and apparatus that shows the video data of input source.
Background technology
Along with the fast development of electronic technology, each class of electronic devices all starts to realize intelligent, and intelligent television arises at the historic moment, and has obtained developing fast and popularizing.Intelligent television, have the full open model platform, is equipped with operating system, can various application programs can also be installed for playing television content, by application program, realizes more enriching and powerful function.
Intelligent television, for the interface that the user provides a plurality of input sources, can connect a plurality of different input sources, as TV box, computer, game machine, video disc player etc.The user can control intelligent television is switched between the different input sources that connect, to play the video data of different input source inputs.
In realizing process of the present invention, the inventor finds that at least there is following problem in above-mentioned technology:
Intelligent television is after receiving the input source idsplay order, need certain duration (being generally 1.5 seconds) just can be resolved to the video data of the target input source that will play, and then be switched to the target input source, during this period of time, intelligent television is in the blank screen state, without any displaying contents, can cause the video neutral.
Summary of the invention
In order to solve the problem of above-mentioned technology, the embodiment of the present invention provides a kind of method and apparatus that shows the video data of input source, to prevent the producing video neutral in the process of input source switching.Described technical scheme is as follows:
On the one hand, provide a kind of method that shows the video data of input source, described method comprises:
Receive the input source idsplay order;
Show input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order;
When being resolved to the video data of described target input source, cancelling the demonstration to described input source information, and play the video data be resolved to.
On the other hand, provide a kind of device that shows the video data of input source, described device comprises:
Receiver module, for receiving the input source idsplay order;
Display module, for showing input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order;
Playing module, for when being resolved to the video data of described target input source, cancel the demonstration to described input source information, and play the video data be resolved to.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
In the embodiment of the present invention, after receiving the input source idsplay order, show input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order, when being resolved to the video data of target input source, the demonstration of cancellation to input source information, and play the video data be resolved to, like this, in the process of the video data of resolving the target input source, can show input source information, thereby, in the process of input source switching, can prevent the generation of video neutral.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the method flow diagram of the video data of the demonstration input source that provides of the embodiment of the present invention;
Fig. 2 is the screen display schematic diagram that the embodiment of the present invention provides;
Fig. 3 is the apparatus structure schematic diagram of the video data of the demonstration input source that provides of the embodiment of the present invention;
Fig. 4 is the structural representation of the intelligent television that provides of the embodiment of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment mono-
The embodiment of the present invention provides a kind of method that shows the video data of input source, and as shown in Figure 1, the handling process of the method can comprise following step:
Step 101, receive the input source idsplay order.
Step 102, show input source information, and the process that establishes a communications link of the startup target input source corresponding with the input source idsplay order.
Step 103, when being resolved to the video data of target input source, cancel the demonstration to input source information, and play the video data be resolved to.
In the embodiment of the present invention, after receiving the input source idsplay order, show input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order, when being resolved to the video data of target input source, the demonstration of cancellation to input source information, and play the video data be resolved to, like this, in the process of the video data of resolving the target input source, can show input source information, thereby, in the process of input source switching, can prevent the generation of video neutral.
Embodiment bis-
The embodiment of the present invention provides a kind of method that shows the video data of input source, the executive agent of the method can be the terminal equipments such as intelligent television, display, the present embodiment be take intelligent television and is carried out the detailed description of scheme as executive agent as example, in the situation of other terminal equipment, similarly, in the present embodiment, repeat no more.
Below in conjunction with embodiment, the handling process shown in Fig. 1 is described in detail, content can be as follows:
Step 101, intelligent television receives the input source idsplay order.
Wherein, the input source idsplay order is the instruction shown for the video data to the input of target input source, the input source idsplay order that this input source idsplay order is corresponding target input source.
Optionally, the input source idsplay order can be sent by remote controller, and also, intelligent television receives the input source idsplay order that remote controller sends.
The triggering mode of input source idsplay order can have a variety of.
Mode one, the function choosing-item that input source is selected can be set in the function menu of intelligent television, control cursor movement to this option by the directionkeys of remote controller, then click definite key of remote controller, can enter the interface that input source is selected, wherein can comprise the option of a plurality of input sources, then control cursor movement to the option of certain input source by the directionkeys of remote controller, click definite key of remote controller, can trigger input source idsplay order that should input source.After intelligent television receives this input source idsplay order, can determine the input source target input source that this input source idsplay order is corresponding at cursor place.
Mode two, can set in advance on remote controller or intelligent TV set certain button with it is the input source switch key, click the interface that the input source switch key can show that input source is selected, wherein can comprise the option of a plurality of input sources, by the adopting consecutive click chemical reaction to the input source switch key, can control cursor moves between the option of different input sources, can trigger while reaching default duration after stopping adopting consecutive click chemical reaction and generate the input source idsplay order, after intelligent television receives this input source idsplay order, can determine the input source target input source that this input source idsplay order is corresponding at cursor place.For example, click input source switch key, intelligent television shows the interface that input source is selected, and the option that the option of the input source at cursor place is current input source, during second time input source switch key of adopting consecutive click chemical reaction, cursor movement is to the next option of the option of current input source, and the rest may be inferred.
Mode three, can be on remote controller or intelligent TV set a plurality of buttons are set with it, the respectively corresponding input source of each button, trigger the input source idsplay order of corresponding different input sources by clicking different buttons, after intelligent television receives the input source idsplay order, can determine that the corresponding input source of button that triggers the input source idsplay order is target input source corresponding to this input source idsplay order.
Step 102, intelligent television shows input source information, and the process that establishes a communications link of the startup target input source corresponding with the input source idsplay order.
Wherein, input source is the equipment to the intelligent television transmitting video data, and as TV box, computer, game machine, video disc player etc., intelligent television can be play the video data that is received from input source.Input source information is the relevant information of input source, input source information can be the input source information of current input source (being the video data input video source before of display-object input source), can be also the input source information of target input source (being input source to be shown).The target input source is that the user selects the input source shown.
If input source information is the input source information of current input source, this input source information can be current input source to the frame of video in the video data of intelligent television transmission so, it is the frame of video in the video data of the current broadcasting of intelligent television, accordingly, the processing of demonstration input source information can be as follows:
At first, intelligent television obtains the frame of video in the video data of current broadcasting.
Intelligent television can obtain a frame of video in the video data of current broadcasting, can be the frame of video of having play of obtaining storage, and can be also to intercept the frame of video shown.
Then, intelligent television shows the frame of video of obtaining.
Intelligent television finishes to play the video data of current input source transmission, and the frame of video of obtaining is carried out to static demonstration.
If input source information is the input source information of target input source, show that so the processing of input source information can be as follows:
At first, intelligent television obtains the input source information of target input source.
Wherein, the input source information of target input source can comprise a kind of or combination in any in following information: the video attribute information of target input source, interface message, facility information etc.Video attribute information is the attribute parameter information of the video of target input source transmission, as resolution (1080p, 720p etc.), frequency (frame number of unit interval), aspect ratio etc.Interface message is the relevant information of the connecting interface between target input source and intelligent television, as interface type etc., interface type can comprise HDMI(High Definition Multimedia Interface, HDMI (High Definition Multimedia Interface)), VGA(Video Graphics Array, Video Graphics Array) interface, TV(Television, TV) interface etc.
Then, intelligent television shows the input source information of obtaining.
Intelligent television finishes to play the video data of current input source transmission, and the input source information of target input source is shown, display format can arrange arbitrarily according to demand.As shown in Figure 2, provided the demonstration schematic diagram that a kind of intelligent television is shown the input source information of target input source.
The process that intelligent television and target input source establish a communications link can comprise following processing:
Intelligent television is first determined the target input source that the user selects and is connected the interface of this target input source, then the input source equipment be connected with this interface by this interface establish a communications link (for example the video card of intelligent television and computer establishes a communications link), the row data communication of going forward side by side, intelligent television is resolved the data that get, and final the parsing obtains video data.
In step 102, the operation that intelligent television shows the operation of input source information and starts the above-mentioned process that establishes a communications link can be carried out simultaneously.
Step 103, intelligent television, when being resolved to the video data of target input source, is cancelled the demonstration to input source information, and plays the video data be resolved to.
Till the input source information that in above-mentioned steps 102, intelligent television shows continues to be shown to the video data that step 103 is resolved to the target input source always, after intelligent television is resolved to the video data of target input source, just can be shown the video data be resolved to according to conventional processing, now be completed the demonstration to the video data of input source input.
In the embodiment of the present invention, after receiving the input source idsplay order, show input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order, when being resolved to the video data of target input source, the demonstration of cancellation to input source information, and play the video data be resolved to, like this, in the process of the video data of resolving the target input source, can show input source information, thereby, in the process of input source switching, can prevent the generation of video neutral.
Embodiment tri-
Technical conceive based on identical, the embodiment of the present invention provides a kind of device that shows the video data of input source, and as shown in Figure 3, described device comprises:
Receiver module 310, for receiving the input source idsplay order;
Display module 320, for showing input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order;
Playing module 330, for when being resolved to the video data of described target input source, cancel the demonstration to described input source information, and play the video data be resolved to.
Preferably, described receiver module 310, for:
Receive the input source idsplay order that remote controller sends.
Preferably, described display module 320, for:
Obtain the frame of video in the video data of current broadcasting;
Show the frame of video of obtaining.
Preferably, described display module 320, for:
Obtain the input source information of described target input source;
Show the input source information of obtaining.
Preferably, the input source information of described target input source comprises a kind of or combination in any in following information:
The video attribute information of target input source, interface message, facility information.
In the embodiment of the present invention, after receiving the input source idsplay order, show input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order, when being resolved to the video data of target input source, the demonstration of cancellation to input source information, and play the video data be resolved to, like this, in the process of the video data of resolving the target input source, can show input source information, thereby, in the process of input source switching, can prevent the generation of video neutral.
Embodiment tetra-
Please refer to Fig. 4, it shows the structural representation of the intelligent television that one embodiment of the invention provides.This intelligent television is for implementing the content displaying method that above-described embodiment provides, specifically:
Intelligent television 800 can comprise RF(Radio Frequency, radio frequency) circuit 810, the memory 820 that includes one or more computer-readable recording mediums, input unit 830, display unit 840, transducer 850, voicefrequency circuit 860, short range wireless transmission module 870, include more than one or one the parts such as the processor 880 of processing core and power supply 890.It will be understood by those skilled in the art that the intelligent television structure shown in Fig. 4 does not form the restriction to intelligent television, can comprise the parts more more or less than diagram, or combine some parts, or different parts are arranged.Wherein:
RF circuit 810 can be used for receiving and sending messages or communication process in, the reception of signal and transmission, especially, after the downlink information of base station is received, transfer to one or an above processor 880 and process; In addition, will relate to up data and send to base station.Usually, RF circuit 810 includes but not limited to antenna, at least one amplifier, tuner, one or more oscillator, transceiver, coupler, LNA(Low Noise Amplifier, low noise amplifier), duplexer etc.In addition, RF circuit 810 can also be by radio communication and network and other devices communicatings.Described radio communication can be used arbitrary communication standard or agreement, include but not limited to GSM (Global System of Mobile communication, global system for mobile communications), GPRS (General Packet Radio Service, general packet radio service), CDMA (Code Division Multiple Access, code division multiple access), WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)), LTE (Long Term Evolution, Long Term Evolution), Email, SMS (Short Messaging Service, Short Message Service) etc.Memory 820 can be used for storing software program and module, such as, memory 820 can be for the software program of storage of collected voice signal, realize that software program, the software program of realizing continuous speech recognition and the realization of keyword identification arrange software program of reminding item etc.Processor 880 is stored in software program and the module of memory 820 by operation, thereby carrying out various function application and data processes, such as the function of the function that " receives the input source idsplay order " in the embodiment of the present invention, " showing input source information; also start the process that the target input source corresponding with the input source idsplay order establishes a communications link ", function of " when being resolved to the video data of target input source; cancel the demonstration to input source information, and playing the video data be resolved to " etc.Memory 820 can mainly comprise storage program district and storage data field, wherein, but the required application program (such as sound-playing function, image player function etc.) of storage program district storage operation system, at least one function etc.; The data (such as voice data, phone directory etc.) that the use according to intelligent television 800 creates etc. can be stored in the storage data field.In addition, memory 820 can comprise high-speed random access memory, can also comprise nonvolatile memory, for example at least one disk memory, flush memory device or other volatile solid-state parts.Correspondingly, memory 820 can also comprise Memory Controller, so that the access of processor 880 and 830 pairs of memories 820 of input unit to be provided.
Input unit 830 can be used for receiving numeral or the character information of input, and generation arranges with the user and function is controlled relevant keyboard, mouse, action bars, optics or the input of trace ball signal.Particularly, input unit 830 can comprise touch-sensitive surperficial 831 and other input equipments 832.Touch-sensitive surperficial 831, also referred to as touch display screen or Trackpad, can collect the user or near touch operation (use any applicable objects such as finger, stylus or annex such as the user on touch-sensitive surperficial 831 or near the operation touch-sensitive surperficial 831) thereon, and drive corresponding jockey according to predefined formula.Optionally, touch-sensitive surperficial 831 can comprise touch detecting apparatus and two parts of touch controller.Wherein, touch detecting apparatus detects user's touch orientation, and detects the signal that touch operation is brought, and sends signal to touch controller; Touch controller receives touch information from touch detecting apparatus, and converts it to contact coordinate, then gives processor 880, and the order that energy receiving processor 880 is sent is also carried out.In addition, can adopt the polytypes such as resistance-type, condenser type, infrared ray and surface acoustic wave to realize touch-sensitive surperficial 831.Except touch-sensitive surperficial 831, input unit 830 can also comprise other input equipments 832.Particularly, other input equipments 832 can include but not limited to one or more in physical keyboard, function key (controlling button, switch key etc. such as volume), trace ball, mouse, action bars etc.
Display unit 840 can be used for demonstration by the information of user's input or offers user's information and the various graphical user interface of intelligent television 800, and these graphical user interface can consist of figure, text, icon, video and its combination in any.Display unit 840 can comprise display floater 841, optionally, can adopt the forms such as LCD (Liquid Crystal Display, liquid crystal display), OLED (Organic Light ?Emitting Diode, Organic Light Emitting Diode) to configure display floater 841.Further, touch-sensitive surperficial 831 can cover on display floater 841, when touch-sensitive surperficial 831 detect thereon or near touch operation after, send processor 880 to determine the type of touch event, with preprocessor 880, according to the type of touch event, provide corresponding vision output on display floater 841.Although in Fig. 4, touch-sensitive surperficial 831 with display floater 841 be as two independently parts realize input and input function, in certain embodiments, can by touch-sensitive surperficial 831 and display floater 841 integrated and realize the input and output function.
Intelligent television 800 also can comprise at least one transducer 850, such as optical sensor, motion sensor and other transducers.Particularly, optical sensor can comprise ambient light sensor and proximity transducer, and wherein, ambient light sensor can be regulated according to the light and shade of ambient light the brightness of display floater 841, proximity transducer can, when intelligent television 800 moves in one's ear, cut out display floater 841 and/or backlight.A kind of as motion sensor; Gravity accelerometer can detect on all directions the size of the acceleration that (is generally three axles); size and the direction of gravity be can detect when static, application (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, knock) of mobile phone attitude etc. can be used for identifying; As for intelligent television 800 other transducers such as configurable gyroscope, barometer, hygrometer, thermometer, infrared ray sensor also, do not repeat them here.
Voicefrequency circuit 860, loud speaker 861, microphone 862 can provide the audio interface between user and intelligent television 800.Voicefrequency circuit 860 can be transferred to loud speaker 861 by the signal of telecommunication after the voice data conversion received, and by loud speaker 861, is converted to voice signal output; On the other hand, microphone 862 is converted to the signal of telecommunication by the voice signal of collection, be converted to voice data after being received by voicefrequency circuit 860, after again voice data output processor 880 being processed, to send to another terminal, or export voice data to memory 820 in order to further process through RF circuit 810.Voicefrequency circuit 860 also may comprise earphone jack, so that communicating by letter of peripheral hardware earphone and intelligent television 800 to be provided.
Short range wireless transmission module 870 can be WIFI(wireless fidelity, Wireless Fidelity) module or bluetooth module etc.Intelligent television 800 by short range wireless transmission module 870 can help that the user sends and receive e-mail, browsing page and access streaming video etc., it provides wireless broadband internet access for the user.Although Fig. 4 shows short range wireless transmission module 870, be understandable that, it does not belong to must forming of intelligent television 800, fully can be as required in the scope of the essence that does not change invention and omit.
Processor 880 is control centres of intelligent television 800, utilize the various piece of various interface and the whole intelligent television of connection, be stored in software program and/or the module in memory 820 by operation or execution, and call the data that are stored in memory 820, carry out various functions and the deal with data of intelligent television 800, thereby intelligent television is carried out to integral monitoring.Optionally, processor 880 can comprise one or more processing cores; Preferably, processor 880 can integrated application processor and modem processor, and wherein, application processor is mainly processed operating system, user interface and application program etc., and modem processor is mainly processed radio communication.Be understandable that, above-mentioned modem processor also can not be integrated in processor 880.
Intelligent television 800 also comprises that the power supply 890(powered to all parts is such as battery), preferably, power supply can be connected with processor 880 logics by power-supply management system, thereby realizes the functions such as management charging, electric discharge and power managed by power-supply management system.Power supply 890 can also comprise one or more direct current or the random component such as AC power, recharging system, power failure detection circuit, power supply changeover device or inverter, power supply status indicator.
Although not shown, intelligent television 800 can also comprise camera, bluetooth module etc., does not repeat them here.Specifically in the present embodiment, the display unit of intelligent television 800 is touch-screen displays.Intelligent television 800 also includes memory, and one or more than one program, one of them or an above program are stored in memory, and are configured to carry out described one or above program package containing for carrying out the instruction of following operation by one or above processor:
Receive the input source idsplay order;
Show input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order;
When being resolved to the video data of described target input source, cancelling the demonstration to described input source information, and play the video data be resolved to.
Preferably, described reception input source idsplay order comprises:
Receive the input source idsplay order that remote controller sends.
Preferably, described demonstration input source information comprises:
Obtain the frame of video in the video data of current broadcasting;
Show the frame of video of obtaining.
Preferably, described demonstration input source information comprises:
Obtain the input source information of described target input source;
Show the input source information of obtaining.
Preferably, the input source information of described target input source comprises a kind of or combination in any in following information:
The video attribute information of target input source, interface message, facility information.
In the embodiment of the present invention, after receiving the input source idsplay order, show input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order, when being resolved to the video data of target input source, the demonstration of cancellation to input source information, and play the video data be resolved to, like this, in the process of the video data of resolving the target input source, can show input source information, thereby, in the process of input source switching, can prevent the generation of video neutral.
It should be noted that: the device of the video data of the demonstration input source that above-described embodiment provides is when showing the video data of input source, only the division with above-mentioned each functional module is illustrated, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, the internal structure that is about to device is divided into different functional modules, to complete all or part of function described above.In addition, the device of the video data of the demonstration input source that above-described embodiment provides belongs to same design with the embodiment of the method for the video data that shows input source, and its specific implementation process refers to embodiment of the method, repeats no more here.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can come the hardware that instruction is relevant to complete by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (10)

1. a method that shows the video data of input source, is characterized in that, described method comprises:
Receive the input source idsplay order;
Show input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order;
When being resolved to the video data of described target input source, cancelling the demonstration to described input source information, and play the video data be resolved to.
2. method according to claim 1, is characterized in that, described reception input source idsplay order comprises:
Receive the input source idsplay order that remote controller sends.
3. method according to claim 1, is characterized in that, described demonstration input source information comprises:
Obtain the frame of video in the video data of current broadcasting;
Show the frame of video of obtaining.
4. method according to claim 1, is characterized in that, described demonstration input source information comprises:
Obtain the input source information of described target input source;
Show the input source information of obtaining.
5. method according to claim 1, is characterized in that, the input source information of described target input source comprises a kind of or combination in any in following information:
The video attribute information of target input source, interface message, facility information.
6. a device that shows the video data of input source, is characterized in that, described device comprises:
Receiver module, for receiving the input source idsplay order;
Display module, for showing input source information, and the process that establishes a communications link of the startup target input source corresponding with described input source idsplay order;
Playing module, for when being resolved to the video data of described target input source, cancel the demonstration to described input source information, and play the video data be resolved to.
7. device according to claim 6, is characterized in that, described receiver module, for:
Receive the input source idsplay order that remote controller sends.
8. device according to claim 6, is characterized in that, described display module, for:
Obtain the frame of video in the video data of current broadcasting;
Show the frame of video of obtaining.
9. device according to claim 6, is characterized in that, described display module, for:
Obtain the input source information of described target input source;
Show the input source information of obtaining.
10. device according to claim 6, is characterized in that, the input source information of described target input source comprises a kind of or combination in any in following information:
The video attribute information of target input source, interface message, facility information.
CN2013103862848A 2013-08-30 2013-08-30 Method and device for displaying video data of input source Pending CN103458292A (en)

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CN104850522A (en) * 2015-06-10 2015-08-19 联想(北京)有限公司 Signal output method and device
CN104850522B (en) * 2015-06-10 2018-12-14 联想(北京)有限公司 A kind of signal output method and device
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CN110830761A (en) * 2018-08-10 2020-02-21 杭州海康威视数字技术股份有限公司 Television wall scene switching method and device, electronic equipment and storage medium
CN110830761B (en) * 2018-08-10 2020-12-29 杭州海康威视数字技术股份有限公司 Television wall scene switching method, device and system, electronic equipment and storage medium

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