CN1728794A - Method and device for transmitting audio signal of video source equipment - Google Patents
Method and device for transmitting audio signal of video source equipment Download PDFInfo
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- CN1728794A CN1728794A CN 200410053217 CN200410053217A CN1728794A CN 1728794 A CN1728794 A CN 1728794A CN 200410053217 CN200410053217 CN 200410053217 CN 200410053217 A CN200410053217 A CN 200410053217A CN 1728794 A CN1728794 A CN 1728794A
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Abstract
When being connected to video synchronous equipment through video interface line such as HDMI connection line, the video source device receives signal of audio format from video synchronous equipment. According to received sampling rate of data synchronization in audio format, the video source device reinstalls sampling rate of own audio signal. Based on sampling rate reinstalled, the video source device receives synchronous input of audio signal and outputs it to the video synchronous equipment. The video synchronous equipment, which has different format of audio frequency from the video source device, can normally update output of audio signal provided from the video source device.
Description
Technical field
The present invention is that source video sequence equipment is in advance according to audio format change sampling ratio transmit audio signals, the audio signal that its audio video synchronization equipment is provided source video sequence equipment is according to audio formatization and normal source video sequence equipment sound intermediate frequency method of communicating signals and the device thereof that upgrades.
Background technology
In general, renewal as STB and the source video sequence equipment of handling certain video data with source video sequence equipment receiving video data then outwards the audio video synchronization equipment such as DTV of output be to be connected by certain forming mutually as HDMI video interface connecting lines such as (High Definition Media Interface).And Fig. 1 shows that these general source video sequence equipment are connected the legend of form with audio video synchronization equipment.
As shown in the figure, when audio video synchronization equipment 100 is connected with source video sequence equipment 110,110 inductions of source video sequence equipment are from HPD (the Hot Plug Detection) signal of audio video synchronization equipment 100 outputs, thereby the existence of the audio video synchronization equipment 100 that affirmation is connected with self, by EDID (Extended Display Identification), obtain the details of audio video synchronization equipment 100 simultaneously from 100 outputs of audio video synchronization equipment.Source video sequence equipment 110 utilizes these information, according to the display environment converting video frequency data of audio video synchronization equipment 100, be sent to audio video synchronization equipment 100 by TMDS (the Transmission Minimized Differential Signal) mode that is referred to as the plate connection.And whether the support that comprises the battery saving mode function of the manufacturer ID as demonstration manufacturing firm, the manufacturing ID that shows production number, display unit among the EDID reaches clocking information etc., particularly also includes the audio formatization of audio video synchronization equipment.
Then, source video sequence equipment can obtain the audio format information of audio video synchronization equipment by analyzing EDID.
Even if but source video sequence equipment is according to the audio format information of audio video synchronization equipment, under the present HDMI environment of developing, the device-independent audio format kind of source video sequence equipment and audio video synchronization and on the basis of the sampling ratio of a type, with certain audio signal synchronous driving to the associated video synchronizer.So in the middle of the audio video synchronization equipment of the sampling ratio different with source video sequence equipment, the problem of the audio signal that is sent to will take place normally to upgrade.
Summary of the invention
Then, the present invention develops, can be provided at source video sequence equipment in advance according to audio format change sampling ratio transmit audio signals in order to solve the above-mentioned problem points of mentioning, make its audio video synchronization equipment the audio signal that is provided at source video sequence equipment, according to audio formatization and normal that upgrade, be connected source video sequence equipment sound intermediate frequency method of communicating signals and device thereof on the video interface connecting line.
So the present invention of purpose, when source video sequence equipment passes through as video interface connecting lines such as HDMI connecting lines, receive the related audio formatted data from above-mentioned audio video synchronization equipment, reset the sampling ratio of self audio signal according to the sampling ratio of coupling, carry out exporting from audio video synchronization equipment then synchronously with certain audio signal on this basis.So just can solve the audio format kind of in the past ignoring audio video synchronization equipment, audio sample ratio at self source video sequence equipment is synchronized with audio signal, outputs to audio video synchronization equipment and the above-mentioned audio video synchronization equipment that causes can't normally upgrade the problem of audio signal.
For this reason, the present invention specifically be by the video interface connecting line when audio video synchronization equipment is connected to source video sequence equipment, the recorded phase I waited in the audio format indication code name of above-mentioned audio video synchronization equipment;
When the data of record audio format indication of above-mentioned phase I of input code name, analyze the data of being imported, the second stage of the audio format indication code name of the audio video synchronization equipment of detection record;
Whether the audio format indication code name of detected audio video synchronization equipment differentiates self with the source video sequence equipment of setting in advance related audio format indication identical phase III of code name in the middle of above-mentioned second stage;
The result who judges in the above-mentioned phase III, the audio format indication code name of the audio format indication code name of audio video synchronization equipment and above-mentioned source video sequence equipment resets the quadravalence section of the sampling ratio (sampling rate) of audio signal not simultaneously according to the audio formatization of above-mentioned audio video synchronization equipment;
Carry out synchronously according to sampling ratio and audio signal that the audio formatization of above-mentioned audio video synchronization equipment resets in above-mentioned quadravalence section, the five-stage that is sent to above-mentioned audio video synchronization equipment forms its characteristics.
Also use simultaneously, and above-mentioned video interface connecting line is to use the HDMI connecting line to be its characteristics with the data extending EDID of the audio format indication code name that records above-mentioned audio video synchronization equipment.
In addition, other forms of the present invention is the source video sequence connecting portion that is connected with audio video synchronization equipment; Analyze the EDID that above-mentioned audio video synchronization equipment is imported by above-mentioned source video sequence connecting portion, detect the data analysis portion of the audio format indication code name of the audio video synchronization equipment that in the middle of above-mentioned EDID, is write down; Form according to the audio format indication coupling storage correlated sampling changing value of the audio video synchronization equipment that detects from above-mentioned data analysis portion; According to sampling changing value, the sampling ratio of audio signal is adjusted into the microcomputer of selected audio video synchronization equipment sampling ratio according to user's keyboard operation signal in the above table storage; Under the control of microcomputer, the sampling ratio of audio signal is adjusted into the sampling ratio of above-mentioned selecteed audio video synchronization equipment, the audio converter of exporting synchronously from audio signal and above-mentioned controlled sampling ratio of the input of external audio processor; Audio signal to above-mentioned audio converter output is decoded, and forms the TMDS transmitter that outputs to above-mentioned source video sequence interface portion.
As above described in detail, carry out synchronously according to sampling ratio and audio signal that the related audio format that is connected as the audio video synchronization equipment of video interface connecting lines such as HDMI connecting line resets according to the audio signal transfer approach in the source video sequence equipment of the present invention and device thereof, make it output to relevant audio video synchronization equipment.Therefore can solve the audio format kind of ignoring audio video synchronization equipment in the past, the audio sample ratio and the audio signal of source video sequence equipment output to audio video synchronization equipment synchronously, and its audio video synchronization equipment can't normally upgrade the problem of its audio signal.
Description of drawings
What Fig. 1 showed is the connection status example that represents source video sequence equipment and audio video synchronization equipment by general video interface connecting line;
What Fig. 2 a and Fig. 2 b showed is according to the audio signal transfer approach in the middle of the source video sequence equipment of the present invention;
Fig. 3 is the EDID example of the recording of video synchronizer audio format indication code name according to the present invention;
Fig. 4 is according to the present invention, with the coupling form examples of audio format coupling related audio format indication code name and sampling ratio;
Fig. 5 is the picture that shows the audio signal conveyer according to the present invention in source video sequence equipment.
* the symbol description * of accompanying drawing major part
500: audio signal conveyer 510: the source video sequence interface portion
520: data analysis portion 530: form
540: microcomputer 550: audio converter
551: the synchronous portion 552 of audio signal: clock generator
553: sampling ratio adjustment part 560:TMDS transmitter
600: source video sequence equipment 700: audio video synchronization equipment
710: audio video synchronization interface portion 720:TMDS receiver
Embodiment
Below describe the present invention in detail by accompanying drawing.
At first, Fig. 2 a and Fig. 2 b are the audio signal transfer approach examples according to source video sequence equipment of the present invention.
Shown in Fig. 2 a, source video sequence equipment of the present invention passes through as interface connecting lines such as HDMI connecting lines, when connecting audio video synchronization equipment, when it connected, above-mentioned audio video synchronization equipment can periodically be carried out the induction action S200 whether HPD (the Hot Plug Detection) signal to automatic input exists according to the function of plug and play (PnP).
S201 when S200 audio video synchronization equipment is sensed the HPD signal of being imported in this stage, detect HPD voltage of signals rank S202, compare back S203 with the voltage level of stipulating in advance again, wait for that according to its comparative result S204 writes down the EDID of the related audio format indication code name of above-mentioned audio video synchronization equipment.
For example, at this stage S203, when the HPD signal voltage rank of above-mentioned audio video synchronization equipment input does not reach expection setting voltage rank, can change induction at the existence whether stage S200 of audio video synchronization equipment according to the HPD signal of being imported; On the contrary, the HPD signal voltage rank that above-mentioned audio video synchronization equipment is imported surpasses when expecting the assigned voltage rank that will authorize, and the EDIDS204 that input is write down will be waited in the audio format indication code name of above-mentioned audio video synchronization equipment.
At this moment, in the middle of the present invention as previously mentioned, not only the related audio of audio video synchronization equipment format indication code name can be included in the EDID of above-mentioned audio video synchronization equipment, and then be input to above-mentioned source video sequence equipment, also can in the middle of other data formattings different, the record audio format indicate code name, when transmitting EDID, be sent to simultaneously in the middle of the source video sequence equipment with EDID.Then its variation can be varied.
Simultaneously, difference according to stage S204, the EDID that input is write down can be waited in the audio format indication code name of above-mentioned audio video synchronization equipment, S206 when finishing its input from above-mentioned audio video synchronization equipment input EDID (S205), can transmit the certain circular information that finishes of S207 to audio video synchronization equipment, analyze the EDID S208 that is imported at other stages S205 simultaneously in addition, whether the audio format indication code name of judging the audio video synchronization equipment that is write down exists back S209, according to its as a result S209 when audio format indication code name exists, detect S210 related audio format indication code name, record S211 is in the middle of transducer or database; When audio format indication code name does not exist, return to initial stage HPD induction of signal stage S200 behind default (default) S212.
Secondly, at stage (S210, when S211) detection record is to the audio format indication code name of audio video synchronization equipment, to the user's of audio video synchronization equipment transmit audio signals selection S213 situation, read out in the audio format indication code name S214 in the middle of the audio video synchronization equipment according to hope.When audio format indication code name S215 that existence is read, compare S216 with the source video sequence equipment self related audio format indication code name of in above-mentioned source video sequence equipment, setting in advance, whether will reset above-mentioned source video sequence equipment self audio signal sampling ratio (sampling rate) according to its comparative result decision.That is, when the audio format indication code name of above-mentioned audio video synchronization equipment is identical with the audio format indication code name of above-mentioned source video sequence equipment, keep the audio signal sampling ratio of current source video sequence equipment self; And the audio format indication code name of the audio format indication code name of above-mentioned audio video synchronization equipment and above-mentioned source video sequence equipment is not simultaneously, detect the audio signal sampling ratio (sampling rate) of S217 coupling at the related audio format indication code name of above-mentioned video equipment, it is at the detected audio signal sampling ratio of stage S217 that above-mentioned source video sequence equipment self audio signal sampling ratio is reset S218.
At last, in the middle of stage S218 according to the audio formatization of audio video synchronization equipment, when resetting the audio signal sampling ratio (sampling rate) of source video sequence equipment,, be sent in the middle of the above-mentioned audio video synchronization equipment of S220 with sampling ratio that resets and the synchronous S219 of audio signal.
At this stage S215, be judged as the audio format indication code name that records audio video synchronization equipment in the source video sequence equipment or at stage S216, the audio format indication code name of audio video synchronization equipment and the audio format indication code name of source video sequence equipment are judged as when identical, source video sequence equipment self audio sample ratio is synchronized with audio signal S221, is sent in the middle of the audio video synchronization equipment according to above-mentioned extreme S220.
Fig. 3 is the EDID legend that the audio format indication code name according to audio video synchronization equipment of the present invention is write down.As shown in the figure, use not only records manufacturing firm/food identification person of display video synchronizer in EDID of the present invention, EDID formatted version difference, basic demonstration and the data of characteristics thereof, have certain size of data but also record, indicate the audio format indication code name of the audio formatization of food synchronizer according to the present invention.
In addition, above-mentioned EDID no more than with the data formatting form of the audio format indication code name that records the food synchronizer, and in the middle of the other data formatting different with above-mentioned EDID record audio format indication code name, when transmitting above-mentioned EDID, make it simultaneously or be sent to separately in the middle of the source video sequence equipment.Then the version to this is diversified.
Fig. 4 is the form of indicating code name and sampling ratio according to the present invention with audio format coupling related audio format separately.As shown in the figure, related audio format indication code name mates related audio separately with above-mentioned audio format indication code name simultaneously and formats optimal sampling ratio according to coming record with the audio format coupling.And the sampling ratio information that these match information promptly are complementary with audio format indication code name is can use during with audio video synchronization equipment transmit audio signals in above-mentioned source video sequence equipment.In addition, audio format indication code name can send out from the associated video synchronizer when connecting audio video synchronization equipment.And above-mentioned coupling form preferably adopts color look up table (look-up-table) for good.
As shown in Figure 5, source video sequence audio signal conveyer of the present invention comprises: with the source video sequence interface portion 510 that is connected with audio signal conveyer 500 audio video synchronization equipment 700 of the present invention; Above-mentioned audio video synchronization equipment 700 is analyzed the EDID by above-mentioned source video sequence interface portion 510 inputs, detects the data analysis portion 520 at the audio format indication code name of the audio video synchronization equipment 700 that above-mentioned EDID write down; With according to the audio format indication code name coupling of the audio video synchronization equipment 700 that detects from above-mentioned data analysis portion 520, the form 530 of storage correlated sampling changing value; The sampling changing value of being stored according to above table 530, the sampling ratio of audio signal with the microcomputer 540 of user by the sampling ratio adjustment control of the selected audio video synchronization equipment 700 of keyboard operation signal; Under 540 control of above-mentioned microcomputer, the sampling ratio of audio signal is adjusted into the sampling ratio of above-mentioned selected audio video synchronization equipment, then the audio converter 550 that audio signal and the above-mentioned sampling ratio of adjusting from the input of external audio processor are carried out Synchronous Processing; Audio signal to above-mentioned audio converter 550 outputs is decoded, and the TMDS transmitter 560 that outputs to above-mentioned source video sequence interface portion 510 constitutes.
So the audio signal conveyer 500 of the present invention that constitutes is installed in the middle of certain source video sequence equipment 600, when audio video synchronization equipment 700 connected by supporting certain video interface connecting lines such as HDMI connecting line as plug-and-play feature, above-mentioned audio video synchronization equipment 700 was input to above-mentioned source video sequence interface portion 510 to the EDID that self TMDS receiver 720ROM is stored by audio video synchronization interface portion 710 when it connects.
Next, above-mentioned data analysis portion 520 analyzes the EDID of the audio video synchronization equipment that is input to from above-mentioned source video sequence interface portion 510, detection records form 530 behind the audio format indication code name of the audio video synchronization equipment that EDID records, and above table 530 is matched with the REGEDIT that the correlated sampling changing value is stored as the audio format indication code name according to data analysis portion 520 detected audio video synchronization equipment, preferably adopts color look up table.
Simultaneously, when above table 530 records the audio format indication code name of audio video synchronization equipment, it is the sampling changing value that code name is complementary that above-mentioned microcomputer 500 reads according to the audio formatization that will carry out the selected audio video synchronization equipment of user that audio signal transmits from above table, in the middle of the sampling changing value that it is read the control signal that can reset the audio signal sampling ratio of source video sequence equipment self is being outputed in the middle of the audio converter 550.
Therefore, above-mentioned audio converter 550 is under the control of microcomputer 500, the sampling ratio of audio signal is reset source video sequence equipment self audio signal sampling ratio according to the sampling changing value that is read at above table 530, and then audio signal and the above-mentioned sampling ratio that resets from external audio processor input carried out synchronously, thereby export with TMDS transmitter 560.And above-mentioned audio converter 550 as shown in Figure 5, under the control of above-mentioned microcomputer 540, adjusts the sampling ratio adjustment part 553 that obtains the sampling ratio of audio signal with the sampling ratio of above-mentioned selected audio video synchronization equipment; At above-mentioned sampling ratio adjustment part 553 sampling ratios, produce the clock generator 552 of synchronizing clock signals according to the audio video synchronization equipment of being adjusted; After carrying out synchronously, above-mentioned clock generator 552 synchronizing clock signals that produces and the signal of importing at audio process output to the synchronous portion 551 of audio signal of above-mentioned TMDS transmitter 560.
Simultaneously, above-mentioned audio converter 550 resets the audio signal that is input to by the external audio processor according to the audio formatization of audio video synchronization equipment sampling ratio carries out Synchronous Processing when outputing to TMDS transmitter 560, the audio signal of 560 pairs of above-mentioned audio converter 550 outputs of above-mentioned TMDS transmitter is decoded, and outputs to the audio video synchronization interface portion 710 of associated video synchronizer 700 by source video sequence interface portion 510.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Therefore, the technical scope of this invention can not be confined to the detailed description on the detailed book; Must determine its technical scope according to the scope of patent application.
Claims (8)
1, a kind of audio signal transfer approach of source video sequence equipment comprised as the next stage:
By the video interface connecting line, when audio video synchronization equipment connected source video sequence equipment, the phase I of input record data waited in the audio format indication code name of above-mentioned audio video synchronization equipment at above-mentioned audio video synchronization equipment;
During from the output of above-mentioned audio video synchronization equipment, analyze the data of above-mentioned input at above-mentioned phase I audio format indication code name recorded data, and the second stage of the audio format indication code name of the audio video synchronization equipment of detection record;
Whether equal judgement indicate code name phase III in the audio format indication code name of the above-mentioned second extreme audio video synchronization equipment that detects and the source video sequence equipment self related audio format set in advance;
The result who judges in the above-mentioned phase III, the audio format indication code name of the audio format indication code name of audio video synchronization equipment and above-mentioned source video sequence equipment resets the quadravalence section of the sampling ratio (sampling rate) of audio signal not simultaneously according to the audio formatization of above-mentioned audio video synchronization equipment;
In above-mentioned quadravalence section, carry out making it be sent to the five-stage of audio video synchronization equipment synchronously in sampling ratio and audio signal that the audio formatization according to above-mentioned audio video synchronization equipment resets.
2, as the audio signal transfer approach of the described source video sequence equipment of above-mentioned claim 1, the above-mentioned phase I comprised as the next stage:
When audio video synchronization equipment is connected to source video sequence equipment, respond to the 11st stage whether automatic HPD (the Hot Plug Detection) signal of exporting exists by the video interface connecting line at above-mentioned audio video synchronization equipment;
When sensing HPD signal from the output of above-mentioned audio video synchronization equipment in the 11st stage, the 12nd stage that above-mentioned HPD voltage of signals rank and the electric pressure that expection is set compare;
At above-mentioned the 12nd stage comparative result, when the HPD signal voltage rank of above-mentioned audio video synchronization equipment output surpassed the electric pressure of expection setting, the 13rd stage of input record data waited in the audio format indication code name of above-mentioned audio video synchronization equipment.
3, the audio signal transfer approach of source video sequence equipment as claimed in claim 1 or 2 is characterized by:
The data that write down the audio format indication code name of above-mentioned audio video synchronization equipment are EDID (Extended Display Identification).
4, the audio signal transfer approach of source video sequence equipment as claimed in claim 1 or 2 is characterized by:
Above-mentioned video interface connecting line is HDMI (High Definition Media Interface) connecting line.
5, the audio signal transfer approach of source video sequence equipment as claimed in claim 3, above-mentioned quadravalence section comprised as the next stage:
The result who judges in the above-mentioned phase III, the audio format indication code name of the audio format indication code name of audio video synchronization equipment and source video sequence equipment detects the 41st stage of the correlated sampling changing value of the audio format indication code name that is matched with above-mentioned audio video synchronization equipment not simultaneously at the form of expection installation;
According to the correlated sampling changing value of the audio video synchronization equipment that detects in above-mentioned the 41st stage, reset the 42nd stage of the sampling ratio of audio signal.
6, the audio signal transfer approach of source video sequence equipment as claimed in claim 4 is characterized by:
Above table is a color look up table.
7, a kind of source video sequence equipment sound intermediate frequency device for signalling comprises:
The source video sequence interface portion that audio video synchronization equipment connects;
By the EDID of the above-mentioned audio video synchronization equipment of above-mentioned source video sequence interface portion long-range raid input, detect the data analysis portion of the audio format indication code name of the audio video synchronization equipment that above-mentioned EDID writes down;
The form that mates the storage of correlated sampling changing value according to the audio format indication code name of the detected audio video synchronization equipment of above-mentioned data analysis portion;
In above table,, the sampling changing value adjustment of audio signal is controlled to be microcomputer according to the selected audio video synchronization equipment of user's keyboard operation sampling ratio according to the sampling changing value of storage;
Under the control of above-mentioned microcomputer, the sampling ratio of audio signal is adjusted into the sampling ratio of above-mentioned selected audio video synchronization equipment, is synchronized with the voice frequency sender of the sampling ratio output of above-mentioned adjustment from the audio signal of external audio processor input;
Audio signal to above-mentioned voice frequency sender output is decoded, and outputs to the TMDS transmitter of above-mentioned source video sequence interface portion.
8, source video sequence equipment sound intermediate frequency device for signalling as claimed in claim 7, above-mentioned voice frequency sender comprises:
Under the control of above-mentioned microcomputer, the sampling ratio of audio signal is adjusted into the sampling ratio adjustment part of the sampling ratio of above-mentioned selected audio video synchronization equipment;
The sampling ratio of the audio video synchronization equipment of adjusting according to above-mentioned sampling ratio adjustment part produces the clock generator of synchronizing clock signals;
Carry out outputing to above-mentioned TMDS transmitter synchronously at the synchronizing clock signals of above-mentioned clock generator generation and the audio signal of external audio processor input.
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| CN 200410053217 CN1728794A (en) | 2004-07-28 | 2004-07-28 | Method and device for transmitting audio signal of video source equipment |
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| CN 200410053217 CN1728794A (en) | 2004-07-28 | 2004-07-28 | Method and device for transmitting audio signal of video source equipment |
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| CN101573977A (en) * | 2006-11-07 | 2009-11-04 | 索尼株式会社 | Transmitting device, video signal transmitting method in transmitting device, recieving device and video signal recieving method in recieving device |
| CN101202868B (en) * | 2006-12-12 | 2011-04-13 | 普诚科技股份有限公司 | Image and sound data synchronization method for multimedia interface and related device |
| CN101558646B (en) * | 2006-12-14 | 2012-01-04 | 松下电器产业株式会社 | Video/audio output device, audio output device, video/audio reproducing device, video/audio data reproducing system, and video/audio data reproducing method |
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| CN102737680A (en) * | 2012-05-21 | 2012-10-17 | Tcl通力电子（惠州）有限公司 | Method for realizing high-definition audio input and power amplifier equipment |
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| CN106210589A (en) * | 2006-11-07 | 2016-12-07 | 索尼株式会社 | Transmission equipment |
| CN103533269B (en) * | 2006-11-07 | 2017-01-11 | 索尼株式会社 | Transmitter and transmitting method |
| CN103533269A (en) * | 2006-11-07 | 2014-01-22 | 索尼株式会社 | Transmitter and transmitting method |
| CN106210589B (en) * | 2006-11-07 | 2019-07-12 | 索尼株式会社 | A kind of communication system for being communicated between sending device and receiving device |
| CN101573977A (en) * | 2006-11-07 | 2009-11-04 | 索尼株式会社 | Transmitting device, video signal transmitting method in transmitting device, recieving device and video signal recieving method in recieving device |
| CN101202868B (en) * | 2006-12-12 | 2011-04-13 | 普诚科技股份有限公司 | Image and sound data synchronization method for multimedia interface and related device |
| CN101558646B (en) * | 2006-12-14 | 2012-01-04 | 松下电器产业株式会社 | Video/audio output device, audio output device, video/audio reproducing device, video/audio data reproducing system, and video/audio data reproducing method |
| CN102737680A (en) * | 2012-05-21 | 2012-10-17 | Tcl通力电子（惠州）有限公司 | Method for realizing high-definition audio input and power amplifier equipment |
| CN102737680B (en) * | 2012-05-21 | 2016-01-13 | Tcl通力电子（惠州）有限公司 | Method for realizing high-definition audio input and power amplifier equipment |
| US10250927B2 (en) | 2014-01-31 | 2019-04-02 | Interdigital Ce Patent Holdings | Method and apparatus for synchronizing playbacks at two electronic devices |
| CN106063283B (en) * | 2014-01-31 | 2019-06-11 | 汤姆逊许可公司 | Method and apparatus for synchronizing the playback at two electronic equipments |
| CN106063283A (en) * | 2014-01-31 | 2016-10-26 | 汤姆逊许可公司 | Method and apparatus for synchronizing playbacks at two electronic devices |
| CN106134210A (en) * | 2014-03-24 | 2016-11-16 | Lg电子株式会社 | HDMI is utilized to carry out the apparatus and method of data transmission and reception |
| CN106134210B (en) * | 2014-03-24 | 2019-04-16 | Lg电子株式会社 | The device and method for carrying out data transmission and reception using HDMI |
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