CN102223512B - System and device for supporting conversion of multi-format audio-video signal and serial data - Google Patents
System and device for supporting conversion of multi-format audio-video signal and serial data Download PDFInfo
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Abstract
The invention discloses a system and a device for supporting the conversion between a multi-format audio-video signal and serial data, which are used for the technical field of audio-video information processing, and aim at solving the problems that an SDI (Serial Digital Interface) can not transmit non-standard type video, the SDI audio-video interface conversion technology is complex, and the existing SDI does not support high resolution. On the basis of Displayport interface standard, the embodiment of the invention supports the conversion between the multi-format audio-video signal and the serial-port data, solves the problem that SDI interface can not transmit the non-standard system type video, and is compatible with the existing HD-SDI (High Definition-Serial Digital Interface) matrix. The invention has the functions of audio, video and serial-port data synchronic transmission and nondestructive conversion, and has the advantages of simple hardware, low cost and the like.
Description
Technical field
The present invention relates to the audio/video information processing technology field, relate in particular to a kind of system and method for supporting multi-format audio-video signal and serial data conversion.
Background technology
In present safety defense monitoring system, for solving the demonstration problem of SDI interface, inevitably to use video interface and the mutual equipment of changing of SDI interface such as VGA, DVI, HDMI, CVBS.Existing SDI video interface switch technology has following shortcoming: 1, realize technical sophistication, conversion need to be through the complicated processing such as overcompression blanking, up/down conversion, frame rate conversion, technical realization more complicated between the video of distinct interface standard and the SDI interface; 2, need specific hardware device support, turning mutually between various video interface and the SDI interface all needs specific hardware device; 3, ultimate resolution is fixed, because the restriction of SDI interface, the DI interface maximum of existing video interface conversion equipment can only be supported 1920*1080@60P, and the video formats of high-definition video monitoring field 1600*1200@25P, 2048*1536@15P commonly used all can't be supported.
Summary of the invention
The purpose of the embodiment of the invention is the deficiency that exists for existing SDI audio-video interface switch technology, the system and method for a kind of multi-format audio frequency and video based on the Displayport interface standard and serial data conversion is proposed, can not transmit the problem of non-standard mode video to have solved the SDI interface, and SDI audio-video interface switch technology realizes and existing SDI interface can not be supported high-resolution problem complicated.
In order to reach the foregoing invention purpose, a kind of system of multi-format audio-video signal and serial data conversion that supports that the embodiment of the invention proposes is achieved through the following technical solutions:
A kind of system that supports multi-format audio-video signal and serial data conversion, described system comprises transmitting terminal and receiving terminal, wherein:
Described transmitting terminal comprises video input module, audio frequency input module, data input module, audio frequency and video processing module, sending module and driver module;
Described video input module is used for converting the various format video signals of input to the rgb video data, exports to described audio frequency and video processing module;
Described audio frequency input module is used for converting one road simulated audio signal of input to digital audio-frequency data, is defeated by described audio frequency and video processing module;
Described data input module is used for converting the serial data of input to Transistor-Transistor Logic level, exports to described audio frequency and video processing module;
Described audio frequency and video processing module is used for the video data of input is converted to the parallel video data of sampling, and described Transistor-Transistor Logic level data are embedded in the voice data, then with described parallel video data and the voice data after embedding export to sending module;
Described sending module is used for the video data of input is become the HDI signal with voice data according to Displayport 1.1a protocol conversion;
Described driver module is used for that the HDI signal that difference is inputted is carried out preemphasis and is processed into the HDI primary signal;
Described receiving terminal comprises balance module, receiver module, audio frequency and video processing module, data transmission blocks, audio frequency output module and video output module;
Described balance module is used for the HDI primary signal that is transferred to is carried out equilibrium treatment;
Described receiver module is used for the HDI signal after the equilibrium is carried out demodulation, and video data and voice data after the generation demodulation are exported to described audio frequency and video processing module;
Described audio frequency and video processing module is used for described video data is decoded, be reduced into two groups of TTL 24bit video datas, clock, row, field and enable signals, and the voice data in the voice data after decoded two groups of video datas are converted to the desired data format of described video output module and will embed separates with serial data;
Described audio frequency output module is used for described voice data is carried out the D/A conversion and amplifies processing;
Described data transmission blocks is used for described Transistor-Transistor Logic level data transaction is become serial data;
Described video output module is used for converting the video data of described audio frequency and video processing module output to various interface video data and output.
Further preferably, described HDI primary signal is with BNC cable or Optical Fiber Transmission.
Further preferably, when the Displayport of described sending module interface moved with single channel, data rate was 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off.
Further preferably, when the Displayport of described receiver module interface moved with single channel, data rate was 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off.
Further preferably, the video data after the described receiver module demodulation is exported with two channel standard LVDS interfaces, and voice data is with the IIS interface output of standard, and correspondingly, described audio frequency and video processing module is carried out the LVDS decoding to video data.
In order to realize aforementioned goal of the invention, the embodiment of the invention has also proposed a kind of method of supporting multi-format audio-video signal and serial data conversion, and described method is achieved through the following technical solutions:
A kind of method of supporting multi-format audio-video signal and serial data conversion, described method comprises:
The various format video signals that video input module will be inputted convert the rgb video data to, export to the audio frequency and video processing module;
The road simulated audio signal that the audio frequency input module will be inputted converts digital audio-frequency data to, exports to described audio frequency and video processing module;
Data input module converts the serial data of input to Transistor-Transistor Logic level, exports to described audio frequency and video processing module;
Described audio frequency and video processing module converts the parallel video data of sampling to the video data of input, and described Transistor-Transistor Logic level data are embedded in the voice data, then the voice data after described parallel video data and the embedding is exported to sending module;
Described sending module becomes HDI signal with voice data according to Displayport 1.1a standard handovers with the video data of input;
Driver module carries out to the HDI signal of difference input that preemphasis is processed into the HDI primary signal and with BNC cable or Optical Fiber Transmission;
Balance module carries out equilibrium treatment to the described HDI primary signal that is transferred to;
The HDI signal of receiver module after to equilibrium treatment carries out demodulation, and the video data and the voice data that produce after the demodulation are exported to described audio frequency and video processing module;
Described audio frequency and video processing module is decoded described video data, be reduced into two groups of TTL 24bit video datas, clock, row, field and enable signals, and the voice data in the voice data after decoded two groups of video datas are converted to the desired data format of described video output module and will embed separates with serial data;
The voice data of audio frequency output module after to described separation carries out the D/A conversion and amplifies and process;
Data transmission blocks becomes serial data with described Transistor-Transistor Logic level data transaction;
The video output module is used for converting the video data of described audio frequency and video processing module output to various interface video data and output.
Further preferably, described HDI primary signal is with BNC cable or Optical Fiber Transmission.
Further preferably, when the Displayport of described sending module interface moved with single channel, data rate was 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off.
Further preferably, when the Displayport of described receiver module interface moved with single channel, data rate was 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off.
Further preferably, the video data after the described receiver module demodulation is exported with two channel standard LVDS interfaces, and voice data is with the IIS interface output of standard, and correspondingly, described audio frequency and video processing module is carried out the LVDS decoding to video data.
Compared with prior art, the system and method for the support multi-format audio-video signal that the embodiment of the invention provides and serial data conversion, based on the conversion of Displayport interface standard with support multi-format audio frequency and video and serial data, solved the problem that the SDI interface can not transmit the non-standard mode video, for 5,000,000,8,000,000,1,000 ten thousand pixel high-definition camera videos of future generation in real time, long Distance Transmission provides a kind of good solution.Simultaneously, the HDI interface single channel speed 2.97Gpbs of the embodiment of the invention, compatible existing high definition HD-SDI matrix.In addition, the embodiment of the invention also has the function of audio frequency, video and serial data synchronous transmission, harmless conversion, has that hardware is simple, low cost and other advantages.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the present invention will become apparent and easily understand.
Fig. 1 is the system function module figure that 1 one kinds of the embodiment of the invention are supported multi-format audio-video signal and serial data conversion;
Fig. 2 is the embodiment of the invention 1 transmitting terminal functional block diagram;
Fig. 3 is the embodiment of the invention 1 receiving terminal functional block diagram;
Fig. 4 is the composition format chart of the embodiment of the invention 1 IIS audio frequency and data;
Fig. 5 is the flow chart that 2 one kinds of the embodiment of the invention are supported the method for multi-format audio-video signal and serial data conversion.
The number in the figure explanation:
1. video input module 2. audio frequency input modules 3. data input modules 4. audio frequency and video processing module 5.HDI sending module 6.HDI driver module 7.HDI balance module 8.HDI receiver modules 9 audio frequency and video processing modules 10. audio frequency output modules 11. data transmission blocks 12. video output modules
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
The embodiment of the invention relates to a kind of new interface based on the Displayport interface standard, is called HDI (High Definition Interface) interface.Because the Displayport interface do not limit video formats, turn mutually processing such as need not up/down conversion, frame rate conversion between different video interfaces and the HDI interface, also can well solve the transmission problem of various non-standard videos simultaneously.
As shown in Figure 1, support the system of multi-format audio-video signal and serial data conversion for 1 one kinds of the embodiment of the invention, described system is achieved through the following technical solutions:
A kind of system that supports multi-format audio-video signal and serial data conversion, described system comprises transmitting terminal and receiving terminal, wherein:
Described transmitting terminal comprises video input module, audio frequency input module, data input module, audio frequency and video processing module, sending module and driver module;
Described video input module is used for converting the various format video signals of input to the rgb video data, exports to described audio frequency and video processing module;
Described audio frequency input module is used for converting one road simulated audio signal of input to digital audio-frequency data, is defeated by described audio frequency and video processing module;
Described data input module is used for converting the serial data of input to Transistor-Transistor Logic level, exports to described audio frequency and video processing module;
Described audio frequency and video processing module is used for the video data of input is converted to the parallel video data of sampling, and described Transistor-Transistor Logic level data are embedded in the voice data, then with described parallel video data and the voice data after embedding export to sending module;
Described sending module is used for the video data of input is become the HDI signal with voice data according to Displayport 1.1a standard handovers;
Described driver module is used for that the HDI signal that difference is inputted is carried out preemphasis and is processed into the HDI primary signal;
Described receiving terminal comprises balance module, receiver module, audio frequency and video processing module, data transmission blocks, audio frequency output module and video output module;
Described balance module is used for the HDI primary signal that is transferred to is carried out equilibrium treatment;
Described receiver module is used for the HDI signal after the equilibrium is carried out demodulation, and video data and voice data after the generation demodulation are exported to described audio frequency and video processing module;
Described audio frequency and video processing module is used for described video data is decoded, be reduced into two groups of TTL 24bit video datas, clock, row, field and enable signals, and the voice data in the voice data after decoded two groups of video datas are converted to the desired data format of described video output module and will embed separates with serial data;
Described audio frequency output module is used for described voice data is carried out the D/A conversion and amplifies processing;
Described data transmission blocks is used for described Transistor-Transistor Logic level data transaction is become serial data;
Described video output module is used for converting the video data of described audio frequency and video processing module output to various interface video data and output.
Further preferably, described HDI primary signal is with BNC cable or Optical Fiber Transmission.
Further preferably, when the Displayport of described sending module interface moved with single channel, data rate was 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off.
Further preferably, when the Displayport of described receiver module interface moved with single channel, data rate was 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off.
Further preferably, the video data after the described receiver module demodulation is exported with two channel standard LVDS interfaces, and voice data is with the IIS interface output of standard, and correspondingly, described audio frequency and video processing module is carried out the LVDS decoding to video data.
The system of the present invention's one preferred embodiment, 1 support multi-format audio-video signal and serial data conversion is comprised of transmitting terminal and receiving terminal two parts, as shown in Figure 2, transmitting terminal mainly is comprised of video input module 1, audio frequency input module 2, data input module 3, audio frequency and video processing module 4, HDI sending module 5 and HDI driver module 6.
Wherein video input module 1 adopts modularized design, self is with ID number, the ID difference of the input module of different video interface, it is responsible for converting the video input of the various criterions such as HDMI, DVI, VGA, CVBS to 4:4:4 or 4:2:2RGB data, is defeated by the audio frequency and video processing module to process;
The a road stereo simulated audio signal that audio frequency input module 2 will be inputted converts the IIS digital audio and video signals of standard to;
The conversion that data input module 3 is responsible between the gentle Transistor-Transistor Logic level of serial port power;
Audio frequency and video processing module 4 converts the video data of input to the YUV parallel data of the 4:2:2 sampling of standard, and serial data is embedded in the voice data, then the yuv video data of 4:2:2 sampling and the IIS voice data of standard are exported to the HDI sending module.
As shown in Figure 4, the low 8bit of the IIS data of the 32bit of standard is empty, and serial data will be embedded in these empty least-significant byte data, therefore maximum 8 road one-way datas of supporting of the embodiment of the invention transmit.
HDI sending module 5 is responsible for video data and the voice data of input are sent according to the Displayport interface standard.
Done technology modification for the Displayport interface in the embodiment of the invention, be called the HDI interface, wherein, the HDI sending module has been done following technical finesse:
(1) the single pass data rate of Displayport interface rises to 2.97Gbps from 2.7Gbps.This change need to send Displayport the inter-process clock frequency of chip from the 27M frequency multiplication to 29.7M.
Single channel HDI interface rate 2.97Gbps can compatible existing high definition HD-SDI matrix; Twin-channel Displayport interface rate can reach 5.94Gbps, supports the ultra high-definition videos such as 1920*1080@120P, 4000*2000@60P; The embodiment of the invention by different inputs, output module, realizes turning mutually between various video interface and the HDI interface based on modularized design flexibly simultaneously.
(2) because the one-way of HDI passage, the HPD in the Displayport 1.1a standard (hot plug detection) and the connection management of AUX CH (accessory channel) and the function of equipment control need to be removed.
The AUX passage is the differential path of a 1Mbps bandwidth, half-duplex, two-way, AC coupled in the Displayport 1.1a standard.When the HPD signal was detected, transmitting terminal can be initiated a lane testing by AUX CH, to determine the parameters such as port number, channel rate, drive current; During normal operation, when channel status changed, receiving terminal also can be initiated an interruption by AUX CH, triggered transmitting terminal and re-started lane testing, realized the function of connection management and equipment control with this.
In embodiments of the present invention, owing to there not being an AUX CH, need in Displayport sends the program of chip, HPD be detected and the function of lane testing is turned off; Transmitting terminal is not done lane testing, and acquiescence HPD signal is effective, and port number is 1 (being chosen as 2), channel rate 2.7Gbps, and default channel all is normal forever.
The differential signal that 6 couples of HDI of HDI driver module send the 2.97Gbps of chip output carries out the operations such as preemphasis, amplitude of oscillation adjustment, strengthens the driving force of HDI, can transmit by Belden 1694A cable or optical fiber at last.
As shown in Figure 3, receiving terminal mainly is comprised of HDI balance module 7, HDI receiver module 8, audio frequency and video processing module 9, audio frequency output module 10, data transmission blocks 11 and video output module 12.
Wherein, the HDI primary signal of 7 couples of BNC of HDI balance module or optical fiber input is carried out equilibrium treatment, to compensate the loss of signal after the long Distance Transmission;
HDI signal after 8 pairs of equilibriums of HDI receiver module carries out demodulation, the video data after the production demodulation and voice data.Video data is exported with two channel standard LVDS interfaces, and voice data is with the IIS interface output of standard.
The standard of comparing Displaport receiver module, the HDI receiver module in the embodiment of the invention 1 has been done following technical finesse:
(1) the single pass data rate of Displayport interface rises to 2.97Gbps from 2.7Gbps.This change need to be with the inter-process clock frequency of Displayport receiving chip from the 27M frequency multiplication to 29.7M.
(2) owing to the one-way of HDI passage, the connection management of AUX CH (accessory channel) and the function of equipment control need to be removed.
In the Displayport standard, after transmitting terminal detects the HPD signal, can initiate passage and detect, receiving terminal need to report the parameters such as the port number, receiving velocity of oneself.During normal operation, during channel abnormal (such as dropout), receiving terminal need to be initiated an interruption, has no progeny during transmitting terminal is received to re-start the passage detection.
In the embodiment of the invention 1, owing to there not being AUX CH, the Displayport receiving chip need to be forbidden the function of AUX CH and transmitting terminal communication in program.Receiving terminal does not report the receiving ability of oneself, and the port number of giving tacit consent to oneself is 1 (can change 2 into), and receiving velocity 2.7Gbps does not trigger interruption when unusual when passage has.
Audio frequency and video processing module 9 is mainly finished three work: (1) LVDS data decode is reduced into two groups of TTL 24bit video datas, clock, row, field and enable signals; (2) video interface data transaction.Need to convert the decoded two groups of video datas of LVDS to video output module desired data format.
(3) voice data in the IIS voice data is separated with serial data.
As shown in Figure 3, directly take the least-significant byte of 32bit voice data away, can obtain serial data.
Audio frequency output module 10 after the D/A conversion, amplifying processing, is exported one road stereo simulated audio signal with the IIS digital audio and video signals of input.
Video output module 11 adopts modularized design, and self is with ID number, and the output module ID of different video interfaces is different; The video output module converts digital of digital video data to the various interface video output such as HDMI, DVI, VGA, CVBS.
Compared with prior art, the system of the support multi-format audio-video signal that the embodiment of the invention provides and serial data conversion, based on the conversion of Displayport interface standard with support multi-format audio frequency and video and serial data, solved the problem that the SDI interface can not transmit the non-standard mode video, for the long Distance Transmission of 5,000,000,8,000,000,1,000 ten thousand pixel high-definition camera videos of future generation provides a kind of good solution.Simultaneously, the HDI interface single channel speed 2.97Gpbs of the embodiment of the invention, compatible existing high definition HD-SDI matrix.In addition, the embodiment of the invention also has the function of audio frequency, video and serial data synchronous transmission, harmless conversion, has that hardware is simple, low cost and other advantages.
As shown in Figure 5, the embodiment of the invention 2 also provides a kind of method of supporting multi-format audio-video signal and serial data conversion, and described method is achieved through the following technical solutions:
A kind of method of supporting multi-format audio-video signal and serial data conversion, described method comprises:
S101. the various format video signals that will input of video input module convert the rgb video data to, export to the audio frequency and video processing module;
S102. the road simulated audio signal that will input of audio frequency input module converts digital audio-frequency data to, exports to described audio frequency and video processing module;
S103. data input module converts the serial data of input to Transistor-Transistor Logic level, exports to described audio frequency and video processing module;
S104. described audio frequency and video processing module converts the parallel video data of sampling to the video data of input, and described Transistor-Transistor Logic level data are embedded in the voice data, then the voice data after described parallel video data and the embedding is exported to sending module;
S105. described sending module becomes HDI signal with voice data according to Displayport 1.1a protocol conversion with the video data of input;
S106. driver module carries out to the HDI signal of difference input that preemphasis is processed into the HDI primary signal and with BNC cable or Optical Fiber Transmission;
S107. balance module carries out equilibrium treatment to the described HDI primary signal that is transferred to;
S108. the HDI signal of receiver module after to equilibrium treatment carries out demodulation, and the video data and the voice data that produce after the demodulation are exported to described audio frequency and video processing module;
S109. described audio frequency and video processing module is decoded described video data, be reduced into two groups of TTL24bit video datas, clock, row, field and enable signals, and the voice data in the voice data after decoded two groups of video datas are converted to the desired data format of described video output module and will embed separates with serial data;
S110. the voice data of audio frequency output module after to described separation carries out the D/A conversion and amplifies and process;
S111. data transmission blocks becomes serial data with described Transistor-Transistor Logic level data transaction;
S112. the video output module is used for converting the video data of described audio frequency and video processing module output to various interface video data and output.
Further preferably, described HDI primary signal is with BNC cable or Optical Fiber Transmission.
Further preferably, when the Displayport of described sending module interface moved with single channel, data rate was 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off.
Further preferably, when the Displayport of described receiver module interface moved with single channel, data rate was 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off.
Further preferably, the video data after the described receiver module demodulation is exported with two channel standard LVDS interfaces, and voice data is with the IIS interface output of standard, and correspondingly, described audio frequency and video processing module is carried out the LVDS decoding to video data.
Composition and the description in mode of operation and the embodiment of the invention 1 of video input module, audio frequency input module, data input module, audio frequency and video processing module, HDI sending module and HDI driver module, HDI balance module, HDI receiver module, audio frequency and video processing module, audio frequency output module, data transmission blocks and video output module in the method for the support multi-format audio-video signal of the embodiment of the invention 2 and serial data conversion are consistent, give unnecessary details no longer one by one here.
Compared with prior art, the method of the support multi-format audio-video signal that the embodiment of the invention provides and serial data conversion, based on the conversion of Displayport interface standard with support multi-format audio frequency and video and serial data, solved the problem that the SDI interface can not transmit the non-standard mode video, for the long Distance Transmission of 5,000,000,8,000,000,1,000 ten thousand pixel high-definition camera videos of future generation provides a kind of good solution.Simultaneously, the HDI interface single channel speed 2.97Gpbs of the embodiment of the invention, compatible existing high definition HD-SDI matrix.In addition, the embodiment of the invention also has the function of audio frequency, video and serial data synchronous transmission, harmless conversion, has that hardware is simple, low cost and other advantages.
One of ordinary skill in the art of the present invention are appreciated that; the above embodiment of the present invention only is one of the preferred embodiments of the present invention; be the length restriction; here can not all execution modes of particularize; any enforcement that can embody claim technical scheme of the present invention is all in protection scope of the present invention.
It should be noted that; above content is in conjunction with concrete execution mode further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; under above-mentioned guidance of the present invention; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in protection scope of the present invention.
Claims (5)
1. a system that supports multi-format audio-video signal and serial data conversion is characterized in that, described system comprises transmitting terminal and receiving terminal, wherein:
Described transmitting terminal comprises video input module, audio frequency input module, data input module, audio frequency and video processing module, sending module and driver module;
Described video input module is used for converting the various format video signals of input to the rgb video data, exports to described audio frequency and video processing module;
Described audio frequency input module is used for converting one road simulated audio signal of input to digital audio-frequency data, exports to described audio frequency and video processing module;
Described data input module is used for converting the serial data of input to the Transistor-Transistor Logic level data, exports to described audio frequency and video processing module;
Described audio frequency and video processing module is used for the video data of input is converted to the parallel video data of sampling, and described Transistor-Transistor Logic level data are embedded in the digital audio-frequency data of input, then with described parallel video data and the voice data after embedding export to sending module;
Described sending module is used for the video data of input is become the HDI signal with voice data according to Displayport 1.1a protocol conversion: when the Displayport of described sending module interface moves with single channel, data rate is 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off;
Described driver module is used for that the HDI signal that difference is inputted is carried out preemphasis and is processed into the HDI primary signal;
Described receiving terminal comprises balance module, receiver module, audio frequency and video processing module, data transmission blocks, audio frequency output module and video output module;
Described balance module is used for the HDI primary signal that is transferred to is carried out equilibrium treatment;
Described receiver module is used for the HDI signal after the equilibrium is carried out demodulation, and video data and voice data after the generation demodulation are exported to described audio frequency and video processing module; When the Displayport of described receiver module interface moved with single channel, data rate was 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off;
Described audio frequency and video processing module is used for described video data is decoded, be reduced into two groups of TTL 24bit video datas, clock, row, field and enable signals, and the voice data in the voice data after decoded two groups of video datas are converted to the desired data format of described video output module and will embed separates with the Transistor-Transistor Logic level data;
Described audio frequency output module is used for described voice data is carried out the D/A conversion and amplifies processing;
Described data transmission blocks is used for described Transistor-Transistor Logic level data transaction is become serial data;
Described video output module is used for converting the video data of described audio frequency and video processing module output to various interface video data and output.
2. system according to claim 1 is characterized in that, described HDI primary signal is with BNC cable or Optical Fiber Transmission.
3. system according to claim 2, it is characterized in that, the video data after the described receiver module demodulation is exported with two channel standard LVDS interfaces, and voice data is with the IIS interface output of standard, correspondingly, described audio frequency and video processing module is carried out the LVDS decoding to video data.
4. a method of supporting multi-format audio-video signal and serial data conversion is characterized in that, described method comprises:
The various format video signals that video input module will be inputted convert the rgb video data to, export to the audio frequency and video processing module;
The road simulated audio signal that the audio frequency input module will be inputted converts digital audio-frequency data to, exports to described audio frequency and video processing module;
Data input module converts the serial data of input to the Transistor-Transistor Logic level data, exports to described audio frequency and video processing module;
Described audio frequency and video processing module converts the parallel video data of sampling to the video data of input, and described Transistor-Transistor Logic level data are embedded in the digital audio-frequency data of input, then with described parallel video data and the voice data after embedding export to sending module;
Described sending module becomes HDI signal with voice data according to Displayport 1.1a protocol conversion with the video data of input: when the Displayport of described sending module interface moves with single channel, data rate is 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off;
Driver module carries out to the HDI signal of difference input that preemphasis is processed into the HDI primary signal and with BNC cable or Optical Fiber Transmission;
Balance module carries out equilibrium treatment to the described HDI primary signal that is transferred to;
The HDI signal of receiver module after to equilibrium treatment carries out demodulation, and the video data and the voice data that produce after the demodulation are exported to described audio frequency and video processing module; When the Displayport of described receiver module interface moved with single channel, data rate was 2.97Gbps, and the connection management of hot plug detection and accessory channel and the function of equipment control are switched off;
Described audio frequency and video processing module is decoded described video data, be reduced into two groups of TTL 24bit video datas, clock, row, field and enable signals, and the voice data in the voice data after decoded two groups of video datas are converted to the desired data format of described video output module and will embed separates with the Transistor-Transistor Logic level data;
The voice data of audio frequency output module after to described separation carries out the D/A conversion and amplifies and process;
Data transmission blocks becomes serial data with described Transistor-Transistor Logic level data transaction;
The video output module is used for converting the video data of described audio frequency and video processing module output to various interface video data and output.
5. method according to claim 4, it is characterized in that, the video data after the described receiver module demodulation is exported with two channel standard LVDS interfaces, and voice data is with the IIS interface output of standard, correspondingly, described audio frequency and video processing module is carried out the LVDS decoding to video data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110170598 CN102223512B (en) | 2011-06-22 | 2011-06-22 | System and device for supporting conversion of multi-format audio-video signal and serial data |
Applications Claiming Priority (1)
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| CN 201110170598 CN102223512B (en) | 2011-06-22 | 2011-06-22 | System and device for supporting conversion of multi-format audio-video signal and serial data |
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| Publication Number | Publication Date |
|---|---|
| CN102223512A CN102223512A (en) | 2011-10-19 |
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| US9015357B2 (en) * | 2012-10-22 | 2015-04-21 | Ati Technologies Ulc | Method and device for providing high speed data transmission with video data |
| CN103024313B (en) * | 2012-12-17 | 2016-11-02 | 深圳创维－Rgb电子有限公司 | A kind of Ultra-high-definitiodisplay display device |
| CN104349205B (en) * | 2014-11-17 | 2018-05-22 | 广东威创视讯科技股份有限公司 | Audio/video processing method and system |
| CN104717436A (en) * | 2015-02-09 | 2015-06-17 | 深圳市嘉利达专显科技有限公司 | Endoscopic display driving system for operating room and method thereof |
| CN108063951B (en) * | 2017-12-14 | 2021-07-13 | Oppo广东移动通信有限公司 | Method and device for transmitting nonstandard resolution data and electronic equipment |
| CN108134782A (en) * | 2017-12-15 | 2018-06-08 | 天津津航计算技术研究所 | A kind of method based on 10,000,000,000 network transmission high-bandwidth video of FCoE protocol realizations |
| CN110087086A (en) * | 2019-05-07 | 2019-08-02 | 北京流金岁月文化传播股份有限公司 | A kind of device and method for supporting 4K SDI to export |
| CN112188182A (en) * | 2019-07-02 | 2021-01-05 | 西安诺瓦星云科技股份有限公司 | Stereoscopic display control system, stereoscopic display system and stereoscopic display controller |
| CN110490837B (en) * | 2019-07-09 | 2021-10-12 | 中国科学院西安光学精密机械研究所 | Detection method of non-standard format 3G-SDI image |
| CN113038275A (en) * | 2019-12-25 | 2021-06-25 | 西安诺瓦星云科技股份有限公司 | Data transmission method, data transmission device and data transmission system |
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| CN101667378A (en) * | 2009-09-11 | 2010-03-10 | 李东盛 | Broadcasting method, broadcasting equipment and broadcasting system of computer multi-media advertising |
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