CN102082951A - Transmission method and device and formatting method and device of image signals - Google Patents
Transmission method and device and formatting method and device of image signals Download PDFInfo
- Publication number
- CN102082951A CN102082951A CN2010105788643A CN201010578864A CN102082951A CN 102082951 A CN102082951 A CN 102082951A CN 2010105788643 A CN2010105788643 A CN 2010105788643A CN 201010578864 A CN201010578864 A CN 201010578864A CN 102082951 A CN102082951 A CN 102082951A
- Authority
- CN
- China
- Prior art keywords
- signal
- picture signal
- parallel
- module
- serial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Television Systems (AREA)
Abstract
The invention provides a transmission method, a transmission deice, a formatting method and a formatting device of image signals. The transmission method comprises the following step of: before parallel image signals are converted into serial data signals, formatting the parallel image signals into image signals with the uniform resolution format of 2160*1250 pixels. Due to the adoption of the uniform format standard of 2160*1250, all video signals such as standard-definition signals, high-definition signals and the like during video processing can be transmitted and self-adaptability to signals of various formats is high. The transmission rate of 2.43 Gbps obtained on the basis of the standard is fixed and does not change along with the change of resolution, so that the design complexities of a transmission data end and a receiving data end are lowered.
Description
Technical field
The present invention relates to the picture signal process field, relate in particular to a kind of formatting method, device of transmission method, device and a kind of picture signal of picture signal.
Background technology
In Video processing, signal of a great variety.Interface by various signal sources is divided, and CVBS, S-VIDEO, YPbPr, VGA and DVI etc. are arranged; Divide by the signal form after signal digitalized, YUV422, YUV444, YUV420 and RGB888 etc. are arranged; Resolution format by signal is divided, and 720x480,720x576,640x480,1024x768,1280x1024,1600x1200 and 1920x1080 or the like are arranged; Refresh rate by signal is divided, and 25Hz, 30Hz, 50Hz, 60Hz, 70Hz and 80Hz or the like are arranged.Present above-mentioned Video signal processing and transmission are according to VESA(Video Electronics Standards Association, VESA) Timing handles, corresponding Timing sequential of each resolution format and processing clock, because the transmission of above-mentioned various models does not have the unified standard of a cover, at different signal resolution forms, refresh rates etc. can have different processing clock, transformat etc., bring certain degree of difficulty therefore for the signal format identification processing of rear end, the cascade expansion that also is not suitable for signal simultaneously waits other operation.
Application number is to disclose the method that a kind of multi-screen real-time signal is handled in 200810026239.0 the application documents, and this method may further comprise the steps: gather and obtain parallel picture signal; Processing is carried out synchronously, formatd to the picture signal that this is parallel, obtains the parallel picture signal of synchronous and consolidation form; Convert parallel picture signal to the high-speed serial data signal; Adopt high speed serialization numeral space switching technology, the scheduling high-speed serial data signal; The high-speed serial data signal is carried out serial/parallel conversion, restore parallel picture signal.Adopt this method to carry out the image transmission, because various vision signals are formatd, all signals adopt unified transformat, have made things convenient for the signal processing of rear end.
But in the above-mentioned multi-screen real-time signal processing method, do not relate to picture signal is carried out formative concrete grammar, the yet concrete consolidation form standard of neither one when adopting the sort signal processing method to carry out the image transmission.
Summary of the invention
For addressing the above problem, the present invention discloses a kind of formatting method, device of transmission method, device and a kind of picture signal of picture signal, a concrete consolidation form standard can be provided, under this standard, can transmit the most vision signals in the present Video processing, make things convenient for the signal processing of rear end; And based on the immobilizing of transmission rate of this format standard.
The transmission method of a kind of picture signal of the present invention may further comprise the steps:
Step S1 obtains parallel picture signal;
Step S2 is formatted as parallel picture signal the unified resolution standard of 2160*1250 pixel;
Step S3 carries out Synchronous Processing, and the parallel picture signal conversion after will handling becomes the data-signal of high speed serialization;
Step S4 adopts high speed serialization numeral space switching technology, the scheduling high-speed serial data signal;
Step S5 carries out serial/parallel conversion to the data-signal of high speed serialization, restores parallel picture signal.
The transmitting device of a kind of picture signal of the present invention comprises signal acquisition module, synchronization of modules, parallel/serial modular converter, Cross module and serial/parallel modular converter, also comprises formatting module; Signal acquisition module, formatting module, synchronization of modules, parallel/serial modular converter, Cross module and serial/parallel modular converter connect successively;
The function of signal acquisition module is the images acquired signal, obtains parallel picture signal;
The function of formatting module is according to default parameter, and the parallel picture signal consolidation form that signal acquisition module is obtained is the parallel picture signal of 2160*1250 pixel;
The function of synchronization module is that the parallel picture signal behind the formatting module consolidation form is carried out Synchronous Processing;
Parallel/serial modular converter is used for the parallel picture signal of synchronization module is converted to the data-signal of high speed serialization;
Cross module is used to adopt high speed serialization numeral space switching technology, the data-signal of scheduling high-speed serial;
Serial/parallel modular converter is used for the high-speed serial data signal of Cross module is carried out serial/parallel conversion, restores parallel picture signal.
The formatting method of a kind of picture signal of the present invention may further comprise the steps:
Step S201 will need formative picture signal to store;
Whether step S202, the horizontal pixel of judging image be less than 2160, if then replenish corresponding inactive pixels;
Whether step S203, the vertical pixel of judging image be less than 1250, if then replenish corresponding inactive pixels;
Step S204 if the resolution of image has been 2160*1250, then finishes the format of this image.
The formatting mechanism of a kind of picture signal of the present invention comprises memory module and formatting module;
The function of memory module is that storage needs formative picture signal;
The function of formatting module is according to default parameter, is the picture signal of 2160*1250 pixel with the picture signal consolidation form in the memory module.
From above scheme as can be seen,, during handling, the energy transmission of video comprises all vision signals of SD, high definition etc. owing in the image transmission signal format unification is the standard of 2160*1250, strong to the signal adaptive ability of various forms.And fix based on the transmission rate of the present invention that the method drew, can not change along with the change of resolution, reduced sending data terminal and receiving the design complexity that data terminal causes because of rate variation.
Description of drawings
Fig. 1 is the transmission method flow chart of a kind of picture signal of the present invention;
Fig. 2 is the transmitting device structural representation of a kind of picture signal of the present invention;
Fig. 3 is the formatting method flow chart of a kind of picture signal of the present invention;
Fig. 4 is the formatting mechanism structural representation of a kind of picture signal of the present invention;
Fig. 5 is before the picture formatization and the comparison diagram after the format.
Embodiment
The invention provides a kind of formatting method, device of transmission method, device and a kind of picture signal of picture signal, the picture signal that can solve various models in the prior art does not have the unified standard of a cover in the process of transmission, thus the problem of making troubles for the signal processing of rear end.Describe technical scheme of the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of transmission method of picture signal may further comprise the steps:
Step S1 obtains parallel picture signal;
Step S2 is formatted as parallel picture signal the unified resolution standard of 2160*1250 pixel;
Step S3 carries out Synchronous Processing, and the parallel picture signal conversion after will handling becomes the data-signal of high speed serialization;
Step S4 adopts high speed serialization numeral space switching technology, the scheduling high-speed serial data signal;
Step S5 carries out serial/parallel conversion to the data-signal of high speed serialization, restores parallel picture signal.
Step S1 adopts various acquisition technology same as the prior art to obtain parallel picture signal.
Among the step S2, parallel picture signal is formatted as the unified resolution form of 2160*1250 pixel, as shown in Figure 3, specifically can may further comprise the steps:
Step S201 will need formative picture signal to be cached in the frame memory;
Whether step S202, the horizontal pixel of judging image be less than 2160, if then replenish corresponding inactive pixels;
Whether step S203, the vertical pixel of judging image be less than 1250, if then replenish corresponding inactive pixels;
Step S204 if the resolution of image has been 2160*1250, then finishes the format of this image.
As shown in Figure 5, with the resolution of front-end collection be the standard that becomes the consolidation form of 2160*1250 after the picture signal of 1920*1080 formats.In formatting procedure of the present invention, at first in the space of 2160*1250 altogether, place image, the image of valid pixel is the centre that is placed on this two field picture of true resolution, what other were unnecessary is blanking zone, does not do demonstration.Blanking zone can change according to valid pixel, for example in the present embodiment, each row of data valid pixel (1920)+each row of data blanking data (240)=every capable total data (2160), effective line number (1080)+blanking line number (170)=total line number (1250), after soon the image of valid pixel will be placed on the centre of 2160*1250 image, replenishing inactive pixels around it, is 2160 or 1250 up to valid pixel and inactive pixels sum.
The process chip that is used for signal formatization is a fpga chip, and that frame memory uses is 2 32bitDDR SDRAM.In order to guarantee that signal is not by misoperation, FPGA is divided into 3 buffering areas with DDR SDRAM, here called after buffering area A, buffering area B and buffering area C, each buffering area is put a two field picture, operation to these three buffering areas is carried out in order, at synchronization, has only a buffering area to carry out write operation, a buffering area carries out read operation, another buffering area inoperation.The vision signal that front end is brought is the 24bit vision signal, and these signals are effective video signals, and FPGA is placed on these signals among the DDR SDRAM in order.FPGA writes input first frame data to A earlier, writes second frame data to B again, writes the 3rd frame data to C again, and then writes the 4th frame data to A, so circulation.When FPGA detects the DE signal by low uprising, and this moment, FPGA write data to A, and FPGA can read the data among the C so.The data of reading from C this moment can be delivered to the buffering area before the serialization.DDR SDRAM all can operate at rising edge and trailing edge, so a clock cycle, parallel bus bandwidth is 32bit*2*2, promptly the output port of synchronization of modules is 128bit.Because the data of each picture element are 24bit, require (128bit*3=24bit*16) based on integer calculations, so need the output port after the register of 16 24bit comes storage formatting.When concrete operations, when formatting module is write the 11st register to output port (beginning to write the 128bit data of the 3rd clock cycle), just first 128bit data are delivered to the fifo queue FIFO of serialization port, so circulation.
The process chip that is used for signal Synchronizationization also is a fpga chip, and the picture signal behind the consolidation form is carried out the synchronization transmission according to the system synchronization clock.Because the frame per second of each input picture is inconsistent, therefore also needing to carry out frame rate conversion with picture signal format back with before carrying out clock synchronization, it is synchronous to satisfy output image.
By system's row field sync signal format back output image, the picture format of output is a 2160x1250 resolution, and color depth is 24bit, and frame per second is 30 frames/s.In order to reduce transmission line quantity,, the 24bit parallel video signal is converted to serial signal by the parallel data serialization.When with above-mentioned resolution serving as output, the video data transmission bandwidth will reach 2160*1250*24*30=1.944Gbps, when the SerDes port of the parallel/serial transducer of data process sends, in order to guarantee the correctness of data when the high-speed transfer, the SerDes port can carry out the 8bit/10bit coding to video data automatically, and the speed of final data transmission is 1.944Gbps*10/8=2.43Gbps like this.Because the embedded SerDes passage of selecting for use of fpga chip, so the PCS stone that can adopt FPGA to carry is realized the serialization function, reference clock can be set at 243MHz or 121.5MHz, is operated in the 8bit/10bit pattern, and every road transmission rate is 2.43Gbps after the serialization.Comprise picture signal Data[23:0 in the serialized data], HS, VS, DE, PixelClk.
At last, utilize the embedded SerDes passage of fpga chip that the high-speed video stream signal from the process handshaking of transmitting terminal is carried out serial/parallel conversion, finishing deserializing handles, the 8bit data transaction to 24bit and be temporary among the FIFO, the output of decoding recovers system HS, VS, DE signal and effective picture signal before the coding to encoded capable field information at last, carries out output image signal and still is Data[23:0], HS, VS, DE, PixelClk.
At present in the video industry vision signal commonly used for meeting the DVI1.1 standard signal, i.e. single-link signal, the perhaps vision signal of 1920*1200.The maximum clock signal is 165MHz in the DVI1.1 standard, the ultimate resolution that meets the VESA standard in this scope is that 1600*1200@60Hz(clock signal bandwidth is 162MHz), this resolution is valid pixel resolution, real image resolution is 2160*1250, the image of valid pixel is the centre that is placed on this two field picture of true resolution, and what other were unnecessary does not do demonstration for blanking zone.But transmit the image of this effective resolution of 1920*1200 if desired in routine techniques, add his blanking zone, bandwidth just considerably beyond the bandwidth of DVI1.1 standard, must satisfy the DVI2.0 standard, i.e. dual link standard (2 groups of transmission signals).Based on peak signal commonly used at present is 1920*1200, so the present invention selects this resolution of 2160*1250 as the format standard, can be fit to comprise in the Video processing all video signal transmission of SD, high definition etc., also can be fit to signal digitalized back high speed serial transmission such as the DVI signal of computer display card output or VGA signal, and the present invention is strong to the ability that is fit to certainly of other format signal, all rapidly it is formatted as unified standard of the present invention at different signals, makes things convenient for the signal processing of rear end.
The total data (pixel) of total line number of the resolution of every kind of signal in the DVI standard of prior art (row pixel) and every row all is different, adopting following formula: speed=row pixel * field pixel * color depth * frame per second * (10b/8b coding) calculates in the transmission rate, the speed of various signal transmission is all different, and so the transmitting terminal in data will inevitably increase complexity because of the different of speed in design with receiving terminal.And with respect to prior art, the present invention adopts the standard of 2160*1250 to unify picture format to transmit, image does not compress, total pixel is fixed, the most important is that transmission rate is fixed, can not change, therefore reduce the transmitting terminal and the receiving terminal complexity in design of data along with the change of resolution.
At present PCIE signal and sdi signal arranged by the Serial Data Transfer Mode vision signal, the signal rate of PCIE1.1 standard is 2.5Gbps, through the 8b/10b coding, valid data are 2Gbps, this wherein also has a large amount of communication signals such as PCIE signal packet header bag tail, the video data that transmits in its valid data promptly is lower than 1.6Gbps greatly about 70%-80%, and the effective video transmission speed of non-compression is far below the speed of the present invention 2.43 Gbps.And the SDI standard has 270Mbps, 1.485Gbps and three kinds of standard speed of 2.970Gbps are supported the normal video data format, transmit the data of 1920*1080 resolution if desired, the necessary 2.970Gbps(3G HD-SDI that uses) standard, though this transmission rate is greater than 2.43Gpbs about 25%, as seen under the identical situation of the effective data volume of the non-compression of transmission, the physical signalling transmission speed of wanting required for the present invention is lower, in other words under the identical situation of physical signalling transmission speed, the non-compression valid data that the effective video data of non-compression of the present invention's transmission will transmit much larger than this standard.
In addition, the RGB ratio is the format signal of 4:2:2 when the SDI interface transmits, and the data when the present invention formats are the signal format according to 4:4:4, absolute free of data damage, signal quality height.
In addition, as shown in Figure 2, the present invention also provides a kind of transmitting device of picture signal, comprises signal acquisition module, synchronization of modules, parallel/serial modular converter, Cross module and serial/parallel modular converter, also comprises formatting module; Signal acquisition module, formatting module, synchronization of modules, parallel/serial modular converter, Cross module and serial/parallel modular converter connect successively.
The function of signal acquisition module is the images acquired signal, obtains parallel picture signal.
The function of formatting module is according to default parameter, and the parallel picture signal consolidation form that signal acquisition module is obtained is the parallel picture signal of 2160*1250 pixel.
The function of synchronization module is that the parallel picture signal behind the formatting module consolidation form is carried out Synchronous Processing.As an embodiment preferably, the reference clock of synchronization module of the present invention can be set at 243MHz or 121.5MHz.
Parallel/serial modular converter is used for the parallel picture signal of synchronization module is converted to the data-signal of high speed serialization.Parallel/serial modular converter comprises the SerDes port, and this SerDes port carries out the 8bit/10bit coding with the data of transmission, and output speed is the coded data of 2.43Gbps.
Cross module is used to adopt high speed serialization numeral space switching technology, the data-signal of scheduling high-speed serial.
Serial/parallel modular converter is used for the high-speed serial data signal of Cross module is carried out serial/parallel conversion, restores parallel picture signal.
In fact, the transmitting device of picture signal of the present invention, except the signal acquisition module of leading portion, other comprise formatting module, synchronization module, parallel/serial modular converter, Cross module and serial/parallel modular converter all are integrated on a slice fpga chip.
In addition, as shown in Figure 4, the present invention also provides a kind of formatting mechanism of picture signal, comprises memory module and formatting module.
The function of memory module is that storage needs formative picture signal.
The function of formatting module is according to default parameter, is the picture signal of 2160*1250 pixel with the picture signal consolidation form in the memory module.
The formatting method of the transmission method of picture signal of the present invention, device and picture signal, device, signal format in the image transmission course is unified, be 2160*1250, this standard has been included all forms of several Video Applications of present normal use, and is strong to the signal adaptive ability of various forms; Do not carry out picture quality is had the compressed encoding of damage in the serialization process, carry out real-time Transmission, reduced the design complexity of data sending terminal and receiving terminal with the fixed rate of 2.43Gbps; All signals adopt unified transformat, signal can exchange arbitrarily like this, also only need to adopt unified decoding process in the rear end, avoided because the problem that the signals that the signal format difference causes can not exchange arbitrarily, reduced the kind of the signal decoding of rear end.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (7)
1. the transmission method of a picture signal is characterized in that, may further comprise the steps:
Step S1 obtains parallel picture signal;
Step S2 is formatted as described parallel picture signal the unified resolution standard of 2160*1250 pixel;
Step S3 carries out Synchronous Processing, and the conversion of the picture signal after will handling becomes the data-signal of high speed serialization;
Step S4 adopts high speed serialization numeral space switching technology, dispatches described high-speed serial data signal;
Step S5 carries out serial/parallel conversion to the data-signal of described high speed serialization, restores parallel picture signal.
2. the transmission method of a kind of picture signal according to claim 1 is characterized in that, is 2.43Gbps according to the fixed rate of the image that resolution calculated of described 2160*1250 pixel transmission.
3. the transmitting device of a picture signal comprises signal acquisition module, synchronization of modules, parallel/serial modular converter, Cross module and serial/parallel modular converter, it is characterized in that, also comprises formatting module; Described signal acquisition module, formatting module, synchronization of modules, parallel/serial modular converter, Cross module and serial/parallel modular converter connect successively;
Described signal acquisition module is used for the images acquired signal, obtains parallel picture signal;
Described formatting module is used for according to default parameter, and the parallel picture signal consolidation form that described signal acquisition module is obtained is the parallel picture signal of 2160*1250 pixel;
Described synchronization module is used for the parallel picture signal behind the described formatting module consolidation form is carried out Synchronous Processing;
Described parallel/serial modular converter is used for the parallel picture signal of described synchronization module is converted to the data-signal of high speed serialization;
Described Cross module is used to adopt high speed serialization numeral space switching technology, dispatches the data-signal of described high speed serialization;
Described serial/parallel modular converter is used for the high-speed serial data signal of described Cross module is carried out serial/parallel conversion, restores parallel picture signal.
4. the transmitting device of a kind of picture signal according to claim 3, it is characterized in that, described parallel/serial modular converter comprises the SerDes port, and described SerDes port carries out the 8bit/10bit coding with the data of transmission, and output speed is the coded data of 2.43Gbps.
5. the transmitting device of a kind of picture signal according to claim 3 is characterized in that, the reference clock of described synchronization module is set at 243MHz or 121.5MHz.
6. the formatting method of a picture signal is characterized in that, may further comprise the steps:
Step S201 will need formative picture signal to store;
Whether step S202, the horizontal pixel of judging described image be less than 2160, if then replenish corresponding inactive pixels;
Whether step S203, the vertical pixel of judging described image be less than 1250, if then replenish corresponding inactive pixels;
Step S204 if the resolution of described image is 2160*1250, then finishes the format of this image.
7. the formatting mechanism of a picture signal is characterized in that, comprises memory module and formatting module;
Described memory module is used for the formative picture signal of storage needs;
Described formatting module is used for according to default parameter, is the picture signal of 2160*1250 pixel with the picture signal consolidation form in the described memory module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105788643A CN102082951A (en) | 2010-12-08 | 2010-12-08 | Transmission method and device and formatting method and device of image signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105788643A CN102082951A (en) | 2010-12-08 | 2010-12-08 | Transmission method and device and formatting method and device of image signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102082951A true CN102082951A (en) | 2011-06-01 |
Family
ID=44088679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105788643A Pending CN102082951A (en) | 2010-12-08 | 2010-12-08 | Transmission method and device and formatting method and device of image signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102082951A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826081A (en) * | 2013-11-28 | 2014-05-28 | 苏州长风航空电子有限公司 | Dual link DVI signal producing system |
| CN104065963A (en) * | 2014-06-27 | 2014-09-24 | 广东威创视讯科技股份有限公司 | Encoding and decoding system, and resolution fast switching method and device thereof |
| CN104168438A (en) * | 2014-08-23 | 2014-11-26 | 广州市奥威亚电子科技有限公司 | Video transmission method for achieving point-by-point correspondence based on SDI |
| CN104349205A (en) * | 2014-11-17 | 2015-02-11 | 广东威创视讯科技股份有限公司 | Audio and video processing method and system |
| CN104469462A (en) * | 2014-12-03 | 2015-03-25 | 成都德芯数字科技有限公司 | Digital video signal processing system and method |
| CN105573197A (en) * | 2015-12-14 | 2016-05-11 | 武汉精测电子技术股份有限公司 | DP signal generating device and method for customizing speed |
| CN107197329A (en) * | 2017-06-16 | 2017-09-22 | 广州市百果园信息技术有限公司 | Method for video coding and device, storage medium |
| CN107438091A (en) * | 2016-05-25 | 2017-12-05 | 宏正自动科技股份有限公司 | Image management and control device, system and method for industrial embedded system |
| CN107507147A (en) * | 2017-08-29 | 2017-12-22 | 丹阳华神电器有限公司 | A kind of image intelligent restoring method and device for medical display device |
| CN109963066A (en) * | 2017-12-25 | 2019-07-02 | 深圳市祈飞科技有限公司 | A kind of image obtains analytic method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6956589B2 (en) * | 2003-09-29 | 2005-10-18 | Beon Media Inc. | Method and system for specifying zoom size |
| CN101246678A (en) * | 2008-02-01 | 2008-08-20 | 广东威创视讯科技股份有限公司 | Multi-screen real-time signal processing method and system |
| CN101557495A (en) * | 2009-05-18 | 2009-10-14 | 上海华平信息技术股份有限公司 | Bandwidth control method of video conferencing system |
| CN101661737A (en) * | 2009-08-25 | 2010-03-03 | 上海北大方正科技电脑***有限公司 | Method for switching between wide screen and general screen of liquid crystal display |
| CN101669361A (en) * | 2007-02-16 | 2010-03-10 | 马维尔国际贸易有限公司 | Methods and systems for improving low resolution and low frame rate video |
| CN101702305A (en) * | 2009-10-23 | 2010-05-05 | 广东威创视讯科技股份有限公司 | Method and device for converting, transmitting and processing multi-screen images |
-
2010
- 2010-12-08 CN CN2010105788643A patent/CN102082951A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6956589B2 (en) * | 2003-09-29 | 2005-10-18 | Beon Media Inc. | Method and system for specifying zoom size |
| CN101669361A (en) * | 2007-02-16 | 2010-03-10 | 马维尔国际贸易有限公司 | Methods and systems for improving low resolution and low frame rate video |
| CN101246678A (en) * | 2008-02-01 | 2008-08-20 | 广东威创视讯科技股份有限公司 | Multi-screen real-time signal processing method and system |
| CN101557495A (en) * | 2009-05-18 | 2009-10-14 | 上海华平信息技术股份有限公司 | Bandwidth control method of video conferencing system |
| CN101661737A (en) * | 2009-08-25 | 2010-03-03 | 上海北大方正科技电脑***有限公司 | Method for switching between wide screen and general screen of liquid crystal display |
| CN101702305A (en) * | 2009-10-23 | 2010-05-05 | 广东威创视讯科技股份有限公司 | Method and device for converting, transmitting and processing multi-screen images |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826081A (en) * | 2013-11-28 | 2014-05-28 | 苏州长风航空电子有限公司 | Dual link DVI signal producing system |
| CN104065963A (en) * | 2014-06-27 | 2014-09-24 | 广东威创视讯科技股份有限公司 | Encoding and decoding system, and resolution fast switching method and device thereof |
| CN104168438A (en) * | 2014-08-23 | 2014-11-26 | 广州市奥威亚电子科技有限公司 | Video transmission method for achieving point-by-point correspondence based on SDI |
| CN104168438B (en) * | 2014-08-23 | 2018-06-05 | 广州市奥威亚电子科技有限公司 | Point-by-point corresponding video transmission method is realized based on SDI |
| 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 |
| CN104349205A (en) * | 2014-11-17 | 2015-02-11 | 广东威创视讯科技股份有限公司 | Audio and video processing method and system |
| CN104469462A (en) * | 2014-12-03 | 2015-03-25 | 成都德芯数字科技有限公司 | Digital video signal processing system and method |
| CN104469462B (en) * | 2014-12-03 | 2017-12-12 | 成都德芯数字科技股份有限公司 | A kind of digital video signal processing system and method |
| CN105573197A (en) * | 2015-12-14 | 2016-05-11 | 武汉精测电子技术股份有限公司 | DP signal generating device and method for customizing speed |
| CN105573197B (en) * | 2015-12-14 | 2018-01-05 | 武汉精测电子技术股份有限公司 | The DP signal generation apparatus and method of a kind of self-defined speed |
| CN107438091A (en) * | 2016-05-25 | 2017-12-05 | 宏正自动科技股份有限公司 | Image management and control device, system and method for industrial embedded system |
| CN107197329A (en) * | 2017-06-16 | 2017-09-22 | 广州市百果园信息技术有限公司 | Method for video coding and device, storage medium |
| CN107507147A (en) * | 2017-08-29 | 2017-12-22 | 丹阳华神电器有限公司 | A kind of image intelligent restoring method and device for medical display device |
| CN109963066A (en) * | 2017-12-25 | 2019-07-02 | 深圳市祈飞科技有限公司 | A kind of image obtains analytic method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102082951A (en) | Transmission method and device and formatting method and device of image signals | |
| US11741916B2 (en) | Video frame rate compensation through adjustment of timing of scanout | |
| CN201577135U (en) | Matrix with multiple input formats and high rate | |
| CN103347163A (en) | Ultra high definition video image processing and transmitting system and method thereof | |
| WO2022134560A1 (en) | Data transmission and receiving methods for display screen, and sending and receiving cards of display screen | |
| CN102413322A (en) | Avionics digital video bus (ADVB) framing system and method based on line synchronization | |
| CN110933333A (en) | Image acquisition, storage and display system based on FPGA | |
| CN101303638A (en) | Multi-USB interface high performance image adaptation apparatus as well as signal transmission method | |
| CN102801948B (en) | High-definition serial digital interface data transfer device and device | |
| CN102843522A (en) | Video stitching processing card based on PCIE, as well as control system and control method for video stitching processing card | |
| CN201667699U (en) | Digital video information monitoring device | |
| CN109587421B (en) | HD-SDI/3G-SDI transceiving and real-time picture-in-picture switching output processing method | |
| CN106878650B (en) | DVI to VGA video conversion device and method thereof | |
| CN201359839Y (en) | Image-enhanced screen splicing system | |
| CN204031327U (en) | Based on DisplayPort, realize the control device of video wall splicing | |
| CN215453109U (en) | Car machine display device and car | |
| CN203136042U (en) | Device for expanding camera output interface | |
| CN202488592U (en) | Real-time high definition video transmitter | |
| CN113660431A (en) | Multi-screen display method of vehicle-mounted display equipment, vehicle-mounted display equipment and vehicle | |
| CN210428420U (en) | Display adapting device without frame buffer | |
| CN103179372B (en) | Full-color high-definition video control system for light-emitting diode (LED) display screen | |
| CN201716967U (en) | Color TFT-LCD liquid crystal display control device supporting images in JPEG format | |
| CN110557581A (en) | system for converting multiple interfaces into multiple interfaces under ultrahigh definition resolution and compatible method thereof | |
| CN202168141U (en) | Video stitching processing card based on PCIE | |
| CN201359840Y (en) | Screen splicing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110601 |