CN105681682A - Video data transmission method and system - Google Patents
Video data transmission method and system Download PDFInfo
- Publication number
- CN105681682A CN105681682A CN201610033870.8A CN201610033870A CN105681682A CN 105681682 A CN105681682 A CN 105681682A CN 201610033870 A CN201610033870 A CN 201610033870A CN 105681682 A CN105681682 A CN 105681682A
- Authority
- CN
- China
- Prior art keywords
- video data
- road
- overlay
- video
- data
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Traffic Control Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to a video data transmission method and system. The video data transmission method comprises the following steps: selecting k paths of video data as basic video data from n paths of video data, wherein the n and k are positive integers, and the k is smaller than the n; simultaneously performing time-delay processing on (n-k) paths of video data excepting for the basic video data, and respectively superposing the processed (n-k) paths of video data to one of the k paths of basic video data, thereby obtaining superposed video data; transmitting the superposed video data to a receiving end, and after the receiving end receives the superposed video data, restoring the superposed video data to be the n paths of video data. According to the video data transmission method and system, when multiple video paths exist, multiple paths of video data can be converted into a few paths of video data to be transmitted correspondingly, so that the quality of video data during transmission can be ensured.
Description
Technical field
The present invention relates to technical field of video signal, particularly relate to a kind of method of transmitting video data and system.
Background technology
Along with multimedia extensive use in work or life etc., video signal occur in more and more frequently people the visual field in. Under the environment using frequency to uprise gradually video signal, the transmission quality of associated video data obtains comparatively to be paid close attention to significantly.
In practical application, usually need between different boards, be transmitted multi-channel video signal, traditional method is by adopting multiple physical link to be transmitted, when running into video way and being many, can cause and a large amount of cable occurs between board, thus easily affecting the transmission quality of video data.
Summary of the invention
Based on this, it is necessary to easily affect the technical problem of video data transmission quality for traditional scheme, it is provided that a kind of method of transmitting video data and system.
A kind of method of transmitting video data, comprises the steps:
N road video data selects video data based on the video data of k road; Wherein, n, k are positive integer, k < n;
After n-k road video data beyond base video data is carried out delay process simultaneously, it is superimposed to k roadbed plinth video data respectively on the way, obtains overlay video data;
By overlay video data transmission to receiving terminal, described overlay video data convert, after receiving described overlay video data, is become n road video data by receiving terminal.
A kind of video-frequency data transmission system, including:
Select module, for selecting video data based on the video data of k road in the video data of n road; Wherein, n, k are positive integer, k < n;
Laminating module, after the n-k road video data beyond base video data is carried out delay process simultaneously, is superimposed to k roadbed plinth video data respectively on the way, obtains overlay video data;
Recovery module, for by overlay video data transmission to receiving terminal, described overlay video data convert, after receiving described overlay video data, is become n road video data by receiving terminal.
Above-mentioned method of transmitting video data and system, first in the video data of n road, select video data based on the video data of k road, after other video datas are carried out delay process simultaneously, it is superimposed to base video data respectively on the way, obtain corresponding overlay video data, transmit it to receiving terminal again, at receiving terminal, described overlay video data convert is become n road video data, to realize the transmission of said n routes video data, it is when running into video way and being many, the video data that multi-path video data can convert to less way transmits accordingly, the video frequency data quality in transmitting procedure is made to be guaranteed.
Accompanying drawing explanation
Fig. 1 is the method for transmitting video data flow chart of an embodiment;
Fig. 2 is the video data time delay schematic diagram of an embodiment;
Fig. 3 is the video data restoration schematic diagram of an embodiment;
Fig. 4 is the video-frequency data transmission system structural representation of an embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, the method for transmitting video data of the present invention and the detailed description of the invention of device are described in detail.
It show the method for transmitting video data flow chart of an embodiment with reference to Fig. 1, Fig. 1, comprise the steps:
S10, selects video data based on the video data of k road in the video data of n road; Wherein, n, k are positive integer, k < n;
In above-mentioned steps S10, if there is more way video data to need transmission, in order to avoid the technical problem occurring the impact transmission quality such as a large amount of cables or efficiency between board occurs, video data based on the video data of k road can be selected in needing the n road video data being transmitted, again other n-k road video datas are carried out time delay and superposition, n road video data is converted to k road video data be transmitted, the bandwidth utilizing existing transmission link with maximal efficiency, control the way of video data in transmitting procedure, it is ensured that the transmission quality of video data. Many ways video data that above-mentioned needs are transmitted has identical resolution and frame per second.
S20, after the n-k road video data beyond base video data is carried out delay process simultaneously, is superimposed to k roadbed plinth video data respectively on the way, obtains overlay video data;
In above-mentioned steps S20, after selecting k roadbed plinth video data, it is possible to the n-k road video data except base video data is carried out delay process simultaneously, then is superimposed to base video data respectively on the way, so, n road video data is just converted to k road video data. Under normal circumstances, in order to avoid superposition rear video data cause confusion phenomenon, the video data after the delay process of each roadbed plinth video data superposition one tunnel.
Time delay Hou n-k road video counts is being superimposed in the process of k roadbed plinth video data, kth+1 road video data (the 1st road video datas in the video data of n-k road except base video data) can be superimposed to the 1st road video data in k roadbed plinth video data, by the 2nd road video data in kth+2 road video data overlay to k roadbed plinth video data, by that analogy, until by complete for the n-k road video data overlay except base video data, make overlay video packet containing all information in the video data of n road waiting for transmission, to ensure the information integrity of overlay video data, thus ensureing the information integrity of the video data transmitted.
S30, by overlay video data transmission to receiving terminal, described overlay video data convert, after receiving described overlay video data, is become n road video data by receiving terminal.
Receiving terminal is after receiving overlay video data, it is possible to first obtains the composition video data of overlay video data Zhong Ge road video data, then obtains the delayed data forming video data in the video data of each road respectively; Such as overlay video data Zhong Mou road video data is to be formed by the 1st roadbed plinth video data overlay kth+1 road video data, and kth+1 road video data has how many time delays etc. before superposition; Then the composition video data of overlay video data Zhong Ge road video data can be divided into the multi-path video data before superposition, it is reduced to original n road video data further according to corresponding delayed data, makes receiving terminal can process accordingly said n routes video data is corresponding.
The method of transmitting video data that the present embodiment provides, first in the video data of n road, select video data based on the video data of k road, after other video datas are carried out delay process simultaneously, it is superimposed to base video data respectively on the way, obtain corresponding overlay video data, transmit it to receiving terminal again, at receiving terminal, described overlay video data convert is become n road video data, to realize the transmission of said n routes video data, it is when running into video way and being many, the video data that multi-path video data can convert to less way transmits accordingly, the video frequency data quality in transmitting procedure is made to be guaranteed.
In one embodiment, above-mentioned n-k road video data beyond base video data is carried out delay process simultaneously after, the process on the way being superimposed to k roadbed plinth video data respectively may include that
If k < is n≤2k, by the delay time t simultaneously of the n-k road video data except base video data; Wherein, t is arithmetic number;
Time delay Hou n-k road video data is superimposed on a roadbed plinth video data respectively.
If k < is n≤2k, after selecting video data based on the video data of k road, there remains n-k road video data, above-mentioned n-k < k, it is possible to by video data Zhong Ge road, n-k road video data delay time t, be superimposed to k base video data respectively on the way, wherein, at most video data after superposition one tunnel time delay on each roadbed plinth video data, makes n road video data be converted to k road video data, to transmit accordingly. The time t value of above-mentioned n-k road video data time delay can be configured according to concrete video data, is such as set to 1 second, 2 seconds equivalences.
Above-mentioned by the n-k road video data time delay a second except base video data, and the process on the way being superimposed to each roadbed plinth video data respectively may include that
First by k roadbed plinth video data input fifo memory, the delay time of above-mentioned FIFO memory is arranged t;
T Hou Jiang n-k interval time road video data input fifo memory, then the video data being previously entered is exported from above-mentioned FIFO memory, to realize the time delay of corresponding video data, carry out corresponding superposition.
In one embodiment, above-mentioned n-k road video data beyond base video data is carried out delay process simultaneously after, the process on the way being superimposed to k roadbed plinth video data respectively may include that
If n >=2k, then the n-k road video data except base video data is divided into some groups; Wherein, the way of video data is often organized less than k;
Determine the order b of each group of video data, b group video data is carried out time delay b*t; Wherein, b is positive integer, and symbol * represents and is multiplied;
Each group of video data Zhong Mei road video data is sequentially overlapped in order to a roadbed plinth video data.
Above-mentioned time t can be configured according to concrete video data, is such as set to 1 second, 2 seconds equivalences.
In order to ensure the orderly superposition of video data, video data after each at most superposition one tunnel time delay of every road video data, if n >=2k, after time delay and overlap-add procedure, it is possible that there is video data do not obtain superposition or the technical problem of superposition confusion, now, n-k road video data except base video data can be divided into some groups, determine the order b of each group of video data, respectively each group of video data is carried out corresponding time delay and superposition in order, to ensure the integrity of the overlay video data finally obtained.
As an embodiment, the above-mentioned process that b group video data carries out time delay b*t may include that
Each group of video data is sequentially input FIFO memory in order; Wherein, described FIFO memory being set delay time t, the interval of two adjacent groups video data input fifo memory is t;
From described FIFO memory, export corresponding video data, obtain respectively organizing video data after time delay.
The present embodiment utilizes FIFO memory that corresponding video data is carried out delay process, generally, the maximum transmitted clock of video data transmission link is more than video data pixel clock, after FIFO memory clock zone is changed, transmission required time can effectively be shortened, such that it is able to improve corresponding efficiency of transmission.
In one embodiment, described overlay video data convert is become the process of n road video data may include that by above-mentioned receiving terminal
Obtain the composition video data of overlay video data Zhong Ge road video data;
Obtain the delayed data forming video data in the video data of each road respectively;
According to described delayed data, each composition video data restoration is become n road video data.
In one embodiment, as shown in Figure 2, if there being 9 road video datas (video flowing) to need transmission, can first select video data based on 3 road video datas (video flowing 1, video flowing 2 and video flowing 3), using video flowing 4, video flowing 5 and video flowing 6 as first group of video data, it is superimposed on video flowing 1, video flowing 2 and video flowing 3 after the time delay a second respectively, wherein can the video flowing 4 after time delay be superimposed on video flowing 1, video flowing 5 after time delay is superimposed on video flowing 2, the video flowing 6 after time delay is superimposed on video flowing 3; Again using video flowing 7, video flowing 8 and video flowing 9 as second group of video data, it is superimposed on the video flowing 4 after superposition, video flowing 5 and video flowing 6 after the time delay 2a second respectively, wherein can the video flowing 7 after time delay be superimposed on video flowing 4, video flowing 8 after time delay is superimposed on video flowing 5, being superimposed on video flowing 6 by the video flowing 9 after time delay, such 9 road video datas are just converted into 3 road overlay video data.
After 3 road overlay video data after above-mentioned time delay and overlap-add procedure are transported to receiving terminal, as shown in Figure 3, receiving terminal can according to the composition video data in above-mentioned overlay video data and relevant delayed data, 3 road overlay video data are decomposed into 9 road video datas, such as, first via overlay video data convert is become video flowing 1, video flowing 4 and video flowing 7 etc., corresponding clock zone conversion is carried out further according to above-mentioned delayed data, 3 road overlay video data convert of its reception just can be become 9 original road video datas by receiving terminal, realize the transmission to multi-path video data.
The video-frequency data transmission system structural representation of an embodiment it is shown with reference to Fig. 4, Fig. 4, including:
Select module 10, for selecting video data based on the video data of k road in the video data of n road; Wherein, n, k are positive integer, k < n;
Laminating module 20, after the n-k road video data beyond base video data is carried out delay process simultaneously, is superimposed to k roadbed plinth video data respectively on the way, obtains overlay video data;
Recovery module 30, for by overlay video data transmission to receiving terminal, described overlay video data convert, after receiving described overlay video data, is become n road video data by receiving terminal.
In one embodiment, above-mentioned laminating module can be further used for:
If k < is n≤2k, by the delay time t simultaneously of the n-k road video data except base video data;
Time delay Hou n-k road video data is superimposed on a roadbed plinth video data respectively.
In one embodiment, above-mentioned laminating module can be further used for:
If n >=2k, then the n-k road video data except base video data is divided into some groups; Wherein, the way of video data is often organized less than k;
Determine the order b of each group of video data, b group video data is carried out time delay b*t; Wherein, symbol * represents and is multiplied;
Each group of video data Zhong Mei road video data is sequentially overlapped in order to a roadbed plinth video data.
As an embodiment, above-mentioned laminating module can be further used for:
Each group of video data is sequentially input FIFO memory in order; Wherein, described FIFO memory being set delay time t, the interval of two adjacent groups video data input fifo memory is t;
From described FIFO memory, export corresponding video data, obtain respectively organizing video data after time delay.
In one embodiment, above-mentioned recovery module can be further used for:
Obtain the composition video data of overlay video data Zhong Ge road video data;
Obtain the delayed data forming video data in the video data of each road respectively;
According to described delayed data, each composition video data restoration is become n road video data.
Video data transmission device provided by the invention and method of transmitting video data one_to_one corresponding provided by the invention, the technical characteristic set forth in the embodiment of described method of transmitting video data and beneficial effect thereof, all suitable in the embodiment of video data transmission device, hereby give notice that.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics is absent from contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent. It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a method of transmitting video data, it is characterised in that comprise the steps:
N road video data selects video data based on the video data of k road; Wherein, n, k are positive integer, k < n;
After n-k road video data beyond base video data is carried out delay process simultaneously, it is superimposed to k roadbed plinth video data respectively on the way, obtains overlay video data;
By overlay video data transmission to receiving terminal, described overlay video data convert, after receiving described overlay video data, is become n road video data by receiving terminal.
2. method of transmitting video data according to claim 1, it is characterised in that described n-k road video data beyond base video data is carried out delay process simultaneously after, the process on the way being superimposed to k roadbed plinth video data respectively includes:
If k < is n≤2k, by the delay time t simultaneously of the n-k road video data except base video data;
Time delay Hou n-k road video data is superimposed on a roadbed plinth video data respectively.
3. method of transmitting video data according to claim 1, it is characterised in that described n-k road video data beyond base video data is carried out delay process simultaneously after, the process on the way being superimposed to k roadbed plinth video data respectively includes:
If n >=2k, then the n-k road video data except base video data is divided into some groups; Wherein, the way of video data is often organized less than k;
Determine the order b of each group of video data, b group video data is carried out time delay b*t; Wherein, symbol * represents and is multiplied;
Each group of video data Zhong Mei road video data is sequentially overlapped in order to a roadbed plinth video data.
4. method of transmitting video data according to claim 3, it is characterised in that the described process that b group video data carries out time delay b*t includes:
Each group of video data is sequentially input FIFO memory in order; Wherein, described FIFO memory being set delay time t, the interval of two adjacent groups video data input fifo memory is t;
From described FIFO memory, export corresponding video data, obtain respectively organizing video data after time delay.
5. method of transmitting video data according to claim 1, it is characterised in that described overlay video data convert is become the process of n road video data to include by described receiving terminal:
Obtain the composition video data of overlay video data Zhong Ge road video data;
Obtain the delayed data forming video data in the video data of each road respectively;
According to described delayed data, each composition video data restoration is become n road video data.
6. a video-frequency data transmission system, it is characterised in that including:
Select module, for selecting video data based on the video data of k road in the video data of n road; Wherein, n, k are positive integer, k < n;
Laminating module, after the n-k road video data beyond base video data is carried out delay process simultaneously, is superimposed to k roadbed plinth video data respectively on the way, obtains overlay video data;
Recovery module, for by overlay video data transmission to receiving terminal, described overlay video data convert, after receiving described overlay video data, is become n road video data by receiving terminal.
7. video-frequency data transmission system according to claim 6, it is characterised in that described laminating module is further used for:
If k < is n≤2k, by the delay time t simultaneously of the n-k road video data except base video data;
Time delay Hou n-k road video data is superimposed on a roadbed plinth video data respectively.
8. video-frequency data transmission system according to claim 6, it is characterised in that described laminating module is further used for:
If n >=2k, then the n-k road video data except base video data is divided into some groups; Wherein, the way of video data is often organized less than k;
Determine the order b of each group of video data, b group video data is carried out time delay b*t; Wherein, symbol * represents and is multiplied;
Each group of video data Zhong Mei road video data is sequentially overlapped in order to a roadbed plinth video data.
9. method of transmitting video data according to claim 8, it is characterised in that described laminating module is further used for:
Each group of video data is sequentially input FIFO memory in order; Wherein, described FIFO memory being set delay time t, the interval of two adjacent groups video data input fifo memory is t;
From described FIFO memory, export corresponding video data, obtain respectively organizing video data after time delay.
10. method of transmitting video data according to claim 6, it is characterised in that described recovery module is further used for:
Obtain the composition video data of overlay video data Zhong Ge road video data;
Obtain the delayed data forming video data in the video data of each road respectively;
According to described delayed data, each composition video data restoration is become n road video data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610033870.8A CN105681682B (en) | 2016-01-19 | 2016-01-19 | Method of transmitting video data and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610033870.8A CN105681682B (en) | 2016-01-19 | 2016-01-19 | Method of transmitting video data and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105681682A true CN105681682A (en) | 2016-06-15 |
| CN105681682B CN105681682B (en) | 2019-06-14 |
Family
ID=56301541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610033870.8A Active CN105681682B (en) | 2016-01-19 | 2016-01-19 | Method of transmitting video data and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105681682B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2461830A1 (en) * | 2001-09-26 | 2003-04-03 | Interact Devices | System and method for communicating media signals |
| CN1489309A (en) * | 2002-08-27 | 2004-04-14 | ���µ�����ҵ��ʽ���� | Broadcasting system, receiving equipment and programme with transmitting device and receiving device |
| CN2927177Y (en) * | 2006-07-05 | 2007-07-25 | 成都东方监控技术有限公司 | Multi-path audio-video processing system |
| CN101621674A (en) * | 2009-07-09 | 2010-01-06 | 华为技术有限公司 | Processing method of video data and related equipment and system |
| CN101977305A (en) * | 2010-10-27 | 2011-02-16 | 北京中星微电子有限公司 | Video processing method, device and system |
| CN102098453A (en) * | 2010-12-13 | 2011-06-15 | 广东威创视讯科技股份有限公司 | Video streaming control system of multi-screen processor cascading extended system |
| CN102301730A (en) * | 2011-07-18 | 2011-12-28 | 华为技术有限公司 | Method, device and system for transmitting and processing multichannel AV |
| EP2469853A1 (en) * | 2009-09-10 | 2012-06-27 | Huawei Device Co., Ltd. | Method and device for processing video image data, system and terminal for video conference |
| CN102724473A (en) * | 2012-06-18 | 2012-10-10 | 安徽秋田电子有限公司 | Two-wire multichannel signal superposition/separation system |
| CN204733280U (en) * | 2015-06-18 | 2015-10-28 | 安徽秋田电子有限公司 | Four road AHD video superimpose transmitters |
-
2016
- 2016-01-19 CN CN201610033870.8A patent/CN105681682B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2461830A1 (en) * | 2001-09-26 | 2003-04-03 | Interact Devices | System and method for communicating media signals |
| CN1489309A (en) * | 2002-08-27 | 2004-04-14 | ���µ�����ҵ��ʽ���� | Broadcasting system, receiving equipment and programme with transmitting device and receiving device |
| CN2927177Y (en) * | 2006-07-05 | 2007-07-25 | 成都东方监控技术有限公司 | Multi-path audio-video processing system |
| CN101621674A (en) * | 2009-07-09 | 2010-01-06 | 华为技术有限公司 | Processing method of video data and related equipment and system |
| EP2469853A1 (en) * | 2009-09-10 | 2012-06-27 | Huawei Device Co., Ltd. | Method and device for processing video image data, system and terminal for video conference |
| CN101977305A (en) * | 2010-10-27 | 2011-02-16 | 北京中星微电子有限公司 | Video processing method, device and system |
| CN102098453A (en) * | 2010-12-13 | 2011-06-15 | 广东威创视讯科技股份有限公司 | Video streaming control system of multi-screen processor cascading extended system |
| CN102301730A (en) * | 2011-07-18 | 2011-12-28 | 华为技术有限公司 | Method, device and system for transmitting and processing multichannel AV |
| CN102724473A (en) * | 2012-06-18 | 2012-10-10 | 安徽秋田电子有限公司 | Two-wire multichannel signal superposition/separation system |
| CN204733280U (en) * | 2015-06-18 | 2015-10-28 | 安徽秋田电子有限公司 | Four road AHD video superimpose transmitters |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105681682B (en) | 2019-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108495120A (en) | A kind of video frame detection, processing method, apparatus and system | |
| EP2667529A3 (en) | Method and apparatus for parallel demodulation of high symbol rate data streams in a communications system | |
| CN101968730A (en) | Interactive synchronous processing method and system for multiprocessor cascading signal transmission data | |
| EP3896964B1 (en) | Data processing method, apparatus and device, and storage medium | |
| GB2522297A (en) | Methods and systems for displaying network performance information | |
| CN108156511B (en) | Method and system for realizing double-screen or multi-screen splicing display | |
| CN104811752A (en) | Multi-screen synchronization method and playing system for the same local area network | |
| CN104202506A (en) | Image stitching processor and image processing method thereof | |
| CN103606367A (en) | Signal cascade transmission method and signal cascade device | |
| CN101651838A (en) | Method, system and device for transmitting video data | |
| CN105681682A (en) | Video data transmission method and system | |
| CN204790967U (en) | Mosaicing processing ware that can show high definition picture | |
| CN103067690A (en) | Method and device of equalized audio-video data transmission based on intelligent monitoring platform | |
| NO20062220L (en) | Device and method for generating trademarks | |
| CN108347569A (en) | Multi-channel high-speed serial digital video signal switching equipment, switching method and system | |
| CN109308146A (en) | A kind of character string adaptivenon-uniform sampling display methods and system based on control property | |
| CN106656804A (en) | Low latency message forwarding method and device and switch | |
| KR20110078164A (en) | Receiver for mipi csi with multi-lane structure | |
| CN108650047A (en) | A kind of Serial data receiving real-time synchronization observation circuit and monitoring method | |
| CN111859883B (en) | Program form creation method and device and electronic equipment | |
| US20170195608A1 (en) | Methods for transmitting audio and video signals and transmission system thereof | |
| CN103686170B (en) | Short-distance multi-channel video transmission method and device | |
| CN210836059U (en) | Spliced screen device | |
| CN107358899A (en) | A kind of the point screen device and method of the multiplexing based on LVDS transmission | |
| CN104853115B (en) | Multichannel tracks video fast switch over method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |