CN101534427A - Screen real-time migration method - Google Patents
Screen real-time migration method Download PDFInfo
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- CN101534427A CN101534427A CN200810043169A CN200810043169A CN101534427A CN 101534427 A CN101534427 A CN 101534427A CN 200810043169 A CN200810043169 A CN 200810043169A CN 200810043169 A CN200810043169 A CN 200810043169A CN 101534427 A CN101534427 A CN 101534427A
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Abstract
The invention discloses a screen real-time migration method. By using a power line as the transmission medium of video and audio signals between a local computer and a remote-end display, the restriction of screen transmission distance is overcome; by compressing and decompressing the video signals through a frame-by-frame processing method, the delay in processing of the screen image is reduced, thereby minimizing the image processing time to the image, increasing the response time for signal transmission, and further realizing the real-time playing of screen data on the remote-end display; in addition, due to no need of a cache memory for caching data firstly, the data can be processed and transmitted at any time, therefore, the data transmission time is further saved.
Description
Technical field
The present invention relates to a kind of screen moving method, relate in particular to a kind of screen real-time migration method.
Background technology
At present, in the time the video on the computer and audio transmission need being shown, generally all need to use special data wire to other equipment (as television set etc.), therefore transmission range is had certain restriction, can't carry out longer-distance transmission.
In addition, in the prior art, owing to can't realize fast processing to signal, make in the data transmission procedure response time of data slow excessively, therefore after being transferred to the video and/or audio signal that is transmitted on other equipment by data wire, other equipment also need advanced to the received signal row cache, and then carry out processing such as follow-up decompress(ion), demodulation, thereby can't realize the real-time broadcast of on-screen data at distal displayed device place.
Summary of the invention
Technical problem to be solved by this invention provides a kind of screen real-time migration method, transmission range in the time of can increasing the screen migration, but also can accelerate response time that the video and/or audio data are transmitted, thereby realize the real-time broadcast of on-screen data at distal displayed device place.
For solving the problems of the technologies described above, the invention provides a kind of screen real-time migration method, may further comprise the steps:
(1) pairing video image of screen and the voice data that needs are moved gathered;
(2) use the mode of handling frame by frame that vedio data is compressed;
(3) be the signal of telecommunication with the vedio data modulation conversion that obtains after voice data and the compression;
(4) voice data and the vedio data that will convert the signal of telecommunication to by power line is transferred to distal displayed equipment place;
(5) carry out demodulation at choosing end display device place to receiving the Voice ﹠ Video view data, convert to and can be the Voice ﹠ Video picture signal that this distal displayed equipment is play;
(6) vedio data of gained carries out decompress(ion) after distal displayed equipment place uses the mode handled frame by frame to demodulation;
(7) play at distal displayed equipment place.
The present invention is owing to adopted technique scheme, has such beneficial effect, promptly pass through the electrification line as the transmission medium of video and audio signal between local computer and distal displayed device, thereby overcome the restriction of screen transmission range, saved cost to a certain extent; The present invention also comes vision signal is compressed and decompress(ion) by the mode of handling frame by frame, thereby reduced delay that screen picture is handled, reduced the time that image is handled to greatest extent, increase the response time of signal transmission, and then realized the real-time broadcast of on-screen data on the distal displayed device; And need not to use buffer memory to come data are carried out buffer memory earlier, thereby can handle transmission at any time at any time to data, therefore further saved the time of transfer of data.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing and embodiment:
Fig. 1 is the signal transmission schematic diagram of an embodiment of the method for the invention.
Embodiment
As shown in Figure 1, the method for the invention may further comprise the steps:
At first, the collection pairing video image of screen and the voice data that need move;
Then,,, increase the response time of follow-up signal transmission, use the mode of handling frame by frame that vedio data is compressed in the present invention to reduce the time of image processing to greatest extent in order to make time of delay as much as possible little.In one embodiment, can use the algorithm of JPEG2000 to come compressed image.
The 3rd step was to be suitable for the signal of telecommunication that power line transmits with the vedio data modulation conversion that obtains after voice data and the compression.
Above-mentioned three steps are all located to realize at transmitting terminal (as individual PC etc.).
In the 4th step, will convert the voice data of the signal of telecommunication and vedio data to by power line and be transferred on other choosing end display devices that need show these on-screen datas, as other personal computers, television set etc.In the present invention, the electrification line realizes that the transmission of signal has the following advantages: the transmission range in the time of promptly can increasing the screen migration on the one hand; Can also avoid on the other hand using additional data wire, thereby also can save cost to a certain extent.
The 5th step, after elected end display device receives relevant Voice ﹠ Video view data, these data are carried out demodulation, can be the Voice ﹠ Video picture signal that this distal displayed equipment is play to convert to.
In the 6th step, the vedio data after using the mode handled frame by frame with demodulation carries out decompress(ion).In the present invention, why use the mode of handling frame by frame that vedio data is compressed and decompress(ion), can reduce delay on the one hand, thereby reduce the time of image processing to greatest extent; On the other hand since time of delay less make can need not in advance the data after the demodulation to be carried out buffer memory, thereby realized and can handle transmission at any time at any time data, so further saved the time of transfer of data.In one embodiment, also can use the algorithm of JPEG2000 to carry out decompress(ion).But in order to guarantee reliability of data transmission simultaneously, the quality of unlikely influence transmission back gained image behind the decompress(ion), can also be carried out verification to video and the voice data that is transmitted.
The the above-mentioned the 5th and the 6th step all realized at the receiving equipment place.After data decompression is finished, just can play in real time these on-screen datas that receive at this distal displayed equipment place.
Certainly, according to foregoing description of the present invention, one of ordinary skill in the art should know that distal displayed equipment also can pass back to corresponding on-screen data at the computer place of transmitting terminal by above-mentioned same method principle.
By the method for the invention, can be so that the computer application scene be from not only being confined to study or office department, and can extend to by the television set, thereby make the user more comfortable, and make the use crowd of computer more extensive.
Claims (4)
1, a kind of screen real-time migration method is characterized in that, may further comprise the steps:
(1) pairing video image of screen and the voice data that needs are moved gathered;
(2) use the mode of handling frame by frame that vedio data is compressed;
(3) be the signal of telecommunication with the vedio data modulation conversion that obtains after voice data and the compression;
(4) voice data and the vedio data that will convert the signal of telecommunication to by power line is transferred to distal displayed equipment place;
(5) carry out demodulation at distal displayed equipment place to receiving the Voice ﹠ Video view data, convert to and can be the Voice ﹠ Video picture signal that this distal displayed equipment is play;
(6) vedio data of gained carries out decompress(ion) after distal displayed equipment place uses the mode handled frame by frame to demodulation;
(7) play at distal displayed equipment place.
2, according to the described screen real-time migration method of claim 1, it is characterized in that, in described step (2), use the algorithm of JPEG 2000 to come compressed video image data.
3, according to the described screen real-time migration method of claim 1, it is characterized in that, in described step (6), use the algorithm of JPEG 2000 to come the vedio data after the demodulation is carried out decompress(ion).
4, according to the method for each described screen real-time migration in the claim 1 to 3, it is characterized in that, in described step (6), vedio data carried out decompress(ion) after, also need carry out verification to video and the voice data that is transmitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810043169A CN101534427A (en) | 2008-03-13 | 2008-03-13 | Screen real-time migration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810043169A CN101534427A (en) | 2008-03-13 | 2008-03-13 | Screen real-time migration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101534427A true CN101534427A (en) | 2009-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810043169A Pending CN101534427A (en) | 2008-03-13 | 2008-03-13 | Screen real-time migration method |
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| CN (1) | CN101534427A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103150132A (en) * | 2013-02-21 | 2013-06-12 | 海信集团有限公司 | Screen transmission method and electronic equipment |
| CN105847908A (en) * | 2016-04-08 | 2016-08-10 | 微鲸科技有限公司 | Split display system based on power line system and split display method |
-
2008
- 2008-03-13 CN CN200810043169A patent/CN101534427A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103150132A (en) * | 2013-02-21 | 2013-06-12 | 海信集团有限公司 | Screen transmission method and electronic equipment |
| CN103150132B (en) * | 2013-02-21 | 2016-01-13 | 海信集团有限公司 | A kind of biography screen method and electronic equipment |
| CN105847908A (en) * | 2016-04-08 | 2016-08-10 | 微鲸科技有限公司 | Split display system based on power line system and split display method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090916 |