Screen real-time migration method

A technology of real-time migration and screen, which is applied in the direction of TV, color TV parts, color TV, etc. It can solve the problems of inability to realize real-time playback of screen data, inability to perform long-distance transmission, slow data response time, etc., to overcome The limitation of screen transmission distance, the effect of real-time playback and increased response time

Inactive Publication Date: 2009-09-16
盛大互动娱乐(上海)有限公司
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AI Technical Summary

Problems solved by technology

[0002] At present, when it is necessary to transmit the video and audio on a computer to other devices (such as televisions, etc.) distance transmission
[0003] In addition, in the prior art, due to the inability to realize fast signal processing, the data response time during data transmission is too slow, so when the transmitted video and / or audio signals are transmitted to other devices through data lines, Other devices also need to buffer the received signal first, and then perform subsequent processing such as decompression and demodulation, so that the real-time playback of screen data on the remote display cannot be realized

Method used

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  • Screen real-time migration method

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Embodiment Construction

[0016] Such as figure 1 Shown, method of the present invention comprises the following steps:

[0017] First, collect the video image and audio data corresponding to the screen that needs to be migrated;

[0018] Then, in order to make the delay time as small as possible, reduce the time of image processing to the greatest extent, and increase the response time of subsequent signal transmission, the video image data is compressed by frame-by-frame processing in the present invention. In one embodiment, the JPEG2000 algorithm can be used to compress the image.

[0019] In the third step, the audio data and the compressed video image data are modulated and converted into electrical signals suitable for power line transmission.

[0020] The above three steps are all implemented at the sending end (such as personal PC, etc.).

[0021] The fourth step is to transmit the audio data and video image data converted into electrical signals to other terminal-selected display devices t...

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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 [0001] The invention relates to a screen transfer method, in particular to a screen real-time transfer method. Background technique [0002] At present, when it is necessary to transmit the video and audio on a computer to other devices (such as televisions, etc.) distance transmission. [0003] In addition, in the prior art, due to the inability to realize fast signal processing, the data response time during data transmission is too slow, so when the transmitted video and / or audio signals are transmitted to other devices through data lines, Other devices also need to buffer the received signal first, and then perform subsequent processing such as decompression and demodulation, so that real-time playback of screen data on the remote display cannot be realized. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a real-time screen migration method, which can increase the transmission distance when ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04N5/44H04N5/00
Inventor 安利群严正华赵海萍姚延平
Owner 盛大互动娱乐(上海)有限公司
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