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Method and system for reducing switching time of mobile phone television channel

A channel switching and TV channel technology, applied in the field of channel switching technology, can solve problems such as long switching time, inconvenient use, redundant decoding time, etc., and achieve the effect of reducing channel switching time and reducing channel switching time

Inactive Publication Date: 2011-03-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, when switching channels, the switching time of each module is too long, which makes it inconvenient for users to switch channels
Among them, the video decoding module needs to decode to the first key frame to play normally, and the non-key frame still needs to be decoded to determine the video frame type. The time for decoding this part of the non-key frame is actually redundant, which increases the video decoding time. Module channel switching time

Method used

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  • Method and system for reducing switching time of mobile phone television channel
  • Method and system for reducing switching time of mobile phone television channel
  • Method and system for reducing switching time of mobile phone television channel

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Embodiment Construction

[0037] The present invention proposes a transmission method and system for reducing the channel switching time of mobile phones. The basic concept is: add a video frame type mark for each video frame data, and send it to the terminal through the service channel; when the terminal switches channels, according to The mark of the video frame type is positioned to a key frame, and decoding starts from the key frame. By adopting this method, the key frame can be quickly positioned, and the channel switching time of the decoding module is shortened. For the mobile multimedia broadcasting that adopts the time slice burst mode to send multimedia services, the duration of each time slice is fixed, and wherein the video key frame may be located at any position of the time slice. After adopting the method of the present invention, no matter where the video key frame is located in the time slice, Keyframes can be located quickly. When the key frame of the video is at the end of the time s...

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Abstract

The invention provides a method for reducing switching time of cell phone television channels, which is: adding one video frame type mark for each video frame data, which is transmitted to a terminal through a service channel; the terminal locates to key frame according to the video frame type mark when switching channels, and starts decoding from the key frame. In order to realize the method, the invention also provides a system for reducing switching time of cell phone television channels, the video decoding module rapidly locates to key frame of video when switching channels, thereby effectively reduces channel switching time for video decoding module.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to the channel switching technology of a mobile multimedia broadcasting system. Background technique [0002] In recent years, mobile multimedia broadcasting technologies and standards have developed rapidly, for example, DVB-H (Digital Video Broadcast Handheld Receiver: Digital Video Broadcast Handheld) in Europe, MediaFLO (Media Forward Link Only) in the United States, And broadcast channel-based CMMB (Mobile Multimedia Broadcasting: China Mobile Multimedia Broadcasting) and other technologies and standards. The mobile multimedia broadcasting network provides many service contents for its end users, such as weather forecast, news, sports programs, variety shows, TV dramas, movies and other program contents. Users can choose the service programs of mobile multimedia broadcasting according to their own preferences. [0003] In the mobile multimedia broadcasting system, due to th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/434H04N21/4405
Inventor 彭铭张建强刘志强
Owner ZTE CORP