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Multiplexing device and multiplexing method

A technology of multiplexing devices and multiplexing sub-frames, which is applied in the direction of TV, electrical components, pulse modulation TV signal transmission, etc., to achieve the effect of convenient customization, improving ease of use, and reducing the risk of bit errors and failures

Inactive Publication Date: 2010-06-23
ZTE CORP
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Problems solved by technology

[0013] The technical problem to be solved by the present invention is to provide a multiplexing device and a multiplexing method to solve the problem that multiple input code streams in the existing mobile TV standard need to use multiple multiplexing devices for combined application, and realize a single multiplexing device Unified multiplexing of multiple types of input streams

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  • Multiplexing device and multiplexing method

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] When multiplexing is implemented in the current China Mobile Multimedia (CMMB) standard, when there are multiple input code streams, it is necessary to use multiple multiplexers and re-multiplexers to combine to realize the final multiplexed frame output. The present invention proposes A hybrid multiplexing multiplexing device and a corresponding multiplexing method are proposed. For multiple input streams (such as RTP streams and PMS streams), firstly, adaptively identify the type of input streams and cache them by category processing, and then obtain corresponding multiplexed subframes for different types of code streams, according to the configuration information of the console, allocate the multiplexed subframes to the specified multiplexed frame for mul...

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Abstract

The invention discloses a multiplexing device and a multiplexing method. The multiplexing device comprises an adaptive input identification module, a service building module, a service management module and a multiframe building module, wherein the adaptive input identification module is used for adaptively identifying and caching the types of input code streams; the service building module is used for extracting multiplexing subframes in input multiframes from the cached input code streams according to the types of the input code streams, or building input audio-video data information into the multiplexing subframes; the service management module is used for performing service management distribution on the multiplexing subframes according to service management configuration information, distributing the multiplexing subframes to corresponding multiframes and storing the multiplexing subframes into a specified cache; and the multiframe building module is used for acquiring the multiplexing subframes from the specified cache, building the multiframes according to multiplexing configuration information, and converting the generated multiframes into multiplexing code streams to perform outputting. The multiplexing device and the multiplexing method can realize that different types of the input code streams use the same device to perform multiplexing treatment, save the station building and maintenance costs, improve the easy-to-use performance of front-end equipment, and reduce error codes and fault risks caused by the combined use of a plurality of multiplexers.

Description

technical field [0001] The invention relates to the technical field of mobile multimedia broadcasting, in particular to a multiplexing device and a multiplexing method. Background technique [0002] At present, there are multiple industry standards for mobile multimedia broadcasting (mobile phone TV) in the world. China Mobile Multimedia Broadcasting (CMMB) is a mobile phone TV industry standard independently developed by China, and has received extensive attention. The standard consists of several parts, among them: [0003] Part 2 "Multiplexing" defines the multiplexing subframe structure of video, audio, data and control information in the mobile multimedia broadcasting system and the structure of the multiplexing frame composed of multiple multiplexing subframes; [0004] "Multiplexing Implementation Guide" is an application guide to guide the implementation of multiplexing, which defines the specification for the multiplexing device to output PMS (Packaged Multiplexing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/52H04N7/64H04N19/89
CPCH04N21/236H04N7/52
Inventor 夏智海林彬陈志兵谢立强
Owner ZTE CORP
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