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Multimedia bridge for real-time transmission of multi-channel video

A real-time transmission and multimedia technology, applied in the direction of pulse modulation TV signal transmission, transmission system, TV, etc., can solve the problems of difficult to realize multi-channel video real-time transmission, increase product complexity, and low DMA efficiency, so as to reduce electromagnetic radiation, The effect of concise product and simple product design

Inactive Publication Date: 2009-11-25
JINAN JOVISION TECH CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the video processing industry, SoC chips or DSP are mostly used, and the cost is high
DMA efficiency is low, it is difficult to realize multi-channel video real-time transmission
Expansion of more channels requires an additional PCI bridge chip, increasing product complexity and failure rate

Method used

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  • Multimedia bridge for real-time transmission of multi-channel video

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] figure 1 Among them, the input end of the multimedia bridge of the present invention is connected with one group of video decoders 1 to receive digital video, and its output end is then connected with the system memory 9. The multimedia bridge includes multiple groups of video processing units arranged in arrays, the number of video units Same as the video decoder 1, each video decoder 1 is connected with a corresponding video processing unit; each video processing unit includes a scaler 2, the scaler 2 is connected with the buffer device, and the buffer device is connected with the DMA controller 6, Simultaneously, the scalers 2 of each video processing unit, the cache devices and the DMA controllers 6 are connected to each other, and each scaler 2 and the cache devices are connected to the parameter setting module 3, and each DMA controller 6 i...

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Abstract

The invention discloses a multimedia bridge for real-time transmission of multi-channel video. The multimedia bridge has the advantages of simple structure, low cost, high signal transmission efficiency, reliable performance, and the like. The multimedia bridge is structurally characterized in that an input end of the multimedia bridge is connected with a group of video decoders to receive digital video, an output end of the multimedia bridge is connected with a system memory, the multimedia bridge comprises a plurality of groups of video processing units which are arranged according to an array, the number of the video units is the same as that of the video decoders, and each video decoder is connected with one corresponding video processing unit; each video processing unit comprises a scaling device, the scaling device is connected with a cache device, the cache device is connected with a DMA controller, simultaneously the scaling devices of the video processing units, the cache devices and the DMA controllers are connected respectively, simultaneously each scaling device and each cache device are connected with a parameter setting module, and each DMA controller is connected with an arbiter; and each video decoder is also connected with a corresponding controller.

Description

technical field [0001] The invention relates to a multimedia bridge for real-time transmission of multi-channel video. Background technique [0002] At present, in the video processing industry, SoC chips or DSP are mostly used, and the cost is high. The DMA efficiency is low, and it is difficult to realize the real-time transmission of multi-channel video. The expansion of more channels needs to add an additional PCI bridge chip, which increases product complexity and failure rate. Contents of the invention [0003] The object of the present invention is to solve the above problems and provide a multi-channel video real-time transmission multimedia bridge with the advantages of simple structure, low cost, high signal transmission efficiency and reliable performance. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A multimedia bridge for multi-channel video real-time transmission, its input end is connected ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04N7/26H04L29/00
Inventor 李俊峰
Owner JINAN JOVISION TECH CO LTD
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