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MCU cascade system and establishing and communication method for the same

A technology of cascade system and communication method, which is applied in the direction of two-way working system, video conferencing system, branch office to provide special service devices, etc. It can solve the problems of image quality damage, increase of video image delay, etc., and reduce multiple adaptations , low hardware resource requirements, and the effect of reducing data delay

Inactive Publication Date: 2009-01-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above process, the video code stream of terminal T21 has undergone three encoding and decoding processes, resulting in great damage to the image quality and increasing the delay of the video image

Method used

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  • MCU cascade system and establishing and communication method for the same
  • MCU cascade system and establishing and communication method for the same

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Embodiment Construction

[0021] The MCU cascading system of the present invention includes a first MCU, at least one second MCU, at least one first terminal connected to the first MCU, at least two second terminals of different types connected to the second MCU, managing the first The MCU, the second MCU, the resource management center of the first terminal and the second terminal. The first terminal and the second terminal are both video terminals or both are audio terminals. Different types of second terminals mean that the supported audio and video protocols are different, and even if the supported audio and video protocols are the same, the maximum supported bandwidth is also different. Different second terminal. Multiple cascading channels are established between the first MCU and the second MCU according to the type of the second terminal connected to the second MCU, and each cascading channel transmits the maximum bandwidth and audio and video protocol supported by a type of second terminal co...

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Abstract

The related MCU cascade system comprises: a first / second MCU connected with at least one first / second terminal, and a resource management center for all MCU and terminals, wherein arranging multiple cascade paths between two MCU with every to transmit code flow supported by the second terminal. This invention reduces request to hardware and improves voice image quality.

Description

technical field [0001] The present invention relates to the field of communication, in particular to an MCU (Multipoint Control Unit, multipoint control unit) cascade system and the creation and communication methods of the system. Background technique [0002] Video communication, especially multi-party video communication, is currently being widely used with the rapid development of broadband networks. Government departments, military, public security, enterprises and other departments are building or expanding existing video conferencing systems. In the process of expanding the original video conferencing system, the inheritance of existing resources needs to be considered; at the same time, with the development of technology, more and more video conferencing systems can support higher video resolution and higher video bandwidth And audio and video protocols with higher compression rates. Therefore, in the expansion process of the existing video conferencing system (suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/18H04N7/15H04M3/56
Inventor 魏小霞
Owner HUAWEI TECH CO LTD