Method and terminal for realizing video conference cascade

A video conferencing and conference technology, which is applied in the direction of video conferencing system, TV, pulse modulation TV signal transmission, etc. It can solve the problems of poor signal quality, complicated wiring, and many connecting lines.

Active Publication Date: 2012-04-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 1) Due to protocol inconsistency, cascading between MCUs cannot be established, for example: one MCU supports ITU-T H.323, and the other MCU supports SIP;
[0013] 2) The networks between the two MCUs are disconnected;
[0014] 3) Interoperability of MCUs from different manufacturers is unreliable
[0015] However, the second solution has obvious disadvantages. Specifically, since the two terminals are connected by an analog signal, the signal will be attenuated after analog-to-digital or digital-to-analog conversion again, which will cause signal quality to deteriorate
In addition, there are many connecting wires between the two terminals, the wiring is complicated, and it is difficult for daily inspection and maintenance
In addition, because the two terminals are independent of each other, they cannot be linked to control

Method used

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  • Method and terminal for realizing video conference cascade
  • Method and terminal for realizing video conference cascade
  • Method and terminal for realizing video conference cascade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0211] This embodiment realizes the video conferencing cascade terminal, such as Figure 4 As shown, audio input module, audio encoding module, video input module, video encoding module, network interface module, data multiplexing / demultiplexing module, audio decoding module, video decoding module, audio output module, video output module, signaling processing module, and control and management module; wherein,

[0212] The audio input module is used to digitally collect and process the input audio signal;

[0213] Here, the audio input module supports more than one interface of external devices, for example: supports the input of a microphone, a mixer, and the like.

[0214] The audio encoding module is used to encode the audio data collected and processed digitally and other audio data that needs to be sent;

[0215] Here, in order to reduce the network transmission bandwidth, the terminal generally compresses and encodes the audio and video data. The encoded data is sent...

Embodiment 2

[0245] Figure 11 A schematic diagram of the terminal structure for implementing video conferencing cascading in Embodiment 2, as shown in Figure 11 As shown, the difference between this embodiment and Embodiment 1 is that this embodiment consists of a pair of independent equipment units with similar functions, that is, it is composed of equipment unit 1 and equipment unit 2, and each equipment unit has complete terminal features. In other words, each device unit has the functions of the terminal in Embodiment 1, and each device unit is responsible for accessing a conference. Specifically, equipment unit 1 is responsible for accessing the first conference, and equipment unit 2 is responsible for accessing the second conference. There is mutual connection between the two equipment units. The two equipment units cooperate with each other to realize the exchange of audio and video of the two conferences. data. In order to improve audio and video quality, an IP connection is us...

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Abstract

The invention discloses a method for realizing video conference cascade. The method comprises that during conference, the terminal receives audio and/or video data from a first conference, processes according to self-followed protocols and transmits the processed audio and/or video data to the network occupied by a second conference, and/or, the terminal receives audio and/or video data from the second conference, processes according to self-followed protocols and transmits the processed audio and/or video data to the network of the first conference. Simultaneously, the invention discloses a terminal for realizing video conference cascade. By adopting the method and the terminal of the invention, video conference cascade can be effectively realized on premise of ensuring audio and video quality.

Description

technical field [0001] The present invention relates to video conferencing technology, in particular to a method and terminal for realizing video conferencing cascading. Background technique [0002] Video conferencing system is a communication system that supports voice and video remote two-way transmission. Through the video conferencing system, users in different places can complete real-time two-way face-to-face visual communication. [0003] Standard organizations such as the International Telecommunication Union (ITU, International Telecommunication Unit), the Internet Engineering Task Force (IETF, Internet Engineering Task Force), and the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) are responsible for the formulation of video conferencing standards. ITU has formulated multiple video communication standards such as ITU-T H.320, ITU-T H.323, and ITU-T H.324. Among them, ITU-T H.320 is aimed at the multimedia communication application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/15H04N7/26H04N7/52
Inventor 吴永明
Owner ZTE CORP
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