Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Video conference realization method and multi-point control unit

A multi-point control unit, video conferencing technology, applied in video conferencing systems, electrical components, two-way working systems, etc., can solve problems such as packet loss, intermittent sound, smear, etc., to save coding hardware resources and reduce total , to avoid the effect of deceleration

Active Publication Date: 2016-01-06
三亚中兴软件有限责任公司
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If the network from the MCU to the terminal is congested, the voice and video Real-Time Transport Protocol (RTP, Real-Time Transport Protocol) packets sent by the MCU to the terminal will be lost. Intermittent sound, image mosaic, smear, etc., greatly affect the conference effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Video conference realization method and multi-point control unit
  • Video conference realization method and multi-point control unit
  • Video conference realization method and multi-point control unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] When the network quality of the terminal is poor, the RTP packet sent by the MCU to the terminal will be lost, which affects the communication quality of the video conference.

[0042] For this situation, a solution is to allocate independent encoding hardware resources for each terminal, enable forward error correction code (FEC, ForwardErrorCorrection) for the terminal, and reduce the speed of the actual media so that the video played at the terminal The picture / sound of the venue meets the user's requirements. This solution needs to allocate independent encoding hardware resources for each terminal. When the number of terminals is large, the encoding hardware resources of the MCU may not be able to meet the requirements.

[0043] Another solution is to select the lowest rate in the rate reduction request according to the terminal type, and control the rate increase or decrease of terminals of the same type. This solution does not distinguish the terminal network qua...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a video conference realization method and a multi-point control unit. The realization method comprises steps that, network quality parameters of each terminal are acquired through MCU statistics; the type of each terminal in a video conference is determined by the MCU according to a video format used by the terminal; the network quality parameters of all terminals in one type are ordered by the MCU according to size order to acquire the ordered parameter sequence, the parameter sequence is segmented to acquire sequence fragments in pre-determined quantity; one same coding hardware resource used for carrying out forward error correcting code (FEC) coding processing is distributed by the MCU to the terminal corresponding to each parameter in one same sequence fragment, FEC coding processing for each terminal in the sequence fragment is started according to the worst network quality parameter in the sequence fragments, and code streams after coding are acquired and are sent to the corresponding terminals. Through the method, differentiated FEC coding processing can be carried out on the limited coding resource MCU according to different network qualities of the terminals.

Description

technical field [0001] The invention belongs to the technical field of video conferencing, and in particular relates to a video conferencing implementation method and a multipoint control unit (MCU, MultipointControlUnit). [0002] The invention mainly relates to a method for realizing automatic speed-up and down-speeding with good picture quality on an IP network on a limited coding hardware resource in a video conference system. Background technique [0003] The IP network-based video conferencing system, because the IP network is unreliable and has the characteristic of best effort, when the network of individual conference terminals (hereinafter referred to as terminals) participating in the conference is congested, data packets will be lost, network Jitter, large delay, etc. [0004] If the network from the MCU to the terminal is congested, the voice and video Real-Time Transport Protocol (RTP, Real-Time Transport Protocol) packets sent by the MCU to the terminal will ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04N7/15H04L1/00
Inventor 肖银龙刘准时苗军
Owner 三亚中兴软件有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com