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

Bandwidth control method and system in video conferencing system

A video conferencing system and bandwidth control technology, applied in video conferencing systems, two-way working systems, etc., can solve problems such as system stability, increased bandwidth control difficulty, etc., and achieve the effect of good video picture quality.

Active Publication Date: 2016-05-18
GUANGDONG VTRON TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But behind more flexibility, there is a problem related to the stability of the entire system-the difficulty of bandwidth control increases

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
  • Bandwidth control method and system in video conferencing system
  • Bandwidth control method and system in video conferencing system
  • Bandwidth control method and system in video conferencing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] To achieve a stable video conferencing effect, we need a complete set of bandwidth control strategies and user interaction design. If it is necessary for the video conferencing system to operate stably under a controllable bandwidth range, then we must make the total bandwidth used by us to transmit video, audio, and conference signaling between the terminal and the server not exceed the network environment where the system is deployed. bandwidth value. For example, if a user wishes to hold a conference with a bandwidth of 4Mbps, we believe that the bandwidth of all participating terminals reaching the MCU is at least 4Mbps, and our goal of bandwidth control is: video bandwidth + audio bandwidth + conference signaling bandwidth <= 4Mbps.

[0027] The bandwidth occupied by audio and conference signaling is basi...

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 present invention provides a bandwidth control method and system in a video conferencing system. The method includes the following steps: reading a bandwidth capability table; The table corresponding to the bandwidth and the video encoder formed after the section; judge whether the multi-screen window layout in the current video conference is an equivalence video layout; if so, select the same video encoder for each terminal; the selection process is as follows: according to the video The total bandwidth and the number of current sub-windows calculate the reference code rate, and select the video encoder whose code rate in the corresponding bandwidth segment is the closest to the reference code rate and less than or equal to the reference code rate in the bandwidth capability table. The method and system of the present invention realize the bandwidth control of terminals corresponding to each sub-window, so that the video conferencing system can run stably in a controllable bandwidth range, and the picture quality encoded by the scheme of the present invention is better.

Description

technical field [0001] The invention relates to a video conferencing system, in particular to a bandwidth control method in the video conferencing system and a bandwidth control system in the video conferencing system. Background technique [0002] In the video conferencing system, the function of allowing the terminal to watch the multi-picture layout at the same time generally relies on the MCU (MultipointControlUnit, multi-point control unit) to decode the input streams of different pictures from different customers, and then synthesize a multi-picture layout according to a certain multi-picture layout. It is realized by re-encoding the pictures of multiple terminal video images to obtain an output code stream. The architecture of the video conferencing system can be found in figure 1 shown. [0003] In a conventional video conferencing system, the flow diagram of the MCU processing multiple streams can be found in figure 2 shown. Taking 4 code streams as an example,...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/15
Inventor 刘明宇
Owner GUANGDONG VTRON TECH CO LTD
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