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

A method for accelerating channel switching in a video multicast network system and a channel group identification method

A channel switching and network system technology, which is applied in the field of channel switching acceleration in the video multicast network system, can solve the problems of not being able to adapt to large-scale deployment, network traffic surge, resource consumption, etc., and achieve user experience improvement, smooth transition, and adaptability good sex effect

Inactive Publication Date: 2017-05-10
INST OF SOFTWARE - CHINESE ACAD OF SCI
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above methods often cannot meet the needs of large-scale deployment, or consume too many resources, or easily cause short-term surges or even congestion of network traffic

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
  • A method for accelerating channel switching in a video multicast network system and a channel group identification method
  • A method for accelerating channel switching in a video multicast network system and a channel group identification method
  • A method for accelerating channel switching in a video multicast network system and a channel group identification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In the community video transmission network that supports multicast, it includes conventional equipment such as video multicast server (that is, video program source server with disk array), intelligent switch, video playback terminal, and a dedicated server selected for channel acceleration. There are acceleration modules on the switches and terminals. For network topology, see figure 1 , figure 1 The middle edge switch is an intelligent switch directly connected to the video playback terminal, and the core switch is directly connected to the video multicast server. This terminal refers to the video playback terminal that needs to switch channels. The channel that the neighbor terminal is playing is the same as the channel number to be switched by this terminal, and it is relatively close to this terminal in terms of network topology connection.

[0029] When switching channels, the current GOP image frame data is likely to be incomplete. The acceleration module a...

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 relates to a channel switching accelerating method and a channel ethnic group marking method in a video multicast network system. The channel switching accelerating method includes the steps of frame interpolation, rebound, construction and transmission in advance. A user sends out a switching request, and a terminal informs a switch of joining in a corresponding multicast group; an accelerating module executes corresponding actions according to the position or the operation stage, where a current image frame is located, of a group of video pictures (GOP); in the front part of the GOP, overdue frames are supplemented to be complete; in the front middle of the GOP, only reference frames are recalled; in the rear middle of the GOP, new I frames are constructed; in the tail of the COP, transmission is performed in advance. In addition, keys on a terminal control panel are not increased, one certain key or a certain group of keys are defined to have different functions under different states, and the operation functions of channel ethnic group marking and scanning type automatic switching in groups are achieved. Channel switching of video multicast can be accelerated, the possibility of jamming of the backbone network is lowered, and instant large fluctuations of network flow are avoided.

Description

technical field [0001] The invention relates to network video transmission technology, in the video transmission environment of IP network, such as online live broadcast, network TV, video conferencing and other information service fields, and specifically relates to a method for accelerating channel switching in a video multicast network system. Background technique [0002] Multimedia services are increasing day by day in IP networks, and the efficient transmission of network video has gradually become a research hotspot. Zhang Hongke of Beijing Jiaotong University proposed a smart collaborative network, which can improve the utilization rate of network resources, reduce network energy consumption, and improve user experience. In the community broadband network, IP multicast technology effectively solves the problem of single-point transmission and multi-point reception, realizes point-to-multipoint efficient data transmission, can save network bandwidth, and reduce server...

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): H04N21/44H04N21/234H04N21/43H04N21/61H04N21/6405
Inventor 方贵明石志强乔元松程冬超王均
Owner INST OF SOFTWARE - CHINESE ACAD OF SCI
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