Broadband multimedia service system with dynamic bandwidth configuration and rate control

A multimedia service and rate control technology, applied in transmission systems, digital transmission systems, store-and-forward switching systems, etc., can solve the problems of difficult coordination, waste of resources, excess bandwidth, etc., and achieve the effect of low cost and less computing resources

Inactive Publication Date: 2003-08-06
GUANGDONG VIMICRO
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AI Technical Summary

Problems solved by technology

[0010] The problem with this buffer-based rate control method is that image quality instability and response delays will appear as bandwidth changes
Slow response makes it difficult to coordinate real-time changes in terminal requirements in multimedia service systems
[0011] On the other hand, in the case of fixed bandwidth, when the data content is less than constant, there will be excess bandwidth for a specific terminal, but these excess bandwidth cannot be used to meet other needs due to the large amount of information. The demand for higher bandwidth terminals also causes some waste of resources

Method used

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  • Broadband multimedia service system with dynamic bandwidth configuration and rate control
  • Broadband multimedia service system with dynamic bandwidth configuration and rate control
  • Broadband multimedia service system with dynamic bandwidth configuration and rate control

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Embodiment Construction

[0027] figure 1 Shows a complete end-to-end system that provides services in multimedia delivery, such as multimedia indexing and random retrieval in broadband video.

[0028] A powerful central server 10 can provide the entire multimedia service system operating on the broadband main chain network 15 . The client multimedia terminal 20 can be connected to the broadband backbone network in different ways. As shown in the figure, the customer multimedia terminal function can be directly connected to the broadband main chain network through the Ethernet 30, or the customer multimedia terminal function can be connected to the broadband main chain network through the ADSL router 40 and the telephone line, or the customer multimedia terminal function can pass through the IDSN modulator 50 and telephone lines are connected to the broadband main chain network. A client multimedia terminal can be in multiple formats. For example, a client multimedia terminal may have a camera conne...

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Abstract

A broadband multimedia service system especially relates a baoadband video service system with dynamic bandwidth configuration and rate control function made up of abroad frequency primary link network, a central server and one or many customer multimedia terminals with at least one internal Motion-JPEG chip. The central server observes multimedia interaction between terminal and multimedia in between and informs the terminal all the terminal network connection speed, network jam and dynamic configuration of bandwidth for each terminal which compersses adjusted diagrams to realiz corresponding bit rate to the matched bandwidth.

Description

technical field [0001] The invention relates to a broadband multimedia service system, in particular to a broadband video service system with dynamic bandwidth configuration and rate control functions. Background technique [0002] Electronic information can be transmitted between different locations through data networks. The advantage of a broadband network over other networks is that it can transmit a relatively large amount of data per unit of time. [0003] Traditional systems use a fixed bandwidth provisioning approach. Specifically, when a new terminal is connected to the network, the central server allocates a bandwidth according to the new terminal's request and the actual bandwidth available now. Typically, once the bandwidth is determined, the central server will not detect terminal-to-terminal multimedia interactions (eg, video conferencing), terminal connection speeds (eg, ISDN, ADSL, T1, etc.) and network congestion. In this case, network congestion is likel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/00H04L12/28H04L12/801H04L12/911
Inventor 金兆玮俞青薛天雄张辉
Owner GUANGDONG VIMICRO
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