Apparatus and method for stream-oriented multimedia data transmission

A technology of multimedia data and transmission devices, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as increasing server load and unable to guarantee stable services.

Inactive Publication Date: 2004-04-21
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the method, whenever the bandwidth of the network changes, bit rate conversion should be performed by the above-mentioned processing, thus causing an increase in the load of the server
Also, unless real-time coding is done satisfactorily, stable service cannot be guaranteed

Method used

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  • Apparatus and method for stream-oriented multimedia data transmission
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Embodiment Construction

[0032] see figure 1 , the multimedia streaming server 100 according to the present invention includes a data storage unit 101, a metadata syntax analysis unit 110, a quality of service (hereinafter referred to as "QoS") processing unit 130, a message receiving unit 160, a buffer 170, a packet generating unit 180 and packet sending unit 190.

[0033] The data storage unit 101 stores compressed multimedia data to be provided for a service and metadata related to the multimedia data. Here, multimedia data is stored in the form of any one of audio data, moving image data such as video data, still image data, text data, and graphic data. Multimedia data is formed using a bit stream having any one of a spatial scalability function, a quality scalability function, a temporal scalability function, and a granular scalability (FGS) function. The metadata parsing unit 110 parses the metadata and outputs the parsing result in the form of a descriptor. The QoS processing unit 130 perfor...

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Abstract

A multi-media streaming server has a data storage unit (101) providing multi-media data available for a service, a meta-data analysis unit (110) for analyzing meta-data and providing the analysis result as a descriptor, a message receiving unit (160) for receiving network-bandwidth information from client, a service quality (QoS) processing unit (130) , a buffer-store (170) a packet generating unit (180) and a packet transmission unit (190). Independent claims are included for (A) a multi-media streaming client (B) a multi-media streaming device (C) a multi-media streaming method (D) a streaming method of a server (E) method for measuring network bandwidth of client.

Description

technical field [0001] The present invention relates to a transmission of multimedia data, in particular to a multimedia streaming device and method, through which the multimedia data is transmitted adaptively according to network conditions. Background technique [0002] Streaming is a technique by which the data to be transferred is processed so that the data transfer occurs continuously and continuously. Streaming technology has become more and more important with the development of the Internet. This is because most users do not have an Internet connection fast enough to download large multimedia files quickly. If streaming technology is used, the data can be provided by the client browser or plug-in even while the full transfer of the file is not complete. [0003] However, in a streaming environment, the conditions under which the network operates are not always stable. Generally, even if the multimedia streaming service corresponds to the initial network bandwidth,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L47/2416H04L47/43H04L49/901H04N7/12H04N7/173H04N21/24H04N21/6373
CPCH04L29/06523H04L47/24H04L65/607H04L65/80H04L29/0651H04L29/06027H04L65/70H04N7/12H04L65/1101
Inventor 赵大星金美英金尚煜李相祚
Owner SAMSUNG ELECTRONICS CO LTD
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