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Method and apparatus for providing high-quality multimedia service in dmb system

A technology for multimedia broadcasting and multimedia services, applied in the directions of digital media broadcasting, broadcasting system types, high-definition television systems, etc., and can solve problems such as limitations in high-quality services

Inactive Publication Date: 2010-03-31
ELECTRONICS & TELECOMM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In DMB broadcasting, multimedia services are provided through a single stream, and thus there are limitations in providing high-quality services

Method used

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  • Method and apparatus for providing high-quality multimedia service in dmb system
  • Method and apparatus for providing high-quality multimedia service in dmb system
  • Method and apparatus for providing high-quality multimedia service in dmb system

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specific Embodiment approach

[0027] Preferred embodiments of the present invention will now be explained with reference to the accompanying drawings. The same reference numerals or symbols in the figures denote the same elements. Descriptions of well-known functions or constructions may be omitted to clarify the spirit of the present invention.

[0028] figure 1 is a block diagram illustrating the structure of a media processor of a conventional transmission unit in digital multimedia broadcasting (DMB).

[0029] A video encoder encodes an incoming image signal according to a video standard, and an audio encoder encodes an incoming audio signal.

[0030] An initial object descriptor (IOD) generator 110 generates IOD data based on the ISO / IEC 14496-1 standard. An Object Descriptor (OD) / BIFS (Binary Format for Scenes) generator 120 generates an OD / BIFS stream based on the ISO / IEC 14496-1 standard.

[0031] The SL packetizer 130 (SL-Synchronization Layer) generates SL packets as packets for synchronizati...

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Abstract

A transmission device and receiving device for providing high-quality multimedia services in a digital multimedia broadcasting (DMB) transmission system is provided. The transmission device separatesinput multimedia contents into a base layer elementary stream and an enhancement layer elementary stream, encodes the base layer elementary stream and the enhancement layer elementary stream, transforms the base layer elementary stream and the enhancement layer elementary stream into a base layer SL packet and an enhancement layer SL packet, transforms the base layer SL packet and the enhancementlayer SL packet into a base layer PES packet and an enhancement layer PES packet, and multiplexes the base layer PES packet and the enhancement layer PES packet according to a base layer elementary stream and an enhancement layer elementary stream and outputs a base layer TS packet and an enhancement layer TS packet.

Description

technical field [0001] The present invention relates to a media processing method and device for providing high-quality multimedia services, by using the method and device, functions for providing high-quality services are added to digital multimedia broadcasting, and backward compatibility with existing receivers can be maintained sex. [0002] This invention arose out of a research project supported by the Information Technology (IT) Research and Development (R&D) Program of the Ministry of Information and Communications (MIC) [2006-S-017-02, Development of High-Tech Terrestrial DMB Transmission]. Background technique [0003] In conventional digital multimedia broadcasting (DMB), multimedia services are multiplexed into a single transport stream and the multiplexed services are delivered. In DMB broadcasting, multimedia services are provided through a single stream, and thus there is a limit in providing high-quality services. Description of drawings [0004] figure ...

Claims

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Application Information

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IPC IPC(8): H04N7/015H04N7/24H04N7/52
CPCH04N21/4385H04N21/23614H04N21/2389H04N21/44012H04N21/4307H04N21/4348H04N21/64792H04N21/435H04H2201/11H04N21/4341H04N21/23412H04N21/2368H04N21/242H04N21/234327H04N21/2362H04N21/234318H04N21/235H04N21/4345H04N21/2383H04N21/2662H04N21/44029H04N21/43074H04N21/236H04N21/434
Inventor 金光勇李光淳尹正日金永受杨圭台裵在辉崔序米金柱延徐在贤林钟秀李寿寅
Owner ELECTRONICS & TELECOMM RES INST
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