Apparatus and method for digital multimedia broadcasting service

A multimedia broadcasting and digital technology, applied in the direction of broadcasting circuit devices, broadcasting information features, digital transmission systems, etc., can solve the problems of unsupported transmission rate and inability to provide high-quality services, and achieve high transmission efficiency and high transmission efficiency services Effect

Inactive Publication Date: 2012-02-08
ELECTRONICS & TELECOMM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Therefore, although the multimedia source is coded to have high quality, such prior art cannot provide high quality service because the corresponding transfer rate is not supported

Method used

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  • Apparatus and method for digital multimedia broadcasting service
  • Apparatus and method for digital multimedia broadcasting service
  • Apparatus and method for digital multimedia broadcasting service

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Embodiment Construction

[0055] Advantages, features and aspects of the present invention will become apparent from the ensuing description of embodiments set forth hereinafter with reference to the accompanying drawings. Therefore, those skilled in the technical field of the present invention can easily implement the technical idea and scope of the present invention. Moreover, all conditional terms and examples in the specification are basically for the purpose of disclosing the idea of ​​the present invention. As such, the invention is not limited thereto.

[0056] Moreover, all detailed descriptions of specific embodiments, as well as principles, aspects and embodiments of the invention, must be understood as that detailed description includes structural and functional equivalents thereof. Such structural and functional equivalents must be understood as known equivalents, equivalents to be developed in the future, and all elements invented to perform the same function regardless of their structure...

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Abstract

An apparatus and method for digital multimedia broadcasting (DMB) services are provided. The DMB transmitter includes: a base layer transport processor for encoding the base layer stream; an enhancement layer transport processor for encoding the enhancement layer stream; and a hierarchical transmitter for transmitting the process from the base layer by Gray-based coding The base layer stream output from the processor and the enhancement layer stream output from the enhancement layer transmission processor are assigned predetermined bit values ​​and hierarchical symbol mapping is performed to transmit the base layer stream and the enhancement layer stream.

Description

technical field [0001] The present invention relates to an apparatus and method for digital multimedia broadcasting (DMB) services; and, more particularly, to a method for providing DMB services with high quality and high transmission efficiency while maintaining backward compatibility with typical DMB systems equipment and methods. Background technique [0002] figure 1 A Digital Multimedia Broadcasting (DMB) transmitter according to the prior art is illustrated. [0003] refer to figure 1 , the DMB transmitter according to the prior art includes an MPEG-4 video encoder 101 and an MPEG-4 audio encoder 103 for encoding multimedia sources, an MPEG-4 audio encoder 103 for obiactivating and synchronizing media streams. 4 system encoder 105, MPEG-2 transport stream (TS) multiplexer 107 for multiplexing media streams, Reed-Solomon (RS: Reed-Solomon) for additional error control coding ) encoder 109, a convolutional interleaver 111 for removing the time correlation of adjacent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/12H04N7/24
CPCH04N21/2383H04L2001/0093H04H20/95H03M13/2732H04N21/64792H03M13/152H04N21/4382H04N21/2368H03M13/2957H04H20/28H03M13/1515H04H20/44H03M13/23H04N21/2362H04H40/18H03M13/6368H04L27/183H04N21/2662H03M13/1102H04L27/3488H04N21/63H04N19/30
Inventor 金柱延裵在辉朴召罗林炯秀金良洙金永受崔序米徐在贤金兴默林钟秀李寿寅安致得严洛雄
Owner ELECTRONICS & TELECOMM RES INST
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