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Method and apparatus for processing transmission errors in dmb systems

A technology of transmission error and processing method, which is applied in the field of transmission error detection and processing, and can solve problems such as failure of the normal program of the receiver and problems during data transmission.

Inactive Publication Date: 2005-12-21
SAMSUNG ELECTRONICS CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, even when an error occurring during transmission is detected by decoding each type of PES packet, since a PES packet including an error is decoded, a receiver malfunctions due to a heavy load imposed on the receiver or non-execution of a normal procedure
[0008] Also, when sending MPEG-4 data in the MPEG-2 data format, problems may occur during data transfer between the part in the hardware that detects errors and the error handler that receives and processes detected errors

Method used

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  • Method and apparatus for processing transmission errors in dmb systems
  • Method and apparatus for processing transmission errors in dmb systems
  • Method and apparatus for processing transmission errors in dmb systems

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Embodiment Construction

[0026] figure 1 is a schematic diagram showing the structure of a DMB (Digital Multimedia Broadcasting) system.

[0027] The stream received from the Eureka-147 system 110 is an MPEG-2 TS (Transport Stream) on which outer encoding is performed. MPEG-2TS includes PES (Packetized Elementary Stream) packets generated by packetizing MPEG-4 data converted from audio data, video data, and additional data, respectively. Reed-Solomon (RS) decoding is performed on the received MPEG-2 transport stream by the outer decoder 120 . The TS demultiplexer 130 demultiplexes the MPEG-2 transport stream output after RS ​​decoding to generate audio PES, video PES, and additional PES. The SL (Sync Layer) depacketizer 140 removes the SL header from the PES to generate MPEG-4 Video ES (Elementary Stream), MPEG-4 Audio ES, and MPEG-4 Additional ES. Examples of MPEG-4 additional data are MPEG-4OD / BIFS (Binary Format for Object Descriptor / Scene), and MPEG-4IOD (Initial Object Descriptor). Each data ...

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Abstract

Methods and apparatus are provided for detecting and handling transmission errors of various types of data sent in MPEG-2 transport streams. The transmission error handling method includes, after detecting transmission error information from a received MPEG-2 transport stream (TS) including transmission error information and demultiplexing the MPEG-2 TS into a plurality of PESs, performing packet processing on individual PESs. an elementary code stream) to detect an error; record individual PES data in a memory and add a flag indicating occurrence of an error to an end portion of the individual PES data, and thereafter record the individual PES data; and generate an interrupt based on error detection.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2004-0045855 filed with the Korean Intellectual Property Office on Jun. 19, 2004, which is hereby incorporated by reference. technical field [0002] The present invention relates to the detection and processing of transmission errors in digital multimedia broadcasting systems, more specifically, to a device and method for detecting and processing transmission errors in various types of data sent with MPEG-2 transport streams. Background technique [0003] Digital Multimedia Broadcasting (DMB) receivers are next-generation digital broadcasting receivers capable of receiving not only audio services that provide high-quality sound such as CD (Compact Disc) and high-quality clear video, but also receive services such as traffic Or a variety of additional data services for stock information services. The DMB system encodes various types of data such as v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/00G11B20/00G11B20/18H03M13/15H04L1/00H04N7/01H04N7/015H04N7/66H04N19/89
CPCG11B20/00G11B20/18H04H20/12H04L1/0057H04L1/0065H04N21/234318H04N21/4385H04N21/44209H04N19/89H04N7/00
Inventor 柳佳铉全钟求朴正熏
Owner SAMSUNG ELECTRONICS CO LTD