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DMB receiver and TS information bag error detection and expression method

An error detection and receiver technology, applied in the direction of image communication, TV, color TV parts, etc., can solve the problems of poor continuous reception quality and the inability to judge whether there is an error in the TS packet

Inactive Publication Date: 2009-03-18
LG ELECTRONIC (HUIZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of paid broadcasting, it is necessary to monitor the quality of the broadcast received by the user. Although it is possible to judge whether there is an error in the PES packet, if there is no CRC information, it cannot be judged whether there is an error in the TS packet, and the reception quality continues to be poor. broadcast problem

Method used

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  • DMB receiver and TS information bag error detection and expression method
  • DMB receiver and TS information bag error detection and expression method
  • DMB receiver and TS information bag error detection and expression method

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Embodiment Construction

[0027] Next, the embodiments of the DMB receiver and its TS packet error detection and representation method of the present invention will be described in detail with reference to the accompanying drawings.

[0028] Fig. 2 is a schematic diagram of the functional blocks of the FEC section including the error detection section in the DMB receiver of the present invention. FIG. 3 is a structure diagram of a TS packet header illustrating a method for detecting and displaying TS packet errors in the DMB receiver of the present invention.

[0029] Referring to Fig. 2 and Fig. 3, it can be seen that the FEC) functional block is composed of the following parts: bit de-interleaving (bit de-interleaving) part 31; Viterbi decoding part (viterbi decoding) 32; byte de-interleaving part ( byte de-interleaving) 33; RS decoding (Reed-Solomon decoding) section 34, wherein the FEC end includes an error detection section 35.

[0030] The above-mentioned bit decrossing unit 31 performs bit decr...

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Abstract

Characters of DMB receiver, error detection of TS information packet, and representation method are: based on broadcast specification of satellite DMB, the invention converts transferred DMB signal to digital signal, which is decoded again, and displayed on DMB receiver. The invention also includes following parts: at FEC end of DMB receiver, detecting whether there is error in decoded TS information packet; if yes, and then recoding the error at error detection part in head of TS information packet.

Description

technical field [0001] The present invention relates to a DMB receiver, in particular to a TS packet error detection and representation method in the DMB receiver. Background technique [0002] Because the radio broadcasting currently in use is an analog form, it was originally developed for receiving signals in a fixed place, so when receiving signals while walking or running a vehicle, the sound quality is very bad, so a high output is required and wide frequency bandwidth. [0003] In order to solve the above-mentioned problems, studies on the standardization and common use of digital audio broadcasting are being widely carried out all over the world. In Europe, where Eureka-147 is adopted as the digital audio broadcasting standard, DAB (Digital Audio Broadcasting: Digital Video Broadcasting) is used, DAR (Digital Audio Radio: Digital Audio Broadcasting) is used in the United States, and DRB (Digital Radio Broadcasting: Digital Radio Broadcasting) is used in Canada , Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/44
Inventor 地石万
Owner LG ELECTRONIC (HUIZHOU) CO LTD