Coding device and coding method

A decoding device and decoding technology are applied in the field of decoding devices and decoding, and can solve the problems of false synchronization and synchronization of synchronization code error detection, pseudo synchronization of synchronization code and synchronization deviation, deviation and the like
CN1622505AInactive Publication Date: 2005-06-01KK TOSHIBA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
KK TOSHIBA
Publication Date
2005-06-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

A decoding device and decoding method for solving the problem of false synchronization or synchronization deviation caused by misdetection of synchronization codes in an encoding device using error correction / detection coding and a synchronization recovery method using synchronization codes in combination . It has an encoding unit 212 that encodes the input multiplexed code string 201 into an error correction / detection code composed of information bits and check bits, and inserts a synchronization code into the code string 201 into a plurality of predetermined periodic synchronization codes. A code string combining unit that inserts one of the positions, arranges the information bit at any position in the code string, and arranges the check bit at a position other than the insertion position of the synchronization code in the code string 201 to form the output code string 205 213.
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Description

[0001] This application is a divisional application of a Chinese invention patent application with an application date of March 18, 1997, an application number of 97193909.8, and an invention title of "encoding device and decoding device". technical field

[0002] The present invention relates to a system for transmitting / storing information through a medium with a high bit error rate such as a wireless transmission line, performing error correction / detection coding on a compressed code string obtained by high-efficiency compression coding, and encoding / decoding for transmission / storage code device. Background technique

[0003] For example, as in wireless television (TV) telephones, portable information terminals, and digital TV broadcasting systems, it is necessary to efficiently compress and encode and transmit through wireless transmission lines to reduce image and sound information to as little information as possible. In the system, due to the high bit error rate of th...

Claims

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