Correction system and method of linear block code

Abstract

It is a kind of correcting system. When a predefined correcting part of original data corrects an error correcting data, it uses for correcting a linear block code of original data that generated by a data-encoding program. This correcting system consists of a encoding module and a correcting module. The encoding module can encode the error correcting data and generate a corresponding error code according to the data-encoding program. The correcting module can store this error code, and execute the correcting operation of the error code and the linear section code then generate a replacing code to replace the linear section code. So when the optical recording system finishes the data encoding, if the data is changed, the repeated and complicated data encoding program is not needed, it can directly add the replacing code and obtain the updated linear block code.

Description

field of invention [0001] The invention relates to a linear block code correction system and method; in particular, it relates to a linear block code correction system and method applied to an optical recording system. Background technique [0002] When an optical recording system writes or reads data, it needs to encode or decode data first. Taking the Digital Versatile Disc (DVD) system as an example, when the DVD system encodes and writes data, it uses an Error Correction Code block (ECC block) as a unit to sequentially write a correction code block. The data in the wrong block is written to the DVD disc. [0003] The digital data to be written into the DVD is first decomposed into a plurality of 2048-bit main data, and temporarily stored in the buffer memory of the optical recording system. In the DVD system, each main data has a 4-bit identification data representing its location and number and a 6-bit copyright management information about copyright issues. The firs...

AI Technical Summary

Problems solved by technology

[0009] However, when the technology disclosed in the No. 6357030 patent is corrected, it must be recalculated based on the error bits to obtain the correction code used for correction.

It is impossible to directly and quickly fill in the correction code, which is not very helpful for saving hardware resources

Moreover, the error correction code inside the error correction block has not been corrected, so the error correction code must still be recalculated

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