Method and apparatus for checking compressed data errors

Details Method and apparatus for checking compressed data errors Method and apparatus for checking compressed data errors

1997-12-09

1999-09-14

Grant, William

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

714800, 714701, 369 32, 369 47, 369 50, 369 60, 364130, G11C 2900

Patent

active

059517107

ABSTRACT:
Double error correction is attempted on the data for which error detection is once performed on compressed data both in the error detecting circuit and in the error correcting circuit after it is read out in sectors from the target disc medium and the reliability of the data recorded on the disc medium is judged according to the pointer C2PO indicating that the error cannot be corrected even with the double correction processing, whereby a disc playback apparatus can be provided which is able to judge the state of data errors without executing the expanding processing of the compressed data.

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