JPS6458127A - Code error correction method - Google Patents

Code error correction method

Info

Publication number
JPS6458127A
JPS6458127A JP62215805A JP21580587A JPS6458127A JP S6458127 A JPS6458127 A JP S6458127A JP 62215805 A JP62215805 A JP 62215805A JP 21580587 A JP21580587 A JP 21580587A JP S6458127 A JPS6458127 A JP S6458127A
Authority
JP
Japan
Prior art keywords
correction
error number
sets
error
syndromes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62215805A
Other languages
Japanese (ja)
Inventor
Kaoru Iwakuni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62215805A priority Critical patent/JPS6458127A/en
Publication of JPS6458127A publication Critical patent/JPS6458127A/en
Pending legal-status Critical Current

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  • Error Detection And Correction (AREA)

Abstract

PURPOSE:To reduce the entire processing time by executing the correction processing while supposing an error number smaller than the maximum correctable error number N, updating the supposed error number if the correction is unsuccessful so as to repeat the correction processing thereby executing the correction of blocks with a few error number in a short time. CONSTITUTION:2N-set (where N is a positive integer) of check symbols are added to an information symbol to constitute one block, and an error correction code having a capability of correcting N set of code errors at maximum per one block is used for the correction processing, then 2N sets of syndromes are calculated by a syndrome computing element 3 and 2ni sets (0<2ni<=2N) of syndromes are used among 2N sets of calculated syndromes, a microcomputer 4 uses a definite computing element 5 to execute code error correction with the assumption of the error number less than ni sets, whether or not the correction is successful is decided. If the correction is unsuccessful, the assumed error number ni is updated into ni+1, the correction is executed again and till the correction is successful or the assumed error number reaches N, the correction processing is executed repetitively.
JP62215805A 1987-08-28 1987-08-28 Code error correction method Pending JPS6458127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62215805A JPS6458127A (en) 1987-08-28 1987-08-28 Code error correction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62215805A JPS6458127A (en) 1987-08-28 1987-08-28 Code error correction method

Publications (1)

Publication Number Publication Date
JPS6458127A true JPS6458127A (en) 1989-03-06

Family

ID=16678547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62215805A Pending JPS6458127A (en) 1987-08-28 1987-08-28 Code error correction method

Country Status (1)

Country Link
JP (1) JPS6458127A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09282809A (en) * 1996-04-18 1997-10-31 Hitachi Ltd Recorded information playback device
JP2010092574A (en) * 2008-10-12 2010-04-22 Kyoto Software Research Inc Flash file system error correction function

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62248313A (en) * 1986-04-21 1987-10-29 Sony Corp Decoding method for error correction code
JPS63288522A (en) * 1987-05-21 1988-11-25 Toshiba Corp Error correction circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62248313A (en) * 1986-04-21 1987-10-29 Sony Corp Decoding method for error correction code
JPS63288522A (en) * 1987-05-21 1988-11-25 Toshiba Corp Error correction circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09282809A (en) * 1996-04-18 1997-10-31 Hitachi Ltd Recorded information playback device
JP2010092574A (en) * 2008-10-12 2010-04-22 Kyoto Software Research Inc Flash file system error correction function

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