JPS645120A - Error correction coding/decoding method - Google Patents

Error correction coding/decoding method

Info

Publication number
JPS645120A
JPS645120A JP62160530A JP16053087A JPS645120A JP S645120 A JPS645120 A JP S645120A JP 62160530 A JP62160530 A JP 62160530A JP 16053087 A JP16053087 A JP 16053087A JP S645120 A JPS645120 A JP S645120A
Authority
JP
Japan
Prior art keywords
error correction
correction
arithmetic
missing
symbol
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
JP62160530A
Other languages
Japanese (ja)
Inventor
Makoto Furuhashi
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP62160530A priority Critical patent/JPS645120A/en
Priority to KR1019880006685A priority patent/KR0120823B1/en
Publication of JPS645120A publication Critical patent/JPS645120A/en
Pending legal-status Critical Current

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  • Error Detection And Correction (AREA)

Abstract

PURPOSE:To save the quantity of arithmetic program and to reduce the operation time by using part of arithmetic operation of error correction and/or missing correction for different symbol number in common. CONSTITUTION:A data by one sector read by a magnetic head 4 from a floppy disk 5 and written in a RAM 2 is subject to processing such as error correction by a C1 parity and a C2 parity. That is, error correction for m-symbol and/or missing correction for n-symbol is applied to sets (m, n) of symbol number satisfying 2m+n<=d-1 by an error correction code of inter-code minimum distance (d). In applying the arithmetic operation for error correction and/or missing correction for sets (m1, n1), (m2, n2) different from each other, the arithmetic part in common to the both is calculated in advance. Thus, the arithmetic program quantity for correction and its operation time are reduced.
JP62160530A 1987-06-03 1987-06-27 Error correction coding/decoding method Pending JPS645120A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62160530A JPS645120A (en) 1987-06-27 1987-06-27 Error correction coding/decoding method
KR1019880006685A KR0120823B1 (en) 1987-06-03 1988-06-03 Method and apparatus for processing information data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62160530A JPS645120A (en) 1987-06-27 1987-06-27 Error correction coding/decoding method

Publications (1)

Publication Number Publication Date
JPS645120A true JPS645120A (en) 1989-01-10

Family

ID=15716960

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62160530A Pending JPS645120A (en) 1987-06-03 1987-06-27 Error correction coding/decoding method

Country Status (1)

Country Link
JP (1) JPS645120A (en)

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