JPS645120A - Error correction coding/decoding method - Google Patents
Error correction coding/decoding methodInfo
- 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
Links
Landscapes
- 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.
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) |
-
1987
- 1987-06-27 JP JP62160530A patent/JPS645120A/en active Pending
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