JPS559261A - Error correction unit - Google Patents
Error correction unitInfo
- Publication number
- JPS559261A JPS559261A JP8132278A JP8132278A JPS559261A JP S559261 A JPS559261 A JP S559261A JP 8132278 A JP8132278 A JP 8132278A JP 8132278 A JP8132278 A JP 8132278A JP S559261 A JPS559261 A JP S559261A
- Authority
- JP
- Japan
- Prior art keywords
- bytes
- error
- data
- check
- error correction
- 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
- Detection And Correction Of Errors (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Error Detection And Correction (AREA)
Abstract
PURPOSE: To correct all the errors for one byte among two data bytes and check bytes in total one group each, in the data bytes classified into the first and second groups even with three check bytes.
CONSTITUTION: The coded matrix HA using SbBEC(Single b bit Burst Error Correcting) code consists of I, "ro"(Japanese:katakana,256D), and A0, A1,...Ak-1, as shown in Figure. They are respectively identity element, null element and 2b-1 sets of non-null element in Galois field (2b). The data bytes D0, D1... are separated into the first group block A and the second group block B, and three check bytes C0, C1 and C2 are added to them and stored in the memory unit. If no error is present in the outputted data, the syndrome S0=S1=S2="ro"(Japanese:katakana,256D), and the error correction for two bytes is made corresponding to the error of one byte in the blocks A and B, and check bytes C0 to C2 by means of the syndrome calculation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8132278A JPS559261A (en) | 1978-07-03 | 1978-07-03 | Error correction unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8132278A JPS559261A (en) | 1978-07-03 | 1978-07-03 | Error correction unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS559261A true JPS559261A (en) | 1980-01-23 |
Family
ID=13743155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8132278A Pending JPS559261A (en) | 1978-07-03 | 1978-07-03 | Error correction unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS559261A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60145814A (en) * | 1984-01-05 | 1985-08-01 | Mitsubishi Motors Corp | Method of molding mark for positioning at time when hose is fitted |
-
1978
- 1978-07-03 JP JP8132278A patent/JPS559261A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60145814A (en) * | 1984-01-05 | 1985-08-01 | Mitsubishi Motors Corp | Method of molding mark for positioning at time when hose is fitted |
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