JPS5455339A - Error detecting correction system - Google Patents
Error detecting correction systemInfo
- Publication number
- JPS5455339A JPS5455339A JP12228077A JP12228077A JPS5455339A JP S5455339 A JPS5455339 A JP S5455339A JP 12228077 A JP12228077 A JP 12228077A JP 12228077 A JP12228077 A JP 12228077A JP S5455339 A JPS5455339 A JP S5455339A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- generates
- bit
- error
- check
- 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.)
- Granted
Links
Landscapes
- Error Detection And Correction (AREA)
- Detection And Correction Of Errors (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
PURPOSE: To expand the range of bit-block error detection without increase, especially in check-bit information and in the number of gates needed for coding and decoding, by providing specific conditions to the H matrix as a code.
CONSTITUTION: This system is provided with processor 4 and coding circuit 2 which generates a K number of b-bit data blocks D0, D1...Dk-1 as pieces of data information and check blocks C0, C1...Cr-1 for the (r) value under the relation as shown by equation (1). Then data with an additional check bit is processed by decoding circuit 6 and error-detection circuit 27, so that error detection signal 28 will be outputted which can not be corrected. This decoding circuit 6 is provided with syndrome generating circuit 9 which generates syndrome Si in the relation of equation (2) from received information 8, error pattern generating circuit 11 which generates error pattern Kj from the syndrome of circuit 9, and block pointer generating circuit 13 which generates block pointers Bdj to check blocks
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52122280A JPS5848936B2 (en) | 1977-10-12 | 1977-10-12 | Error detection and correction method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52122280A JPS5848936B2 (en) | 1977-10-12 | 1977-10-12 | Error detection and correction method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5455339A true JPS5455339A (en) | 1979-05-02 |
JPS5848936B2 JPS5848936B2 (en) | 1983-11-01 |
Family
ID=14832042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52122280A Expired JPS5848936B2 (en) | 1977-10-12 | 1977-10-12 | Error detection and correction method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5848936B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5724143A (en) * | 1980-07-18 | 1982-02-08 | Sony Corp | Error correcting method |
-
1977
- 1977-10-12 JP JP52122280A patent/JPS5848936B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5724143A (en) * | 1980-07-18 | 1982-02-08 | Sony Corp | Error correcting method |
JPH0353818B2 (en) * | 1980-07-18 | 1991-08-16 |
Also Published As
Publication number | Publication date |
---|---|
JPS5848936B2 (en) | 1983-11-01 |
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