JPS55102057A - Error correction unit - Google Patents
Error correction unitInfo
- Publication number
- JPS55102057A JPS55102057A JP902279A JP902279A JPS55102057A JP S55102057 A JPS55102057 A JP S55102057A JP 902279 A JP902279 A JP 902279A JP 902279 A JP902279 A JP 902279A JP S55102057 A JPS55102057 A JP S55102057A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- bit
- output
- error correction
- tripple
- 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)
Abstract
PURPOSE: To perform semiparallel decoding without remarkable increase in the hardware under the minimum inspection bit, by using the double error correction/ tripple error detection BCH code.
CONSTITUTION: The readout word includes K sets of information bits, 2m sets of inspection bits and one full parity bit, and logical sum is made with the circuit AD logically summing the output S3 of the double error bit indication circuit providing the circuits SQ and QB calculating the second and the third power on the Galois field GF(2m) and the output S1 of single error bit indication circuit, and the exclusive OR of the output of the circuit AD and each bit of the readout word is obtained in the circuit CMP. Accordingly, double error correction and further, tripple error detection can be made.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP902279A JPS55102057A (en) | 1979-01-29 | 1979-01-29 | Error correction unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP902279A JPS55102057A (en) | 1979-01-29 | 1979-01-29 | Error correction unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55102057A true JPS55102057A (en) | 1980-08-04 |
Family
ID=11709023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP902279A Pending JPS55102057A (en) | 1979-01-29 | 1979-01-29 | Error correction unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55102057A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH033523A (en) * | 1989-05-12 | 1991-01-09 | American Teleph & Telegr Co <Att> | Method and device for correcting error and transmission system thereof |
-
1979
- 1979-01-29 JP JP902279A patent/JPS55102057A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH033523A (en) * | 1989-05-12 | 1991-01-09 | American Teleph & Telegr Co <Att> | Method and device for correcting error and transmission system thereof |
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