JPS57157654A - Error correcting circuit - Google Patents
Error correcting circuitInfo
- Publication number
- JPS57157654A JPS57157654A JP56043475A JP4347581A JPS57157654A JP S57157654 A JPS57157654 A JP S57157654A JP 56043475 A JP56043475 A JP 56043475A JP 4347581 A JP4347581 A JP 4347581A JP S57157654 A JPS57157654 A JP S57157654A
- Authority
- JP
- Japan
- Prior art keywords
- zero
- circuit
- detecting
- syndrome
- detecting circuit
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1806—Pulse code modulation systems for audio signals
- G11B20/1809—Pulse code modulation systems for audio signals by interleaving
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1876—Interpolating methods
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Detection And Correction Of Errors (AREA)
- Error Detection And Correction (AREA)
Abstract
PURPOSE:To obtain a titled circuit which can detect and correct words missed by a CRC, by installing a zero detecting circuit to the circuit and by detecting that the syndrome is zero. CONSTITUTION:A zero detecting circuit detects whether all syndromes S1 are zero or not. Another zero detecting circuit 19 detects whether T<i-7>S2 obtained from a generated matrix T of a corrected word Q and a syndrome S2 is zero or not. The other zero detecting circuit 20 detects a syndrome Si=O. A controlling circuit 21 controlls wrong locations. Therefore, by detecting the output of an adding circuit 10 at the zero detecting circuit 20, the locations of wrong words can be found and corrected.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56043475A JPS57157654A (en) | 1981-03-25 | 1981-03-25 | Error correcting circuit |
DE19823211053 DE3211053A1 (en) | 1981-03-25 | 1982-03-25 | ERROR CORRECTION AND CONTROL SYSTEM FOR PCM DECODING DEVICES |
US06/609,854 US4604747A (en) | 1981-03-25 | 1984-05-14 | Error correcting and controlling system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56043475A JPS57157654A (en) | 1981-03-25 | 1981-03-25 | Error correcting circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57157654A true JPS57157654A (en) | 1982-09-29 |
Family
ID=12664739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56043475A Pending JPS57157654A (en) | 1981-03-25 | 1981-03-25 | Error correcting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57157654A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60104947U (en) * | 1983-12-23 | 1985-07-17 | ソニー株式会社 | error correction decoder |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5533278A (en) * | 1978-08-31 | 1980-03-08 | Fujitsu Ltd | Error correcting processor |
JPS5552515A (en) * | 1978-10-11 | 1980-04-17 | Matsushita Electric Ind Co Ltd | Pcm signal processor |
-
1981
- 1981-03-25 JP JP56043475A patent/JPS57157654A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5533278A (en) * | 1978-08-31 | 1980-03-08 | Fujitsu Ltd | Error correcting processor |
JPS5552515A (en) * | 1978-10-11 | 1980-04-17 | Matsushita Electric Ind Co Ltd | Pcm signal processor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60104947U (en) * | 1983-12-23 | 1985-07-17 | ソニー株式会社 | error correction decoder |
JPS638984Y2 (en) * | 1983-12-23 | 1988-03-17 |
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