KR880010403A - 에러정정방법 및 그 장치 - Google Patents
에러정정방법 및 그 장치 Download PDFInfo
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- KR880010403A KR880010403A KR1019880001183A KR880001183A KR880010403A KR 880010403 A KR880010403 A KR 880010403A KR 1019880001183 A KR1019880001183 A KR 1019880001183A KR 880001183 A KR880001183 A KR 880001183A KR 880010403 A KR880010403 A KR 880010403A
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- 238000000034 method Methods 0.000 title claims 25
- 208000011580 syndromic disease Diseases 0.000 claims 40
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
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- 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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/13—Linear codes
- H03M13/15—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
- H03M13/151—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes using error location or error correction polynomials
- H03M13/1515—Reed-Solomon codes
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2906—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using block codes
- H03M13/2909—Product codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2906—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using block codes
- H03M13/2927—Decoding strategies
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2948—Iterative decoding
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- Engineering & Computer Science (AREA)
- Probability & Statistics with Applications (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Signal Processing (AREA)
- Error Detection And Correction (AREA)
- Detection And Correction Of Errors (AREA)
Abstract
Description
Claims (13)
- 에러정정용 패티리를 사용하여 에러정정 처리를 행하여 에러를 정정하기 위한 에러정정용 패리티와, 에러체크용 패리티를 사용하여 에러체크처리를 행하여 에러를 체크하기 위한 에러체크용 패리티를 포함하는 소정의 데이터 배열에 에러가 발생해였는지의 여부를 체크하기 위한 에러정정방법에 있어서, a) 상기 에러정정처리중 상기 에러정정용 패리티를 사용하여 에러정정용 신드롬을 생성하고, b) 상기 에러정정용 신드롬의 생성과 동시에 에러체크용 시드롬을 생성하고, c) 상기 에러정정 처리중 생성된 에러정보에 따라서 상기 에러체크용 신드롬을 정정함으로써, 에러정정 처리가 완료될 때까지 에러체크용 신드롬이 최종적으로 생성되는 단계로 이루어지는 것을 특징으로 하는 에러정정 방법.
- 제1항에 있어서, 상기 에러정정용 패리티는 CRC(cyclic redundancy check)코드에 따라서 생성되는 것을 특징으로 하는 에러정정방법.
- 제1항에 있어서, 상기 에러정정용 패리티는 리드솔로몬코드에 따라서 생성되는 것을 특징으로 하는 에러정정방법.
- 제1항에 있어서, 상기 에러정보는 에러위치와 에러치를 포함하는 것을 특징으로 하는 에러정정방법.
- 소정 방향으로 배열된 각 데이터에 대한 에러정정용 패리티를 사용하여 에러정정 처리를 행하고, 소정수의 데이터에 에러의 존재를 체크하기 위하여 소저수의 데이터와 에러체크용 패리티로 형성된 데이터블록에 에러가 발생하였는지의 여부를 체크하기 위한 에러정정방법에 있어서, a) 상기 데이터블록의 상기 소정방향으로 배열된 각 데이터에 대한 에러정정용 신드롬을 생성하고, b) 상기 에러정정 신드롬의생성단계중 에러체크용 신드롬을 생성하고, c) 상기 에러정정 처리중 생성된 상기 에러정정용 신드롬에 따라서 에러정보를 사용하여 상기 에러체크용 신드롬을 정정함으로써 에러정정처리가 완료될 때까지 다음의 에러체크 처리에 사용할 정정된 에러체크용 신드롬이 생성되는 단계로 이루어지는 것을 특징으로 하는 에러정정방법.
- 제5항에 있어서, 상기 에러체크용 패리티는 CRC 코드에 따라서 생성되는 것을 특징으로 하는 에러정정방법.
- 제5항에 있어서, 상기 에러정보용 패리티는 리도솔로몬코드에 따라서 생성되는 것을 특징으로 하는 에러정정방법.
- 제5항에 있어서, 상기 에러정보는 에러위치와 에러치를 포함하는 것을 특징으로 하는 에러정정방법.
- 제1항에 있어서, 제2에러정정용 패리티는 상기 소정방향과 다른 제2방향으로 배설된 각 데이터에 부가되고, 상기 에러체크용 신드롬은 상기 제2에러정정용 패리티를 사용하여 생성된 에러정정용 신드롬에 따라서 에러정보를 사용하여 정정되는 것을 특징으로 하는 에러정정방법.
- 제9항에 있어서, 상기 소정방향은 행방향이고, 상기 제2방향은 상기 데이터블록의 열방향인 것을 특징으로 하는 에러정정방법.
- 에러정정용 패리티를 사용하여 에러정정처리를 해아여 에러를 정정하기 위한 에러정정용 패리티와, 에러체크용 패리티를 사용하여 에러체크 처리를 행하여 에러를 체크하기 위한 에러체크용 패리티를 포함하는 소정의 데이터 배열에 에러가 발생하였는지의 여부를 체크하기 위한 에러정정 장치에 있어서, a) 상기 에러정정용 패리티로부터 데이터의 에러를 정정하기 위한 에러정정 신드롬을 생성하는 에러정정용 신드롬 생성수단과, b) 상기 에러체크용 패리티로부터 데이터의 에러를 체크하기 위한 에러체크용 신드롬을 생성하는 에러체크용 신드롬 생성수단과, c) 상기 에러정정용 신드롬 생성수단에 의해 생성된 상기 에러정정 신드롬을 따라서 에러위치와 에러치를 산출하여 에러를 정정하기 위한 에러정정수단과, d) 상기 에러위치와 상기 에러치에 따라서 상기 에러체크용 신드롬 생성수단에 의해 생성된 에러체크용 신드롬을 정정하기 위한 신드롬 정정수단으로 이루어지며, 에러정정 처리가 완료될 때까지 에러체크 동작을 위한 정정된 에러체크용 신드롬이 생성되는 것을 특징으로 하는 에러정정장치.
- 소정 방향으로 배열된 각 데이터에 부가된 에러정정용 패리티를 사용하여 에러정정처리를 행하고, 에러체크용 패리티를 사용하여 에러체크 처리를 행하고, 소정수의 데이터에 에러의 존재를 체크하기 위하여 소정수의 데이터와 에러체크용 패리티로 형성된 2차원 데이터 배열에 에러가 발생하였는지의 여부를 체크하기 위한 에러장정정 장치에 있어서, a) 상기 2차원 배열 데이터의 상기 소정방향으로 배열된 각 데이터에 대한 에러정정용 신드롬을 생성하기 위한 에러정정용 신드롬 생성수단과, b) 상기 에러정정용 신드롬을 생성하기 위한 상기 에러정정용 신드롬 생성수단에 공급된 데이터에 따라서 에러체크용 신드롬을 생성하기 위한 에러체크용 신드롬 생성수단과, c) 상기 에러정정용 신드롬 생성수단에 의해서 생성된 상기 에러정정용 신드롬에 따라서 에러위치와 에러치를 판정하여 에러를 정정하기 위한 에러정정수단과, d) 상기 에러체크용 신드롬 생성수단에 의해 생성된 에러체크용 신드롬을 정정하기 위한 시드롬 정정수단으로 이루어지며, 에러정정 처리 완료시에 에러체크 처리를 위한 최종의 에러체크용 신드롬이 생성되는 것을 특징으로 하는 에러정정장치.
- 제12항에 있어서, 또한 a) 상기 소정 방향과 다른 제2의 방향으로 배열된 각 데이터에 대한 제2에러정정용 신드롬을 생성하기 위한 제2에러정정용 신드롬 생성수단과, 상기 제2에러정정용 신드롬은 상기 제2방향으로 각 데이터에 대한 제2에러정정 패리티에 따라서 에러를 정정하고, b) 상기 제 2 에러정정용 신드롬 생성수단에 의하여 생성된 제2 에러정정 신드롬에 따라서 에러위치와 에러치를 산출하여 에러를 정정하는 제2에러정정수단으로 이루어지며, 신드롬 정정수단은 또한상기 제2에러정정 수단으로부터 상기 에러위치와 에러체를 수신하고, 상기 에러체크용 신드롬은 또한 상기 제2 에러정정 수단에 의하여 얻은 에러위치와 에러치에 따라서 정정되는 것을 특징으로 하는 에러정정장치.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62029351A JP2605271B2 (ja) | 1987-02-10 | 1987-02-10 | エラー訂正及びチエツク装置 |
| JP62-29351 | 1987-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR880010403A true KR880010403A (ko) | 1988-10-08 |
Family
ID=12273795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019880001183A Ceased KR880010403A (ko) | 1987-02-10 | 1988-02-09 | 에러정정방법 및 그 장치 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4881232A (ko) |
| EP (1) | EP0278700A3 (ko) |
| JP (1) | JP2605271B2 (ko) |
| KR (1) | KR880010403A (ko) |
| AU (1) | AU604836B2 (ko) |
| CA (1) | CA1295745C (ko) |
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| US5655113A (en) | 1994-07-05 | 1997-08-05 | Monolithic System Technology, Inc. | Resynchronization circuit for a memory system and method of operating same |
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| JPH10145238A (ja) * | 1996-11-13 | 1998-05-29 | Canon Inc | 誤り訂正装置及び方法 |
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-
1987
- 1987-02-10 JP JP62029351A patent/JP2605271B2/ja not_active Expired - Lifetime
-
1988
- 1988-02-04 CA CA000558190A patent/CA1295745C/en not_active Expired - Lifetime
- 1988-02-05 EP EP19880300997 patent/EP0278700A3/en not_active Ceased
- 1988-02-05 US US07/152,472 patent/US4881232A/en not_active Expired - Fee Related
- 1988-02-09 KR KR1019880001183A patent/KR880010403A/ko not_active Ceased
- 1988-02-09 AU AU11468/88A patent/AU604836B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CA1295745C (en) | 1992-02-11 |
| JPS63197123A (ja) | 1988-08-16 |
| JP2605271B2 (ja) | 1997-04-30 |
| AU1146888A (en) | 1988-08-11 |
| US4881232A (en) | 1989-11-14 |
| EP0278700A3 (en) | 1991-08-14 |
| AU604836B2 (en) | 1991-01-03 |
| EP0278700A2 (en) | 1988-08-17 |
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