KR940002702A - 오류정정 시스템 - Google Patents
오류정정 시스템 Download PDFInfo
- Publication number
- KR940002702A KR940002702A KR1019920013349A KR920013349A KR940002702A KR 940002702 A KR940002702 A KR 940002702A KR 1019920013349 A KR1019920013349 A KR 1019920013349A KR 920013349 A KR920013349 A KR 920013349A KR 940002702 A KR940002702 A KR 940002702A
- Authority
- KR
- South Korea
- Prior art keywords
- error
- syndrome
- value
- error correction
- inputting
- Prior art date
Links
- 238000012937 correction Methods 0.000 title claims abstract description 19
- 208000011580 syndromic disease Diseases 0.000 claims abstract 20
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Quality & Reliability (AREA)
- General Engineering & Computer Science (AREA)
- Error Detection And Correction (AREA)
- Detection And Correction Of Errors (AREA)
Abstract
Description
Claims (2)
- 신드롬(Si+1)을 입력하여 신드롬(Si')으로 변환하기 위한 다음의 식의 연산을 수행하는 신드롬 수정 수단;상기 신드롬 수정수단의 수정된 신드롬을 입력하여 n-1개의 오류정정을 하는 n-1개의 오류정정을 하는 n-1개의 오류정정 수단, 상기 n-1개의 오류정정이 되지 못했을 경우에 상기 k값을 변화하는 계수 수단; 상기 계수 수단의 k출력 신호에 해당하는 αk값을 상기 신드롬 변환수단에 출력하기 위한 수단; 상기 n-1개의 오류정정 수단의 출력신호를 입력하여 실제적인 오류값을 계산하는 실제적인 오류값 계산 수단;ei=ei'/(1+αi-k), i=0,1,2,…상기 오류값 계산수단의 출력신호와 신드롬을 입력하고 가산하여 최종적인 오류정정을 하는 가산수단을 구비한 것을 특징으로 하는 오류정정 시스템.
- 오류정정 시스템의 오류정정 방법에 있어서, n개의 오류값과 오류위치를 구하는 단계; 상기 오류값과 오류위치를 이용하여 신드롬을 구하는 단계; 상기 구해진 신드롬들을 다음의 식에 의해 새로운 신드롬으로 변환하는 신드롬 변환 단계;상기 새로운 신드롬들을 이용하여 n-1개의 오류정정을 수행하는 오류정정 단계; 상기 오류정정 단계에서 오류가 구해지지 않았을 때 상기 계수(k)값을 변화하고 상기 (k)값에 해당하는 αk값을 상기 신드롬 변환단계로 보내어 n-1개의 오류정정이 될때까지 반복수행하고 만일 오류정정이 되면 그 다음 단계로 진행하는 판단 단계; 상기 오류정정 단계에서 구해진 값을 이용하여 다음의 식에 따라 실제적인 오류값을 계산하는 단계ei=ei'/(1+αi-k), i=0,1,2,…; 및상기 최종 오류값을 이용하여 최종 오류위치를 계산하는 최종 오류위치 계산 단계로 이루어진 것을 특징으로 하는 오류정정 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920013349A KR940011663B1 (ko) | 1992-07-25 | 1992-07-25 | 오류정정 시스템 |
JP5013680A JPH06140941A (ja) | 1992-07-25 | 1993-01-29 | 誤り訂正システム |
US08/095,596 US5450420A (en) | 1992-07-25 | 1993-07-26 | Error correction system for correcting errors generated in digital signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920013349A KR940011663B1 (ko) | 1992-07-25 | 1992-07-25 | 오류정정 시스템 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940002702A true KR940002702A (ko) | 1994-02-19 |
KR940011663B1 KR940011663B1 (ko) | 1994-12-23 |
Family
ID=19336988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920013349A KR940011663B1 (ko) | 1992-07-25 | 1992-07-25 | 오류정정 시스템 |
Country Status (3)
Country | Link |
---|---|
US (1) | US5450420A (ko) |
JP (1) | JPH06140941A (ko) |
KR (1) | KR940011663B1 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH088760A (ja) * | 1994-06-16 | 1996-01-12 | Toshiba Corp | 誤り訂正装置 |
US7428669B2 (en) * | 2003-12-07 | 2008-09-23 | Adaptive Spectrum And Signal Alignment, Inc. | Adaptive FEC codeword management |
US7813420B2 (en) * | 2005-06-02 | 2010-10-12 | Adaptive Spectrum And Signal Alignment, Inc. | Adaptive GDFE |
US7817745B2 (en) * | 2005-06-02 | 2010-10-19 | Adaptive Spectrum And Signal Alignment, Inc. | Tonal precoding |
TWI273775B (en) * | 2005-06-17 | 2007-02-11 | Mediatek Inc | Method for generating syndrome value and related syndrome generator |
JP4619931B2 (ja) * | 2005-11-22 | 2011-01-26 | 株式会社東芝 | 復号装置、記憶装置および復号方法 |
US20140369480A1 (en) | 2013-06-12 | 2014-12-18 | Adaptive Spectrum And Signal Alignment, Inc. | Systems, methods, and apparatuses for implementing a dsl system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4205324A (en) * | 1977-12-23 | 1980-05-27 | International Business Machines Corporation | Methods and means for simultaneously correcting several channels in error in a parallel multi channel data system using continuously modifiable syndromes and selective generation of internal channel pointers |
GB2143659B (en) * | 1983-07-19 | 1986-11-05 | Sony Corp | Methods of and apparatus for correcting errors in binary data |
NL8400629A (nl) * | 1984-02-29 | 1985-09-16 | Philips Nv | Snelle decodeur voor reed-solomon-codes, welke mede als encodeur te gebruiken is, alsmede opname/reproduktie-apparaat voorzien van zo een encodeur/decodeur. |
NL8601446A (nl) * | 1986-06-05 | 1988-01-04 | Philips Nv | Werkwijze en inrichting voor het dekoderen van een blok kodesymbolen dat op twee manieren verdeeld is over kodewoorden die elk door een minimum-afstandssepareerbare kode beschermd zijn. |
JP2605271B2 (ja) * | 1987-02-10 | 1997-04-30 | ソニー株式会社 | エラー訂正及びチエツク装置 |
JPS63274221A (ja) * | 1987-05-01 | 1988-11-11 | Ricoh Co Ltd | 誤り訂正復号方式 |
JPS63272226A (ja) * | 1987-04-30 | 1988-11-09 | Sharp Corp | リ−ドソロモン符号の復号方法 |
US5135601A (en) * | 1990-05-25 | 1992-08-04 | Cooper Tire & Rubber Company | Ply material server apparatus |
-
1992
- 1992-07-25 KR KR1019920013349A patent/KR940011663B1/ko not_active IP Right Cessation
-
1993
- 1993-01-29 JP JP5013680A patent/JPH06140941A/ja active Pending
- 1993-07-26 US US08/095,596 patent/US5450420A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR940011663B1 (ko) | 1994-12-23 |
US5450420A (en) | 1995-09-12 |
JPH06140941A (ja) | 1994-05-20 |
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