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DK139585A - SYSTEM FOR CORRECTING ERRORS IN DIGITAL SIGNALS IN REED-SOLOMON CODE - Google Patents

SYSTEM FOR CORRECTING ERRORS IN DIGITAL SIGNALS IN REED-SOLOMON CODE Download PDF

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Publication number
DK139585A
DK139585A DK139585A DK139585A DK139585A DK 139585 A DK139585 A DK 139585A DK 139585 A DK139585 A DK 139585A DK 139585 A DK139585 A DK 139585A DK 139585 A DK139585 A DK 139585A
Authority
DK
Denmark
Prior art keywords
code
reed
symbols
bits
words
Prior art date
Application number
DK139585A
Other languages
Danish (da)
Other versions
DK139585D0 (en
Inventor
Alain Catrevaux
Original Assignee
Telediffusion Fse
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telediffusion Fse filed Critical Telediffusion Fse
Publication of DK139585D0 publication Critical patent/DK139585D0/en
Publication of DK139585A publication Critical patent/DK139585A/en

Links

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

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  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Detection And Correction Of Errors (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

Method for decoding data coded in Reed-Solomon code with correction of errors, wherein the code words are represented by bits forming a polynomial degree (n-1) comprised of m symbols of information and k control symbols with m+k = n-1, the control symbols being formed by words of 2<p> bits, said words forming the elements of a finite body of Gallois CG (2<p>) comprising the following steps: (i) dividing a packet of bits to be coded by a code generator polynomial of order k, and as a result the portion of the division provides the m information symbols and the remainder of the division be k control symbols; (ii) calculating the syndromes of the polynomial representative of a code word for certain roots of the code generator polynomial, those syndromes being eight and being related by a system of four linear equations of which the coefficients ( sigma 1 - sigma 4) are the locations of the errors in the code word; and resolving those localizing equations.
DK139585A 1983-07-29 1985-03-28 SYSTEM FOR CORRECTING ERRORS IN DIGITAL SIGNALS IN REED-SOLOMON CODE DK139585A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8312581A FR2549984B1 (en) 1983-07-29 1983-07-29 CORRECTION SYSTEM FOR ERRORS OF DIGITAL SIGNALS CODED IN REED-SOLOMON CODE
PCT/FR1984/000181 WO1985000714A1 (en) 1983-07-29 1984-07-30 System for the correction of errors of digital signals coded in reed-solomon code

Publications (2)

Publication Number Publication Date
DK139585D0 DK139585D0 (en) 1985-03-28
DK139585A true DK139585A (en) 1985-05-15

Family

ID=9291255

Family Applications (1)

Application Number Title Priority Date Filing Date
DK139585A DK139585A (en) 1983-07-29 1985-03-28 SYSTEM FOR CORRECTING ERRORS IN DIGITAL SIGNALS IN REED-SOLOMON CODE

Country Status (14)

Country Link
EP (1) EP0133137B1 (en)
JP (1) JPS60501930A (en)
AT (1) ATE38750T1 (en)
BR (1) BR8407000A (en)
CA (1) CA1218461A (en)
DE (1) DE3475253D1 (en)
DK (1) DK139585A (en)
ES (1) ES534728A0 (en)
FI (1) FI851264A0 (en)
FR (1) FR2549984B1 (en)
NO (1) NO851302L (en)
PT (1) PT78995B (en)
WO (1) WO1985000714A1 (en)
YU (1) YU133684A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624676A1 (en) * 1987-12-11 1989-06-16 Trt Telecom Radio Electr Device for coding and decoding Reed-Solomon codes
JPH0267013A (en) * 1988-09-01 1990-03-07 Mitsubishi Electric Corp Galois field arithmetic circuit
JPH07114419B2 (en) * 1989-04-12 1995-12-06 株式会社東芝 QAM communication system
US5212695A (en) * 1989-04-28 1993-05-18 Canon Kabushiki Kaisha Error check or erro correction code coding device
IT1243094B (en) * 1990-02-14 1994-05-24 Silvio Cucchi SYSTEM AND DEVICES FOR CORRECTION OF ERRORS IN DIGITAL TRANSMISSIONS
CA2037527C (en) * 1990-03-05 1999-05-25 Hideki Okuyama Error correction system capable of correcting an error in a packet header by the use of a reed-solomon code
NO913705L (en) * 1991-09-20 1993-03-22 Abb Signal Ab DEVICE THAT MAKES DIGITAL SIGNALS ERROR CHECK
JP2824474B2 (en) * 1992-02-17 1998-11-11 三菱電機株式会社 Error correction system and decoder using this error correction system
JP3176171B2 (en) * 1993-04-21 2001-06-11 キヤノン株式会社 Error correction method and apparatus
GB2391769B (en) 2002-07-31 2005-07-06 Hewlett Packard Co Reed-Solomon decoder and decoding method for errors and erasures decoding
GB2399896A (en) 2002-07-31 2004-09-29 Hewlett Packard Co Identifying uncorrectable codewords in a reed-solomon decoder handling errors and erasures
GB2391344A (en) * 2002-07-31 2004-02-04 Hewlett Packard Co Magnetoresistive solid state storage device and data storage method
MX2021005904A (en) 2018-11-20 2021-09-08 Tes Pharma S R L INHIBITORS OF a-AMINO-ß-CARBOXYMUCONIC ACID SEMIALDEHYDE DECARBOXYLASE.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2093238B (en) * 1981-02-18 1985-04-17 Kokusai Denshin Denwa Co Ltd Error correcting system for simultaneous errors in a code
JPS57155667A (en) * 1981-03-23 1982-09-25 Sony Corp Arithmetic circuit of galois matter

Also Published As

Publication number Publication date
CA1218461A (en) 1987-02-24
ES8601520A1 (en) 1985-10-16
FI851264L (en) 1985-03-29
PT78995B (en) 1986-06-18
DE3475253D1 (en) 1988-12-22
FI851264A7 (en) 1985-03-29
YU133684A (en) 1987-10-31
NO851302L (en) 1985-03-29
EP0133137A1 (en) 1985-02-13
FR2549984B1 (en) 1985-10-18
FR2549984A1 (en) 1985-02-01
ATE38750T1 (en) 1988-12-15
BR8407000A (en) 1985-06-11
ES534728A0 (en) 1985-10-16
DK139585D0 (en) 1985-03-28
FI851264A0 (en) 1985-03-29
EP0133137B1 (en) 1988-11-17
WO1985000714A1 (en) 1985-02-14
PT78995A (en) 1984-08-01
JPS60501930A (en) 1985-11-07

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PBP Patent lapsed
AHB Application shelved due to non-payment