BR8201573A - Circuito para operar um campo de galois - Google Patents

Circuito para operar um campo de galois

Info

Publication number
BR8201573A
BR8201573A BR8201573A BR8201573A BR8201573A BR 8201573 A BR8201573 A BR 8201573A BR 8201573 A BR8201573 A BR 8201573A BR 8201573 A BR8201573 A BR 8201573A BR 8201573 A BR8201573 A BR 8201573A
Authority
BR
Brazil
Prior art keywords
sup
data words
galois field
exponents
operate
Prior art date
Application number
BR8201573A
Other languages
English (en)
Inventor
Odaka Kentaro
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of BR8201573A publication Critical patent/BR8201573A/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/72—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using residue arithmetic
    • G06F7/724—Finite field arithmetic
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/72—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using residue arithmetic
    • G06F7/724—Finite field arithmetic
    • G06F7/726—Inversion; Reciprocal calculation; Division of elements of a finite field
    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • G06F1/0307—Logarithmic or exponential functions

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Algebra (AREA)
  • Probability & Statistics with Applications (AREA)
  • Multimedia (AREA)
  • Data Mining & Analysis (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • Error Detection And Correction (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Detection And Correction Of Errors (AREA)
  • Complex Calculations (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Optical Communication System (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Mobile Radio Communication Systems (AREA)
BR8201573A 1981-03-23 1982-03-22 Circuito para operar um campo de galois BR8201573A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56041921A JPS57155667A (en) 1981-03-23 1981-03-23 Arithmetic circuit of galois matter

Publications (1)

Publication Number Publication Date
BR8201573A true BR8201573A (pt) 1983-02-08

Family

ID=12621708

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8201573A BR8201573A (pt) 1981-03-23 1982-03-22 Circuito para operar um campo de galois

Country Status (11)

Country Link
US (1) US4473887A (pt)
EP (1) EP0061345B1 (pt)
JP (1) JPS57155667A (pt)
KR (1) KR900005435B1 (pt)
AT (1) ATE40927T1 (pt)
AU (1) AU553405B2 (pt)
BR (1) BR8201573A (pt)
CA (1) CA1174764A (pt)
DE (1) DE3279459D1 (pt)
DK (1) DK160377C (pt)
ES (1) ES8307393A1 (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58140846A (ja) * 1982-02-16 1983-08-20 Hitachi Ltd ２進化１０進数除算装置
JPS58219852A (ja) * 1982-06-15 1983-12-21 Toshiba Corp エラ−訂正回路
EP0096165B1 (en) * 1982-06-15 1988-06-08 Kabushiki Kaisha Toshiba Apparatus for dividing the elements of a galois field
EP0096163B1 (en) * 1982-06-15 1988-06-01 Kabushiki Kaisha Toshiba Apparatus for dividing the elements of a galois field
US4538240A (en) * 1982-12-30 1985-08-27 International Business Machines Corporation Method and apparatus for performing hashing operations using Galois field multiplication
FR2549984B1 (fr) * 1983-07-29 1985-10-18 Telediffusion Fse Systeme de correction d'erreurs de signaux numeriques codes en code de reed-solomon
DE3484455D1 (de) * 1983-09-06 1991-05-23 Toshiba Kawasaki Kk Fehlerkorrekturschaltung.
JPH0680491B2 (ja) * 1983-12-30 1994-10-12 ソニー株式会社 有限体の演算回路
DE3587670T2 (de) * 1984-01-21 1994-06-23 Sony Corp Verfahren und schaltung zur dekodierung von fehlercode-daten.
JPS60160729A (ja) * 1984-01-31 1985-08-22 Sony Corp 有限体の演算回路
JPS60183820A (ja) * 1984-03-02 1985-09-19 Trio Kenwood Corp 除算回路
FR2582888B1 (fr) * 1985-05-30 1987-08-21 Dornstetter Jean Louis Procede de transmission, avec possibilite de correction de paquets d'erreurs, de messages d'information et dispositifs de codage et de decodage pour la mise en oeuvre de ce procede.
JPH0728227B2 (ja) * 1985-06-07 1995-03-29 ソニー株式会社 Ｂｃｈ符号の復号装置
US4918638A (en) * 1986-10-15 1990-04-17 Matsushita Electric Industrial Co., Ltd. Multiplier in a galois field
JPS63132532A (ja) * 1986-11-25 1988-06-04 Ricoh Co Ltd 拡張ガロア体上の多項式除算回路
JPS63132531A (ja) * 1986-11-25 1988-06-04 Ricoh Co Ltd 拡張ガロア体上の多項式除算回路
AU613701B2 (en) * 1987-06-26 1991-08-08 Digital Equipment Corporation Apparatus for computing multiplicative inverses in data encoding decoding devices
US4975867A (en) * 1987-06-26 1990-12-04 Digital Equipment Corporation Apparatus for dividing elements of a Galois Field GF (2QM)
KR940001147B1 (ko) * 1991-03-20 1994-02-14 삼성전자 주식회사 부분체 GF(2^m/2)을 이용한 GF(2^m)상의 연산방법 및 장치
US6341327B1 (en) 1998-08-13 2002-01-22 Intel Corporation Content addressable memory addressable by redundant form input
US6172933B1 (en) * 1998-09-04 2001-01-09 Intel Corporation Redundant form address decoder for memory system
GB2537371B (en) * 2015-04-13 2019-10-02 Imagination Tech Ltd Modulo calculation using polynomials

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805037A (en) * 1972-02-22 1974-04-16 J Ellison N{40 th power galois linear gate
JPS5825294B2 (ja) * 1975-12-18 1983-05-26 富士通株式会社 ３ジヨウカイロオシヨウシタエラ−テイセイカイロ
US4107652A (en) * 1975-12-27 1978-08-15 Fujitsu Limited Error correcting and controlling system
US4030067A (en) * 1975-12-29 1977-06-14 Honeywell Information Systems, Inc. Table lookup direct decoder for double-error correcting (DEC) BCH codes using a pair of syndromes
US4037093A (en) * 1975-12-29 1977-07-19 Honeywell Information Systems, Inc. Matrix multiplier in GF(2m)
US4099160A (en) * 1976-07-15 1978-07-04 International Business Machines Corporation Error location apparatus and methods
US4142174A (en) * 1977-08-15 1979-02-27 International Business Machines Corporation High speed decoding of Reed-Solomon codes
JPS554623A (en) * 1978-06-27 1980-01-14 Kokusai Electric Co Ltd Decoder circuit for bch code
DE2855807A1 (de) * 1978-12-22 1980-06-26 Siemens Ag Schaltungsanordnung zur korrektur von bytestrukturierten fehlern
US4251875A (en) * 1979-02-12 1981-02-17 Sperry Corporation Sequential Galois multiplication in GF(2n) with GF(2m) Galois multiplication gates

Also Published As

Publication number Publication date
KR900005435B1 (ko) 1990-07-30
EP0061345A3 (en) 1984-05-02
DK160377C (da) 1991-08-12
EP0061345A2 (en) 1982-09-29
AU8173182A (en) 1982-09-30
JPS57155667A (en) 1982-09-25
EP0061345B1 (en) 1989-02-22
ES510691A0 (es) 1983-06-16
CA1174764A (en) 1984-09-18
JPS645334B2 (pt) 1989-01-30
DE3279459D1 (en) 1989-03-30
DK160377B (da) 1991-03-04
KR830009529A (ko) 1983-12-21
AU553405B2 (en) 1986-07-17
US4473887A (en) 1984-09-25
ATE40927T1 (de) 1989-03-15
ES8307393A1 (es) 1983-06-16
DK128182A (da) 1982-09-24

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 22/03/97

B15K Others concerning applications: alteration of classification

Ipc: H03M 13/15 (2006.01), G06F 7/72 (2006.0