BE784541A - Codage a longueur variable, a longueur de course limitee avec limitation de la propagation des erreurs - Google Patents

Codage a longueur variable, a longueur de course limitee avec limitation de la propagation des erreurs

Info

Publication number
BE784541A
BE784541A BE784541A BE784541A BE784541A BE 784541 A BE784541 A BE 784541A BE 784541 A BE784541 A BE 784541A BE 784541 A BE784541 A BE 784541A BE 784541 A BE784541 A BE 784541A
Authority
BE
Belgium
Prior art keywords
propagation
errors
limitation
limited stroke
variable length
Prior art date
Application number
BE784541A
Other languages
English (en)
French (fr)
Inventor
P A Iranasrek
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of BE784541A publication Critical patent/BE784541A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/4025—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code constant length to or from Morse code conversion
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
BE784541A 1971-06-07 1972-06-07 Codage a longueur variable, a longueur de course limitee avec limitation de la propagation des erreurs BE784541A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15031771A 1971-06-07 1971-06-07

Publications (1)

Publication Number Publication Date
BE784541A true BE784541A (fr) 1972-10-02

Family

ID=22534004

Family Applications (1)

Application Number Title Priority Date Filing Date
BE784541A BE784541A (fr) 1971-06-07 1972-06-07 Codage a longueur variable, a longueur de course limitee avec limitation de la propagation des erreurs

Country Status (8)

Country Link
US (1) US3689899A (it)
JP (1) JPS5321257B1 (it)
BE (1) BE784541A (it)
CA (1) CA969670A (it)
DE (1) DE2227148C3 (it)
FR (1) FR2140408A1 (it)
GB (1) GB1336824A (it)
IT (1) IT950859B (it)

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* Cited by examiner, † Cited by third party
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CN115037419A (zh) * 2022-08-11 2022-09-09 德州鲲程电子科技有限公司 用于芯片测试过程中的不定长编码数据串行传输的方法

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JPS59167165A (ja) * 1983-03-11 1984-09-20 Toshiba Corp 可変長符号化復号化方式
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JPH07118657B2 (ja) * 1985-04-15 1995-12-18 三菱電機株式会社 ２進デ−タ符号化及び復号化方式
CA1255390A (en) * 1985-06-13 1989-06-06 Wilson W. Fok Rll (1,7) encoder with single state bit
US4675652A (en) * 1986-04-11 1987-06-23 Quantum Corporation Integrated encoder decoder for variable length, zero run length limited codes
JPS62298234A (ja) * 1986-06-13 1987-12-25 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 非対称ランレングス制限コ−ド化方法
JPH0656958B2 (ja) * 1986-07-03 1994-07-27 キヤノン株式会社 情報デ−タ復元装置
US4833470A (en) * 1986-07-15 1989-05-23 Matsushita Electric Industrial Co., Ltd. Code conversion apparatus
DE3632682A1 (de) * 1986-09-26 1988-03-31 Philips Patentverwaltung Schaltungsanordnung zur umcodierung eines datensignales
US4928187A (en) * 1987-02-20 1990-05-22 Laserdrive Limited Method and apparatus for encoding and decoding binary data
US4873680A (en) * 1987-03-13 1989-10-10 Laserdrive Ltd. Apparatus and method for detecting and compensating for pit extension in an optical disk recording system
US4804959A (en) * 1987-11-10 1989-02-14 International Business Machines Corporation Method and apparatus using multiple codes to increase storage capacity
JP2713574B2 (ja) * 1988-03-26 1998-02-16 株式会社日立製作所 アドレスマーク発生方法および回路
US5016258A (en) * 1988-06-10 1991-05-14 Matsushita Electric Industrial Co., Ltd. Digital modulator and demodulator
FR2641434B1 (fr) * 1988-12-30 1991-03-15 Thomson Csf Dispositif de transmission d'informations utilisant un codage statistique
US5184125A (en) * 1989-06-28 1993-02-02 Digital Equipment Corporation Data encoding and demodulation system
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US5034741A (en) * 1990-03-22 1991-07-23 United Technologies Corporation Variable length bit patterns for data representation
US5099237A (en) * 1990-07-10 1992-03-24 Research Corporation Technologies, Inc. Method and apparatus for providing maximum rate modulation or compression encoding and decoding
US5392168A (en) * 1990-08-31 1995-02-21 Matsushita Electric Industrial Co., Ltd. Method of recording digital video and audio data
NL9002841A (nl) * 1990-12-21 1992-07-16 Philips Nv Werkwijze en inrichting voor het langs optische weg inschrijven, uitlezen, en wissen van een meervlaks registratiedrager, en registratiedrager geschikt voor deze werkwijze en inrichting.
JP3427392B2 (ja) * 1992-05-25 2003-07-14 ソニー株式会社 符号化方法
JP3428039B2 (ja) * 1992-06-30 2003-07-22 ソニー株式会社 同期信号検出器、同期信号検出方法及び復号化装置
US5347276A (en) * 1992-07-13 1994-09-13 Trw Inc. Serial binary pattern generator
US5461631A (en) * 1992-12-15 1995-10-24 International Business Machines Corporation Method for bit resynchronization of code-constrained sequences
US5424881A (en) * 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
JP3127655B2 (ja) * 1993-03-22 2001-01-29 ソニー株式会社 変調装置及び復調装置
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CN113037300B (zh) * 2021-03-04 2023-05-23 中国能源建设集团广东省电力设计研究院有限公司 电力传感器在线监测数据压缩方法、解压方法及监测系统

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115037419A (zh) * 2022-08-11 2022-09-09 德州鲲程电子科技有限公司 用于芯片测试过程中的不定长编码数据串行传输的方法

Also Published As

Publication number Publication date
JPS5321257B1 (it) 1978-07-01
GB1336824A (en) 1973-11-14
DE2227148C3 (de) 1975-11-06
US3689899A (en) 1972-09-05
DE2227148A1 (de) 1973-01-04
CA969670A (en) 1975-06-17
DE2227148B2 (de) 1975-03-27
IT950859B (it) 1973-06-20
FR2140408A1 (it) 1973-01-19

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