DE3687285T2 - Verfahren und anordnung zur modifizierung eines lauflaengenbegrenzten codes. - Google Patents

Verfahren und anordnung zur modifizierung eines lauflaengenbegrenzten codes.

Info

Publication number
DE3687285T2
DE3687285T2 DE8686103742T DE3687285T DE3687285T2 DE 3687285 T2 DE3687285 T2 DE 3687285T2 DE 8686103742 T DE8686103742 T DE 8686103742T DE 3687285 T DE3687285 T DE 3687285T DE 3687285 T2 DE3687285 T2 DE 3687285T2
Authority
DE
Germany
Prior art keywords
modifying
arrangement
limit code
running limit
running
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE8686103742T
Other languages
English (en)
Other versions
DE3687285D1 (de
Inventor
Don N M N Coppersmith
Bruce Pruitt Kitchens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of DE3687285D1 publication Critical patent/DE3687285D1/de
Application granted granted Critical
Publication of DE3687285T2 publication Critical patent/DE3687285T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00Conversion of the form of the representation of individual digits
    • H03M5/02Conversion to or from representation by pulses
    • H03M5/04Conversion to or from representation by pulses the pulses having two levels
    • H03M5/14Code representation, e.g. transition, for a given bit cell depending on the information in one or more adjacent bit cells, e.g. delay modulation code, double density code
    • H03M5/145Conversion to or from block codes or representations thereof
DE8686103742T 1985-04-22 1986-03-19 Verfahren und anordnung zur modifizierung eines lauflaengenbegrenzten codes. Expired - Fee Related DE3687285T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/725,954 US4675650A (en) 1985-04-22 1985-04-22 Run-length limited code without DC level

Publications (2)

Publication Number Publication Date
DE3687285D1 DE3687285D1 (de) 1993-01-28
DE3687285T2 true DE3687285T2 (de) 1993-07-01

Family

ID=24916609

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686103742T Expired - Fee Related DE3687285T2 (de) 1985-04-22 1986-03-19 Verfahren und anordnung zur modifizierung eines lauflaengenbegrenzten codes.

Country Status (5)

Country Link
US (1) US4675650A (de)
EP (1) EP0199088B1 (de)
JP (1) JPS61245720A (de)
CA (1) CA1285650C (de)
DE (1) DE3687285T2 (de)

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JPH0233221A (ja) * 1988-07-22 1990-02-02 Matsushita Electric Ind Co Ltd コード変換装置と復号装置
US5060242A (en) * 1989-02-24 1991-10-22 General Electric Company Non-destructive lossless image coder
US5144304A (en) * 1989-07-17 1992-09-01 Digital Equipment Corporation Data and forward error control coding techniques for digital signals
US5151699A (en) * 1990-09-05 1992-09-29 Pioneer Electronic Corporation Data converting apparatus
JPH04185119A (ja) * 1990-11-20 1992-07-02 Matsushita Electric Ind Co Ltd 可変長符号化装置
US5208834A (en) * 1991-03-15 1993-05-04 International Business Machines Corporation Lexicographical encoding and decoding of state-dependent codes
US5625644A (en) * 1991-12-20 1997-04-29 Myers; David J. DC balanced 4B/8B binary block code for digital data communications
SG85049A1 (en) * 1992-02-19 2001-12-19 Mitsubishi Electric Corp Data conversion method and recording/reproducing apparatus using the same
US5550683A (en) * 1992-12-11 1996-08-27 Eastman Kodak Company Magnetic recording channel employing a non-ideal d.c.-free equalizer and a d.c.-free modulation code
US5341134A (en) * 1992-12-30 1994-08-23 Datatape Incorporated Simple coding scheme for DC free channel codes of form M/N, where M=N-1 and M and N are positive integers
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
JPH0729307A (ja) * 1993-07-06 1995-01-31 Eastman Kodak Co データを制御極性方式で記録および検索するためのシステム
KR0135793B1 (ko) * 1994-11-29 1998-05-15 김광호 (4,20)런렝쓰 리미티드 코드 생성방법 및 장치
JP3243140B2 (ja) * 1995-02-20 2002-01-07 パイオニア株式会社 データ変換方式
ES2197338T3 (es) * 1996-12-06 2004-01-01 Jfe Steel Corporation Lamina de acero para tubo de laminado doble y procedimiento de fabricacion.
US6195764B1 (en) 1997-01-30 2001-02-27 Fujitsu Network Communications, Inc. Data encoder/decoder for a high speed serial link
EP0944039B1 (de) * 1997-10-07 2008-10-29 Sony Corporation Magnetaufzeichnungs - /wiedergabevorrichtung
US6195025B1 (en) * 1998-07-13 2001-02-27 International Business Machines Corporation Method and means for invertibly mapping binary sequences into rate 2/3 (1,K) run-length-limited coded sequences with maximum transition density constraints
US7286065B1 (en) 2001-03-05 2007-10-23 Marvell International Ltd. Method and apparatus for DC-level constrained coding
US6661356B1 (en) 2001-03-05 2003-12-09 Marvell International, Ltd. Method and apparatus for DC-level constrained coding
KR100669623B1 (ko) * 2001-03-12 2007-01-15 엘지전자 주식회사 디지털 데이터 변환방법
US7084789B2 (en) * 2003-11-17 2006-08-01 Seagate Technology Llc DC-free code having limited error propagation and limited complexity
US7002492B2 (en) * 2004-07-07 2006-02-21 Seagate Technology Llc High rate running digital sum-restricted code
US8139628B1 (en) 2005-01-10 2012-03-20 Marvell International Ltd. Method and device to compensate for baseline wander
KR20080096745A (ko) * 2006-01-23 2008-11-03 로무 가부시키가이샤 부호화 장치, 복호 장치, 진폭 조정 장치, 기록 정보 판독장치, 신호 처리 장치 및 기억 시스템

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5356917A (en) * 1976-11-02 1978-05-23 Olympus Optical Co Ltd Coding system
JPS5619506A (en) * 1979-07-23 1981-02-24 Sony Corp Code converting method
JPS5632851A (en) * 1979-08-24 1981-04-02 Matsushita Electric Ind Co Ltd Coding and decoding system for binary information
NL186790C (nl) * 1980-07-14 1991-02-18 Philips Nv Werkwijze voor het coderen van een reeks van blokken tweetallige databits in een reeks van blokken van tweetallige kanaalbits, alsmede modulator, demodulator en registratiedrager te gebruiken bij de werkwijze.
JPS57132461A (en) * 1981-02-09 1982-08-16 Sony Corp Converter for binary data code
JPS5875353A (ja) * 1981-10-29 1983-05-07 Pioneer Electronic Corp デ−タ変換方式
US4547890A (en) * 1982-09-28 1985-10-15 Abraham M. Gindi Apparatus and method for forming d.c. free codes
JPS59112409A (ja) * 1982-12-17 1984-06-28 Hitachi Denshi Ltd 符号方式
US4833471A (en) * 1984-03-26 1989-05-23 Canon Kabushiki Kaisha Data processing apparatus
DE3587535T2 (de) * 1984-10-01 1994-01-20 Matsushita Electric Ind Co Ltd Verfahren und Vorrichtung zur numerischen Datenkodierung.

Also Published As

Publication number Publication date
EP0199088B1 (de) 1992-12-16
US4675650A (en) 1987-06-23
JPS61245720A (ja) 1986-11-01
DE3687285D1 (de) 1993-01-28
CA1285650C (en) 1991-07-02
EP0199088A3 (en) 1990-03-07
EP0199088A2 (de) 1986-10-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee