CA1152649A - Data encoding method and system employing two-thirds code rate with full word look-ahead - Google Patents

Data encoding method and system employing two-thirds code rate with full word look-ahead

Info

Publication number
CA1152649A
CA1152649A CA000360864A CA360864A CA1152649A CA 1152649 A CA1152649 A CA 1152649A CA 000360864 A CA000360864 A CA 000360864A CA 360864 A CA360864 A CA 360864A CA 1152649 A CA1152649 A CA 1152649A
Authority
CA
Canada
Prior art keywords
data
word
bits
code
binary
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
Application number
CA000360864A
Other languages
English (en)
French (fr)
Inventor
Charles A. Bates, Iii
Martin Cohn
George V. Jacoby
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.)
Unisys Corp
Original Assignee
Sperry 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 Sperry Corp filed Critical Sperry Corp
Application granted granted Critical
Publication of CA1152649A publication Critical patent/CA1152649A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CA000360864A 1980-02-19 1980-09-23 Data encoding method and system employing two-thirds code rate with full word look-ahead Expired CA1152649A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/122,632 US4337458A (en) 1980-02-19 1980-02-19 Data encoding method and system employing two-thirds code rate with full word look-ahead
US122,632 1980-02-19

Publications (1)

Publication Number Publication Date
CA1152649A true CA1152649A (en) 1983-08-23

Family

ID=22403859

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000360864A Expired CA1152649A (en) 1980-02-19 1980-09-23 Data encoding method and system employing two-thirds code rate with full word look-ahead

Country Status (3)

Country Link
US (1) US4337458A (enExample)
JP (1) JPS56149152A (enExample)
CA (1) CA1152649A (enExample)

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US4398225A (en) * 1981-04-24 1983-08-09 Iomega Corporation Combined serializer encoder and decoder for data storage system
US4488142A (en) * 1981-12-31 1984-12-11 International Business Machines Corporation Apparatus for encoding unconstrained data onto a (1,7) format with rate 2/3
NL8203575A (nl) * 1982-09-15 1984-04-02 Philips Nv Werkwijze voor het coderen van een stroom van databits, inrichting voor het uitvoeren van de werkwijze en inrichting voor het decoderen van een stroom databits.
DE3326912A1 (de) * 1983-07-26 1985-02-07 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur codeumsetzung
JPS60185431A (ja) * 1984-03-02 1985-09-20 Matsushita Graphic Commun Syst Inc デイジタル信号変換装置
US4833471A (en) * 1984-03-26 1989-05-23 Canon Kabushiki Kaisha Data processing apparatus
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
US4684921A (en) * 1985-06-13 1987-08-04 International Business Machines Corporation RLL (1,7) encoder with single state bit
US4688016A (en) * 1985-06-13 1987-08-18 International Business Machines Corporation Byte-wide encoder and decoder system for RLL (1,7) code
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
US4928187A (en) * 1987-02-20 1990-05-22 Laserdrive Limited Method and apparatus for encoding and decoding binary data
US4866741A (en) * 1987-11-05 1989-09-12 Magnetic Peripherals Inc. 3/2 Frequency divider
US4823209A (en) * 1987-11-05 1989-04-18 Magnetic Peripherals Inc. 1,7,2,3 Encoding/decoding employing 3/2 frequency division
US4813059A (en) * 1988-04-15 1989-03-14 Magnetic Peripherals Inc. Readback recovery of run length limited codes
JP2708859B2 (ja) * 1989-03-16 1998-02-04 三洋電機株式会社 光ディスク記録装置
DE4127984A1 (de) * 1991-08-23 1993-02-25 Broadcast Television Syst Synchronisationsverfahren fuer einen lauflaengen-begrenzten (1,7) -code und schaltungsanordnung hierfuer
US5349350A (en) * 1991-10-31 1994-09-20 Integral Peripherals, Inc. Run length limited encoding/decoding system for low power disk drives
DE69217860T2 (de) * 1991-12-09 1997-10-16 Matsushita Electric Ind Co Ltd Digitale Modulator- oder Demodulatorschaltung
US5260703A (en) * 1992-08-27 1993-11-09 Quantum Corporation Data encoding and decoding within PRML class IV sampling data detection channel of disk drive
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
EP0624000B1 (en) * 1993-05-04 2000-07-19 Koninklijke Philips Electronics N.V. Device for encoding/decoding n-bit source words into corresponding m-bit channel words, and vice versa
US5477222A (en) * 1993-05-04 1995-12-19 U.S. Philips Corporation Device for encoding/decoding N-bit source words into corresponding M-bit channel words, and vice versa
EP0644544B1 (en) * 1993-09-21 1999-11-17 STMicroelectronics S.r.l. High-frequency pipelined RLL decoder
EP0652562B1 (en) * 1993-11-10 2001-10-17 STMicroelectronics S.r.l. Programmable single/dual output data streams RLL/NRZ decoder
DE4341195B4 (de) * 1993-12-03 2008-04-17 Philips Intellectual Property & Standards Gmbh Verfahren zur Codierung und Schaltungsanordnung hierfür
JP3201716B2 (ja) * 1996-02-22 2001-08-27 シャープ株式会社 コンピュータ装置
JP3080907B2 (ja) * 1997-07-22 2000-08-28 日本電気アイシーマイコンシステム株式会社 変復調方法および変復調装置
BR9908072A (pt) 1998-12-21 2000-10-31 Koninkl Philips Electronics Nv Dispositivo e processo para codificar uma corrente de bits de dados de um sinal fonte binário, sinal de canal binário, portadora de gravação, e, dispositivo de codificador de uma corrente de bits de dados de um sinal de canal binário
US6567475B1 (en) * 1998-12-29 2003-05-20 Ericsson Inc. Method and system for the transmission, reception and processing of 4-level and 8-level signaling symbols
DE10101346B4 (de) * 2000-03-08 2009-12-24 International Business Machines Corp. Verfahren zum automatischen Umsetzen von Daten, die in einem bestimmten Laufzeitcodierungssystem erzeugt wurden, für die Verarbeitung in einem anderen Laufzeitcodierungssystem
CN1383659A (zh) * 2000-04-25 2002-12-04 皇家菲利浦电子有限公司 用于把n比特源字编码或解码成为相应的m比特信道字或反之的设备
JP2002261619A (ja) 2001-02-28 2002-09-13 Toshiba Corp データ符号化方法、データ符号化装置及び記憶媒体
US6892246B2 (en) * 2001-06-13 2005-05-10 Alan N. Cooper Computer system and method for storing video data
US6580951B2 (en) 2001-06-13 2003-06-17 Ultrak, Inc. Communications distribution apparatus and method
JP4902662B2 (ja) * 2005-11-22 2012-03-21 インテル コーポレイション シリアル・リンクの信号遷移特性ベースのコード化
US7750827B2 (en) 2006-10-18 2010-07-06 Ishida Co. Ltd. Coding device, pulse regenerating device, and communications system
JP4540652B2 (ja) * 2006-10-18 2010-09-08 株式会社イシダ 符号化装置
JP4647583B2 (ja) * 2006-12-13 2011-03-09 株式会社イシダ パルス再生装置及び通信システム
EP1990918A1 (en) 2007-05-07 2008-11-12 Deutsche Thomson OHG Method and apparatus for channel coding
KR20090085257A (ko) * 2008-02-04 2009-08-07 삼성전자주식회사 Ｄｓｖ 제어 방법, 이에 적합한 기록매체 및 장치
WO2009103723A1 (en) * 2008-02-22 2009-08-27 Thomson Licensing Method for channel encoding, method and apparatus for channel decoding
EP2093884A1 (en) 2008-02-22 2009-08-26 Deutsche Thomson OHG Method for channel encoding, method and apparatus for channel decoding
US20100077264A1 (en) * 2008-09-22 2010-03-25 Freitas Oscar W Serialization algorithm for functional esd robustness
US10734016B2 (en) * 2018-08-21 2020-08-04 Marvell Asia Pte, Ltd. Pulse-based writing for magnetic storage media

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US3374475A (en) * 1965-05-24 1968-03-19 Potter Instrument Co Inc High density recording system
US3564557A (en) * 1968-05-21 1971-02-16 Honeywell Inc Self-clocking recording
US3906485A (en) * 1973-06-13 1975-09-16 Ibm Data coding circuits for encoded waveform with constrained charge accumulation
SU575677A1 (ru) * 1976-03-19 1977-10-05 Предприятие П/Я В-2655 Способ записи двоичной информации на магнитный носитель

Also Published As

Publication number Publication date
US4337458A (en) 1982-06-29
JPH0158705B2 (enExample) 1989-12-13
JPS56149152A (en) 1981-11-18

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