BR8701783A - Metodo para codificar um numero pre-selecionavel de bits de dados binarios em um numero pre-selecionavel de palavras-codigo e aparelho para codificar um numero pre-selecionavel de bits de dados binarios em palavras-codigo tendo um numero pre-selecionavel de bits - Google Patents

Metodo para codificar um numero pre-selecionavel de bits de dados binarios em um numero pre-selecionavel de palavras-codigo e aparelho para codificar um numero pre-selecionavel de bits de dados binarios em palavras-codigo tendo um numero pre-selecionavel de bits

Info

Publication number
BR8701783A
BR8701783A BR8701783A BR8701783A BR8701783A BR 8701783 A BR8701783 A BR 8701783A BR 8701783 A BR8701783 A BR 8701783A BR 8701783 A BR8701783 A BR 8701783A BR 8701783 A BR8701783 A BR 8701783A
Authority
BR
Brazil
Prior art keywords
encoding
selectable number
data bits
binary data
code words
Prior art date
Application number
BR8701783A
Other languages
English (en)
Inventor
John Scott Eggenberger
Arvind Motibhai Patel
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 BR8701783A publication Critical patent/BR8701783A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/14—Code 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
    • H03M5/145—Conversion to or from block codes or representations thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Analogue/Digital Conversion (AREA)
BR8701783A 1986-04-24 1987-04-14 Metodo para codificar um numero pre-selecionavel de bits de dados binarios em um numero pre-selecionavel de palavras-codigo e aparelho para codificar um numero pre-selecionavel de bits de dados binarios em palavras-codigo tendo um numero pre-selecionavel de bits BR8701783A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/855,641 US4707681A (en) 1986-04-24 1986-04-24 Method and apparatus for implementing optimum PRML codes

Publications (1)

Publication Number Publication Date
BR8701783A true BR8701783A (pt) 1988-02-02

Family

ID=25321747

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8701783A BR8701783A (pt) 1986-04-24 1987-04-14 Metodo para codificar um numero pre-selecionavel de bits de dados binarios em um numero pre-selecionavel de palavras-codigo e aparelho para codificar um numero pre-selecionavel de bits de dados binarios em palavras-codigo tendo um numero pre-selecionavel de bits

Country Status (6)

Country Link
US (1) US4707681A (pt)
EP (1) EP0243708A1 (pt)
JP (1) JPS6318821A (pt)
AU (1) AU593096B2 (pt)
BR (1) BR8701783A (pt)
CA (1) CA1262189A (pt)

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US5604497A (en) * 1995-10-10 1997-02-18 Lucent Technologies Inc. Apparatus and method for increasing density of run length limited block codes without increasing error propagation
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US6018304A (en) * 1997-12-18 2000-01-25 Texas Instruments Incorporated Method and apparatus for high-rate n/n+1 low-complexity modulation codes with adjustable codeword length and error control capability
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US6046691A (en) * 1998-04-13 2000-04-04 Lucent Technologies Inc. Rate 16/17 (0,5) modulation code apparatus and method for partial response magnetic recording channels
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US6158027A (en) * 1998-08-31 2000-12-05 International Business Machines Corporation Enhanced noise-predictive maximum likelihood (NPML) data detection method and apparatus for direct access storage device (DASD)
US6271725B1 (en) 1998-09-30 2001-08-07 Lsi Logic Corporation Low voltage bipolar transconductor circuit with extended dynamic range
US6204781B1 (en) 1999-03-18 2001-03-20 Lucent Technologies Inc. General rate N/(N+1) (0, G) code construction for data coding
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US6408419B1 (en) * 1999-07-01 2002-06-18 Infineon Technologies North America Corp. Trellis code for extended partial response maximum likelihood (EPRML) channel
JP4171171B2 (ja) 2000-10-25 2008-10-22 株式会社日立グローバルストレージテクノロジーズ データ同期検出方法およびデータ同期検出装置、情報記録方法および情報記録装置、情報再生方法および情報再生装置、情報記録フォーマット、信号処理装置、情報記録再生装置、情報記録媒体
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Also Published As

Publication number Publication date
AU593096B2 (en) 1990-02-01
EP0243708A1 (en) 1987-11-04
US4707681A (en) 1987-11-17
AU7188887A (en) 1987-10-29
CA1262189A (en) 1989-10-03
JPH036699B2 (pt) 1991-01-30
JPS6318821A (ja) 1988-01-26

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Legal Events

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B15K Others concerning applications: alteration of classification

Ipc: H03M 5/14 (2006.01)