DE69525725D1 - Kodemodulations-, Kodedemodulations- und Kodedetektionsverfahren - Google Patents

Kodemodulations-, Kodedemodulations- und Kodedetektionsverfahren

Info

Publication number
DE69525725D1
DE69525725D1 DE69525725T DE69525725T DE69525725D1 DE 69525725 D1 DE69525725 D1 DE 69525725D1 DE 69525725 T DE69525725 T DE 69525725T DE 69525725 T DE69525725 T DE 69525725T DE 69525725 D1 DE69525725 D1 DE 69525725D1
Authority
DE
Germany
Prior art keywords
code
demodulation
detection methods
modulation
code modulation
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 - Lifetime
Application number
DE69525725T
Other languages
English (en)
Inventor
Hiroyuki Ino
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.)
Sony Corp
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
Application granted granted Critical
Publication of DE69525725D1 publication Critical patent/DE69525725D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
    • G11B20/10083—PR1 or PR(1,1,), i.e. partial response class 1, polynomial 1+D
    • 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
    • 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
    • G11B20/10009—Improvement or modification of read or write signals
    • 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)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Communication Control (AREA)
DE69525725T 1994-12-28 1995-12-28 Kodemodulations-, Kodedemodulations- und Kodedetektionsverfahren Expired - Lifetime DE69525725D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32694794A JP3509083B2 (ja) 1994-12-28 1994-12-28 符号変調方法、符号復調方法、および符号復号方法

Publications (1)

Publication Number Publication Date
DE69525725D1 true DE69525725D1 (de) 2002-04-11

Family

ID=18193556

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69525725T Expired - Lifetime DE69525725D1 (de) 1994-12-28 1995-12-28 Kodemodulations-, Kodedemodulations- und Kodedetektionsverfahren

Country Status (5)

Country Link
US (1) US5638063A (de)
EP (1) EP0720302B1 (de)
JP (1) JP3509083B2 (de)
KR (1) KR960025617A (de)
DE (1) DE69525725D1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6177892B1 (en) 1998-12-31 2001-01-23 Oak Technology, Inc. EFM/DVD demodulator
US6732320B1 (en) * 2000-04-28 2004-05-04 Promos Technologies Inc. Method and system for improved error correction in optical media data processing
US20020110200A1 (en) * 2000-12-19 2002-08-15 Intel Corporation Method for quadrature phase decoding allowing for skipped states
DE10134472B4 (de) * 2001-07-16 2005-12-15 Infineon Technologies Ag Sende- und Empfangsschnittstelle und Verfahren zur Datenübertragung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567464A (en) * 1983-01-28 1986-01-28 International Business Machines Corporation Fixed rate constrained channel code generating and recovery method and means having spectral nulls for pilot signal insertion
US4888779A (en) * 1988-03-18 1989-12-19 International Business Machines Corporation Matched spectral null trellis codes for partial response channels
JPH063943B2 (ja) * 1989-11-13 1994-01-12 インターナショナル・ビジネス・マシーンズ・コーポレーション ２進データ列の符号化方法
US5280489A (en) * 1992-04-15 1994-01-18 International Business Machines Corporation Time-varying Viterbi detector for control of error event length
JP3528929B2 (ja) * 1993-09-22 2004-05-24 ソニー株式会社 磁気記録装置

Also Published As

Publication number Publication date
EP0720302B1 (de) 2002-03-06
JP3509083B2 (ja) 2004-03-22
EP0720302A3 (de) 1999-03-17
KR960025617A (ko) 1996-07-20
US5638063A (en) 1997-06-10
EP0720302A2 (de) 1996-07-03
JPH08180606A (ja) 1996-07-12

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Legal Events

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