NO20071882L - Modulasjonskoding med RLL (1,K) og MTR (2) beskrankninger - Google Patents

Modulasjonskoding med RLL (1,K) og MTR (2) beskrankninger

Info

Publication number
NO20071882L
NO20071882L NO20071882A NO20071882A NO20071882L NO 20071882 L NO20071882 L NO 20071882L NO 20071882 A NO20071882 A NO 20071882A NO 20071882 A NO20071882 A NO 20071882A NO 20071882 L NO20071882 L NO 20071882L
Authority
NO
Norway
Prior art keywords
mtr
rll
labels
modulation coding
description
Prior art date
Application number
NO20071882A
Other languages
English (en)
Inventor
Willem M J M Coene
Alexander Padiy
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of NO20071882L publication Critical patent/NO20071882L/no

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
    • 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
    • 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
    • G11B20/10194—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using predistortion during writing
    • 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
    • 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
    • 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
    • H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind
    • 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
    • G11B2020/1453—17PP modulation, i.e. the parity preserving RLL(1,7) code with rate 2/3 used on Blu-Ray discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Error Detection And Correction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Denne oppfinnelsen vedrører en fremgangsmåte for å omforme en brukerbitstrøm til en kodet bitstrøm ved hjelp av en løpelengdebeskranket (d,k) kanalkode hvor kanalkoden har en beskrankning på d = 1. For å sikre en forbedring i bitdeteksjonsytelsen er i tillegg en RMTR-beskrankning på r = 2 gjort gjeldende, begrensende til to det maksimale antall av minsteløp tillatt av d = I beskrankningen. En tilleggsfordel med en slik kode er en begrensning av tilbakesporingsdybden til en Viterbi-bitdetektor. Basert på to forskjellige k-beskrankninger er konstruksjonen av slik d = I og r = 2 koder lagt fram.
NO20071882A 2004-09-15 2007-04-13 Modulasjonskoding med RLL (1,K) og MTR (2) beskrankninger NO20071882L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04104463 2004-09-15
PCT/IB2005/052956 WO2006030359A1 (en) 2004-09-15 2005-09-09 Modulation coding with rll (1, k) and mtr (2) constraints

Publications (1)

Publication Number Publication Date
NO20071882L true NO20071882L (no) 2007-06-13

Family

ID=35429368

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20071882A NO20071882L (no) 2004-09-15 2007-04-13 Modulasjonskoding med RLL (1,K) og MTR (2) beskrankninger

Country Status (17)

Country Link
US (1) US20080316071A1 (no)
EP (1) EP1792403A1 (no)
JP (1) JP2008513918A (no)
KR (1) KR20070054242A (no)
CN (1) CN101023586A (no)
AR (1) AR050743A1 (no)
AU (1) AU2005283797A1 (no)
BR (1) BRPI0515179A (no)
CA (1) CA2580388A1 (no)
EA (1) EA200700640A1 (no)
IL (1) IL181862A0 (no)
MX (1) MX2007002997A (no)
MY (1) MY145479A (no)
NO (1) NO20071882L (no)
TW (1) TW200627399A (no)
WO (1) WO2006030359A1 (no)
ZA (1) ZA200703062B (no)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169833A1 (en) * 2008-09-30 2010-03-31 Thomson Licensing Finite-state machine RLL coding with limited repeated minimum transition runlengths
EP2254248A1 (en) * 2009-05-19 2010-11-24 Thomson Licensing Method for modifying a channel encoder finite state machine, and method for channel encoding
TWI406271B (zh) * 2010-09-27 2013-08-21 Sunplus Technology Co Ltd 資料還原裝置與方法
RU2013125784A (ru) 2013-06-04 2014-12-10 ЭлЭсАй Корпорейшн Устройство для обработки сигналов, переносящих кодированные с модуляцией биты четности

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11120560A (ja) * 1997-10-17 1999-04-30 Sony Corp 光ディスクの記録方法及びアクセス方法、光ディスク、光ディスク記録装置及び光ディスク装置
DE69839246T2 (de) * 1997-12-12 2009-03-19 Sony Corp. Optische platte aufzeichnungs/wiedergabeverfahren, optische platte und optischeplattenvorrichtung
JP3985173B2 (ja) * 1998-05-29 2007-10-03 ソニー株式会社 変調装置および方法、復調装置および方法、並びにデータ格納媒体
JP4692234B2 (ja) * 2005-11-10 2011-06-01 ソニー株式会社 変調テーブル、変調装置および方法、プログラム、並びに記録媒体

Also Published As

Publication number Publication date
CN101023586A (zh) 2007-08-22
MX2007002997A (es) 2007-05-16
EA200700640A1 (ru) 2007-08-31
BRPI0515179A (pt) 2008-07-08
IL181862A0 (en) 2007-07-04
MY145479A (en) 2012-02-29
JP2008513918A (ja) 2008-05-01
AU2005283797A1 (en) 2006-03-23
ZA200703062B (en) 2008-08-27
US20080316071A1 (en) 2008-12-25
EP1792403A1 (en) 2007-06-06
CA2580388A1 (en) 2006-03-23
AR050743A1 (es) 2006-11-15
WO2006030359A1 (en) 2006-03-23
TW200627399A (en) 2006-08-01
KR20070054242A (ko) 2007-05-28

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