WO2004039089A3 - Two-dimentional coding for high-density storage media applicatio ns - Google Patents

Two-dimentional coding for high-density storage media applicatio ns Download PDF

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Publication number
WO2004039089A3
WO2004039089A3 PCT/US2003/033344 US0333344W WO2004039089A3 WO 2004039089 A3 WO2004039089 A3 WO 2004039089A3 US 0333344 W US0333344 W US 0333344W WO 2004039089 A3 WO2004039089 A3 WO 2004039089A3
Authority
WO
WIPO (PCT)
Prior art keywords
transition widths
applicatio
storage media
bit stream
density storage
Prior art date
Application number
PCT/US2003/033344
Other languages
French (fr)
Other versions
WO2004039089A2 (en
Inventor
Chandra Mohan
Original Assignee
Atlinks Usa Inc
Chandra Mohan
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 Atlinks Usa Inc, Chandra Mohan filed Critical Atlinks Usa Inc
Priority to AU2003282972A priority Critical patent/AU2003282972A1/en
Publication of WO2004039089A2 publication Critical patent/WO2004039089A2/en
Publication of WO2004039089A3 publication Critical patent/WO2004039089A3/en

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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
    • H03M5/06—Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell
    • H03M5/08—Code representation by pulse width
    • 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

Abstract

There is provided a method for encoding a random bit stream in two-dimensions for storage on a storage medium. The random bit stream is encoded (3310) using Variable Aperture Coding (VAC) so as to generate a constant amplitude, varying pulse-width encoding that represents the random bit stream by a plurality of pulses separated using only transition widths included in a pre-specified set of transition widths. The encoding step includes the step of translating (step 3315) other pre-specified transition widths as amplitude combinations of the transition widths included in the pre-specified set of transition widths.
PCT/US2003/033344 2002-10-21 2003-10-21 Two-dimentional coding for high-density storage media applicatio ns WO2004039089A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003282972A AU2003282972A1 (en) 2002-10-21 2003-10-21 Two-dimentional coding for high-density storage media applicatio ns

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42001902P 2002-10-21 2002-10-21
US60/420,019 2002-10-21

Publications (2)

Publication Number Publication Date
WO2004039089A2 WO2004039089A2 (en) 2004-05-06
WO2004039089A3 true WO2004039089A3 (en) 2004-07-01

Family

ID=32176501

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/033344 WO2004039089A2 (en) 2002-10-21 2003-10-21 Two-dimentional coding for high-density storage media applicatio ns

Country Status (2)

Country Link
AU (1) AU2003282972A1 (en)
WO (1) WO2004039089A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8885275B1 (en) 2013-12-18 2014-11-11 HGST Netherlands B.V. System and method for ATI/FTI detection in magnetic media
US9218847B2 (en) 2013-12-18 2015-12-22 HGST Netherlands B.V. System and method for testing data storage systems utilizing micro-transitions
US9886979B1 (en) 2016-12-30 2018-02-06 Western Digital Technologies, Inc. Implementing BER-list modulation code for hard disk drives

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490091A (en) * 1994-03-01 1996-02-06 Guzik Technical Enterprises, Inc. Histograms of processed noise samples for measuring error rate of a PRML data detection channel
WO1999046861A1 (en) * 1998-03-11 1999-09-16 Thomson Licensing S.A. Digital signal modulation system
US6055119A (en) * 1997-02-21 2000-04-25 Samsung Electronics Co., Ltd. Adaptive signal processing method and circuit for a digital recording/reproducing apparatus
US6359525B1 (en) * 2000-07-25 2002-03-19 Thomson Licensing S.A. Modulation technique for transmitting multiple high data rate signals through a band limited channel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490091A (en) * 1994-03-01 1996-02-06 Guzik Technical Enterprises, Inc. Histograms of processed noise samples for measuring error rate of a PRML data detection channel
US6055119A (en) * 1997-02-21 2000-04-25 Samsung Electronics Co., Ltd. Adaptive signal processing method and circuit for a digital recording/reproducing apparatus
WO1999046861A1 (en) * 1998-03-11 1999-09-16 Thomson Licensing S.A. Digital signal modulation system
US6359525B1 (en) * 2000-07-25 2002-03-19 Thomson Licensing S.A. Modulation technique for transmitting multiple high data rate signals through a band limited channel

Also Published As

Publication number Publication date
WO2004039089A2 (en) 2004-05-06
AU2003282972A1 (en) 2004-05-13
AU2003282972A8 (en) 2004-05-13

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