HK1008608A1 - Spare and calibration sector management for optical worm media - Google Patents

Spare and calibration sector management for optical worm media

Info

Publication number
HK1008608A1
HK1008608A1 HK98109358A HK98109358A HK1008608A1 HK 1008608 A1 HK1008608 A1 HK 1008608A1 HK 98109358 A HK98109358 A HK 98109358A HK 98109358 A HK98109358 A HK 98109358A HK 1008608 A1 HK1008608 A1 HK 1008608A1
Authority
HK
Hong Kong
Prior art keywords
spare
sector management
worm media
calibration sector
optical worm
Prior art date
Application number
HK98109358A
Other languages
English (en)
Inventor
John Edward Kulakowski
Judson Allen Mcdowell
Kurt Allan Rubin
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 HK1008608A1 publication Critical patent/HK1008608A1/xx

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1883—Methods for assignment of alternate areas for defective areas
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G11B7/1267—Power calibration
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10595—Control of operating function
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
HK98109358A 1995-03-31 1998-07-23 Spare and calibration sector management for optical worm media HK1008608A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/414,825 US5548572A (en) 1995-03-31 1995-03-31 Spare and calibration sector management for optical WORM media
PCT/GB1995/002858 WO1996030902A1 (en) 1995-03-31 1995-12-07 Spare and calibration sector management for optical worm media

Publications (1)

Publication Number Publication Date
HK1008608A1 true HK1008608A1 (en) 1999-07-16

Family

ID=23643133

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98109358A HK1008608A1 (en) 1995-03-31 1998-07-23 Spare and calibration sector management for optical worm media

Country Status (11)

Country Link
US (1) US5548572A (xx)
EP (1) EP0818041B1 (xx)
JP (1) JP3871229B2 (xx)
KR (1) KR100262808B1 (xx)
CN (1) CN1097817C (xx)
CA (1) CA2168286C (xx)
DE (1) DE69511730T2 (xx)
HK (1) HK1008608A1 (xx)
MY (1) MY116502A (xx)
TW (1) TW283232B (xx)
WO (1) WO1996030902A1 (xx)

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Also Published As

Publication number Publication date
CN1181153A (zh) 1998-05-06
DE69511730T2 (de) 2000-04-06
US5548572A (en) 1996-08-20
TW283232B (en) 1996-08-11
JPH08279155A (ja) 1996-10-22
CA2168286C (en) 2000-07-18
DE69511730D1 (de) 1999-09-30
JP3871229B2 (ja) 2007-01-24
CN1097817C (zh) 2003-01-01
CA2168286A1 (en) 1996-10-01
KR100262808B1 (ko) 2000-08-01
EP0818041B1 (en) 1999-08-25
EP0818041A1 (en) 1998-01-14
MY116502A (en) 2004-02-28
KR19980701793A (ko) 1998-06-25
WO1996030902A1 (en) 1996-10-03

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20091207