HK1073012A1 - Calibrating a fine actuator using a reference pattern on a trackless optical disc surface - Google Patents

Calibrating a fine actuator using a reference pattern on a trackless optical disc surface

Info

Publication number
HK1073012A1
HK1073012A1 HK05104690A HK05104690A HK1073012A1 HK 1073012 A1 HK1073012 A1 HK 1073012A1 HK 05104690 A HK05104690 A HK 05104690A HK 05104690 A HK05104690 A HK 05104690A HK 1073012 A1 HK1073012 A1 HK 1073012A1
Authority
HK
Hong Kong
Prior art keywords
calibrating
optical disc
reference pattern
disc surface
fine actuator
Prior art date
Application number
HK05104690A
Other languages
English (en)
Inventor
Darwin Mitchel Hanks
Original Assignee
Hewlett Packard Development Co
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 Hewlett Packard Development Co filed Critical Hewlett Packard Development Co
Publication of HK1073012A1 publication Critical patent/HK1073012A1/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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners
    • G11B7/08588—Sled-type positioners with position sensing by means of an auxiliary system using an external scale
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/28—Speed controlling, regulating, or indicating
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/42—Marks for indexing, speed-controlling, synchronising, or timing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
HK05104690A 2003-09-12 2005-06-03 Calibrating a fine actuator using a reference pattern on a trackless optical disc surface HK1073012A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/661,333 US7219840B2 (en) 2003-01-17 2003-09-12 Calibrating fine actuator using a reference pattern

Publications (1)

Publication Number Publication Date
HK1073012A1 true HK1073012A1 (en) 2005-09-16

Family

ID=34136790

Family Applications (1)

Application Number Title Priority Date Filing Date
HK05104690A HK1073012A1 (en) 2003-09-12 2005-06-03 Calibrating a fine actuator using a reference pattern on a trackless optical disc surface

Country Status (10)

Country Link
US (1) US7219840B2 (de)
EP (1) EP1515318B1 (de)
JP (1) JP4150708B2 (de)
KR (1) KR100488329B1 (de)
CN (1) CN100555426C (de)
DE (1) DE602004000966T2 (de)
HK (1) HK1073012A1 (de)
MY (1) MY142495A (de)
SG (1) SG110112A1 (de)
TW (1) TWI277958B (de)

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Also Published As

Publication number Publication date
TW200511237A (en) 2005-03-16
EP1515318A1 (de) 2005-03-16
JP2005093052A (ja) 2005-04-07
KR20050027048A (ko) 2005-03-17
KR100488329B1 (ko) 2005-05-11
CN100555426C (zh) 2009-10-28
DE602004000966T2 (de) 2007-05-03
US7219840B2 (en) 2007-05-22
DE602004000966D1 (de) 2006-06-29
TWI277958B (en) 2007-04-01
SG110112A1 (en) 2005-04-28
MY142495A (en) 2010-11-30
EP1515318B1 (de) 2006-05-24
US20040141046A1 (en) 2004-07-22
CN1595510A (zh) 2005-03-16
JP4150708B2 (ja) 2008-09-17

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Legal Events

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

Effective date: 20150716