AU2002236835A1 - Spin motor control in an optical drive - Google Patents

Spin motor control in an optical drive

Info

Publication number
AU2002236835A1
AU2002236835A1 AU2002236835A AU2002236835A AU2002236835A1 AU 2002236835 A1 AU2002236835 A1 AU 2002236835A1 AU 2002236835 A AU2002236835 A AU 2002236835A AU 2002236835 A AU2002236835 A AU 2002236835A AU 2002236835 A1 AU2002236835 A1 AU 2002236835A1
Authority
AU
Australia
Prior art keywords
motor control
optical drive
spin motor
spin
optical
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.)
Abandoned
Application number
AU2002236835A
Inventor
Christopher J. Turner
Charles R. Watt
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.)
DataPlay Inc
Original Assignee
DataPlay Inc
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
Priority claimed from US09/951,328 external-priority patent/US6754151B2/en
Priority claimed from US09/951,869 external-priority patent/US6876609B2/en
Priority claimed from US09/951,475 external-priority patent/US7079459B2/en
Priority claimed from US09/951,325 external-priority patent/US6898170B2/en
Priority claimed from US09/951,930 external-priority patent/US6704261B2/en
Priority claimed from US09/951,330 external-priority patent/US6901040B2/en
Priority claimed from US09/951,108 external-priority patent/US7065018B2/en
Application filed by DataPlay Inc filed Critical DataPlay Inc
Publication of AU2002236835A1 publication Critical patent/AU2002236835A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head
    • G11B19/247—Arrangements for providing constant relative speed between record carrier and head using electrical means
    • 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
    • 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
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • 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
    • G11B7/0938—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 servo format, e.g. guide tracks, pilot signals
    • 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
    • G11B7/0948—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 specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
AU2002236835A 2001-01-25 2002-01-18 Spin motor control in an optical drive Abandoned AU2002236835A1 (en)

Applications Claiming Priority (17)

Application Number Priority Date Filing Date Title
US26435101P 2001-01-25 2001-01-25
US60/264,351 2001-01-25
US09/951,328 US6754151B2 (en) 2001-01-25 2001-09-10 BEMF timing system
US09/951,869 US6876609B2 (en) 2001-01-25 2001-09-10 System and method for controlling a spin motor
US09/951,930 2001-09-10
US09/951,869 2001-09-10
US09/951,325 2001-09-10
US09/951,475 US7079459B2 (en) 2001-01-25 2001-09-10 System and method for performing a spin motor startup operation
US09/951,475 2001-09-10
US09/951,325 US6898170B2 (en) 2001-01-25 2001-09-10 PMAD/PSA digital feedback system
US09/951,930 US6704261B2 (en) 2001-01-25 2001-09-10 Spin motor control in an optical drive
US09/951,330 2001-09-10
US09/951,108 2001-09-10
US09/951,330 US6901040B2 (en) 2001-01-25 2001-09-10 Kp and Ki lookup system and method
US09/951,328 2001-09-10
US09/951,108 US7065018B2 (en) 2001-01-25 2001-09-10 CLV system and method using PSA lookup
PCT/US2002/001841 WO2002059893A2 (en) 2001-01-25 2002-01-18 Spin motor control in an optical drive

Publications (1)

Publication Number Publication Date
AU2002236835A1 true AU2002236835A1 (en) 2002-08-06

Family

ID=27575304

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002236835A Abandoned AU2002236835A1 (en) 2001-01-25 2002-01-18 Spin motor control in an optical drive

Country Status (2)

Country Link
AU (1) AU2002236835A1 (en)
WO (1) WO2002059893A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1886309B1 (en) 2005-05-30 2009-01-21 Thomson Licensing Compact pickup for micro optical drive
EP1729294A1 (en) * 2005-05-30 2006-12-06 Deutsche Thomson-Brandt Gmbh Compact pickup for micro optical drive

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6196583A (en) * 1984-10-17 1986-05-15 Sony Corp Disk recording and reproducing device

Also Published As

Publication number Publication date
WO2002059893A2 (en) 2002-08-01
WO2002059893A3 (en) 2002-10-03

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase