HK77796A - Method and apparatus for compensating the off-set voltage of a controlling amplifier - Google Patents

Method and apparatus for compensating the off-set voltage of a controlling amplifier

Info

Publication number
HK77796A
HK77796A HK77796A HK77796A HK77796A HK 77796 A HK77796 A HK 77796A HK 77796 A HK77796 A HK 77796A HK 77796 A HK77796 A HK 77796A HK 77796 A HK77796 A HK 77796A
Authority
HK
Hong Kong
Prior art keywords
control
control circuit
order
set voltage
data
Prior art date
Application number
HK77796A
Other languages
English (en)
Inventor
Dieter Baas
Original Assignee
Thomson Brandt Gmbh
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 Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of HK77796A publication Critical patent/HK77796A/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
    • G11B7/09—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
    • 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
    • G11B7/094—Methods and circuits for servo offset compensation
    • 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
    • G11B7/0908—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 for focusing only
HK77796A 1987-09-30 1996-05-02 Method and apparatus for compensating the off-set voltage of a controlling amplifier HK77796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873732924 DE3732924A1 (de) 1987-09-30 1987-09-30 Geraet zur wiedergabe von daten

Publications (1)

Publication Number Publication Date
HK77796A true HK77796A (en) 1996-05-10

Family

ID=6337207

Family Applications (1)

Application Number Title Priority Date Filing Date
HK77796A HK77796A (en) 1987-09-30 1996-05-02 Method and apparatus for compensating the off-set voltage of a controlling amplifier

Country Status (12)

Country Link
US (1) US4924454A (xx)
EP (1) EP0309705B1 (xx)
JP (1) JP2771187B2 (xx)
KR (1) KR960013488B1 (xx)
AT (1) ATE78117T1 (xx)
DE (2) DE3732924A1 (xx)
DK (1) DK547888A (xx)
ES (1) ES2034063T3 (xx)
GR (1) GR3005800T3 (xx)
HK (1) HK77796A (xx)
HU (1) HU203606B (xx)
MY (1) MY103778A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016992A (en) * 1989-03-16 1991-05-21 Forschungszentrum Julich Gmbh Method of and apparatus for the reading of magnetically stored information
EP0895228A3 (en) * 1997-07-31 1999-11-24 THOMSON multimedia S.A. A tracking system for optical storage media
DE102006045415A1 (de) * 2006-09-26 2008-04-03 Infineon Technologies Ag Bauelementanordnung mit einem Träger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232201A (en) * 1978-11-24 1980-11-04 Mca Discovision, Inc. Dithered center tracking system
JPS5853030A (ja) * 1981-09-22 1983-03-29 Mitsubishi Electric Corp 光学再生装置の追跡装置
JPS5873023A (ja) * 1981-10-27 1983-05-02 Pioneer Electronic Corp 情報読取装置におけるトラツキングサ−ボ信号発生装置
JPS6061925A (ja) * 1983-09-14 1985-04-09 Ricoh Co Ltd 光情報記録再生装置
JPS60195745A (ja) * 1984-03-16 1985-10-04 Pioneer Electronic Corp トラツキングサ−ボ信号生成方式
JPS6378386A (ja) * 1986-09-19 1988-04-08 Pioneer Electronic Corp 微調サ−ボ装置におけるオフセツト補償回路

Also Published As

Publication number Publication date
KR960013488B1 (ko) 1996-10-05
DK547888A (da) 1989-03-31
US4924454A (en) 1990-05-08
DE3872638D1 (de) 1992-08-13
ATE78117T1 (de) 1992-07-15
MY103778A (en) 1993-09-30
GR3005800T3 (xx) 1993-06-07
EP0309705B1 (de) 1992-07-08
HU203606B (en) 1991-08-28
KR890005684A (ko) 1989-05-16
HUT51784A (en) 1990-05-28
JP2771187B2 (ja) 1998-07-02
JPH01113923A (ja) 1989-05-02
EP0309705A1 (de) 1989-04-05
DE3732924A1 (de) 1989-04-13
DK547888D0 (da) 1988-09-30
ES2034063T3 (es) 1993-04-01

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20080811