FR2480016B1 - - Google Patents

Info

Publication number
FR2480016B1
FR2480016B1 FR8106532A FR8106532A FR2480016B1 FR 2480016 B1 FR2480016 B1 FR 2480016B1 FR 8106532 A FR8106532 A FR 8106532A FR 8106532 A FR8106532 A FR 8106532A FR 2480016 B1 FR2480016 B1 FR 2480016B1
Authority
FR
France
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.)
Expired
Application number
FR8106532A
Other versions
FR2480016A1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2480016A1 publication Critical patent/FR2480016A1/fr
Application granted granted Critical
Publication of FR2480016B1 publication Critical patent/FR2480016B1/fr
Granted legal-status Critical Current

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
    • G11B7/0946—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 operation during external perturbations not related to the carrier or servo beam, e.g. vibration
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
FR8106532A 1980-04-03 1981-04-01 Dispositif de poursuite de piste d'information sur disque Granted FR2480016A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8001974A NL8001974A (nl) 1980-04-03 1980-04-03 Spoorvolginrichting.

Publications (2)

Publication Number Publication Date
FR2480016A1 FR2480016A1 (fr) 1981-10-09
FR2480016B1 true FR2480016B1 (fr) 1985-03-01

Family

ID=19835109

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8106532A Granted FR2480016A1 (fr) 1980-04-03 1981-04-01 Dispositif de poursuite de piste d'information sur disque

Country Status (11)

Country Link
US (1) US4359635A (fr)
JP (1) JPS56156973A (fr)
AT (1) AT370900B (fr)
AU (1) AU536041B2 (fr)
CA (1) CA1169148A (fr)
DE (1) DE3111714A1 (fr)
ES (1) ES500964A0 (fr)
FR (1) FR2480016A1 (fr)
GB (1) GB2073452B (fr)
IT (1) IT1137118B (fr)
NL (1) NL8001974A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6215864Y2 (fr) * 1980-08-04 1987-04-22
JPS589227A (ja) * 1981-07-07 1983-01-19 Mitsubishi Electric Corp 光学的サ−ボ装置
JPS5810275U (ja) * 1981-07-15 1983-01-22 パイオニア株式会社 情報記録領域の検出装置
JPS5841447A (ja) * 1981-09-04 1983-03-10 Hitachi Ltd 光スポット制御信号検出方法
NL8200208A (nl) * 1982-01-21 1983-08-16 Philips Nv Inrichting voor het uitlezen van een schijfvormige registratiedrager.
JPS58143472A (ja) * 1982-02-22 1983-08-26 Hitachi Ltd 記録情報再生装置のトラツキングサ−ボ制御装置
JPS58169350A (ja) * 1982-03-31 1983-10-05 Hitachi Ltd 光学的情報記録再生装置
AU575332B2 (en) * 1983-07-29 1988-07-28 Sony Corporation Optical disk pick-up
JPS60154358A (ja) * 1984-01-20 1985-08-14 Pioneer Electronic Corp 記録情報再生装置
JPH07101532B2 (ja) * 1986-03-20 1995-11-01 ソニー株式会社 トラツキング制御装置
NL8602911A (nl) * 1986-11-17 1988-06-16 Philips Nv Inrichting voor het inschrijven en/of uitlezen van informatie in respektievelijk uit een schijfvormige registratiedrager.
NL8802435A (nl) * 1988-10-05 1990-05-01 Philips Nv Inrichting voor het aftasten van een registratiedrager, alsmede een regelschakeling voor toepassing in een dergelijke inrichting.
JPH02133882U (fr) * 1989-04-10 1990-11-07

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL173343C (nl) * 1972-03-29 1984-01-02 Philips Nv Inrichting voor het uitlezen van een schijfvormige registratiedrager met in optische vorm gecodeerde beeld-en/of geluidssignalen.
JPS49129511A (fr) * 1973-04-12 1974-12-11
NL7315419A (nl) * 1973-11-10 1975-05-13 Philips Nv Inrichting voor het uitlezen van een schijfvor- mige registratiedrager.
US4037252A (en) * 1973-11-10 1977-07-19 U.S. Philips Corporation Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking
GB1503972A (en) * 1975-07-24 1978-03-15 Ibm Data storage apparatus
JPS52145006A (en) * 1976-05-27 1977-12-02 Mitsubishi Electric Corp Highly densed recording signals reproduction device
JPS52145005A (en) * 1976-05-27 1977-12-02 Mitsubishi Electric Corp Highly densed recording signals reproduction device
JPS54125010A (en) * 1978-03-22 1979-09-28 Mitsubishi Electric Corp Magnetic disc apparatus
JPS6034144Y2 (ja) * 1978-07-12 1985-10-11 富士通株式会社 磁気ヘツド位置決め装置
JPS5680878A (en) * 1979-12-05 1981-07-02 Nec Corp Magnetic bubble storage device

Also Published As

Publication number Publication date
IT8120850A0 (it) 1981-03-31
NL8001974A (nl) 1981-11-02
CA1169148A (fr) 1984-06-12
FR2480016A1 (fr) 1981-10-09
GB2073452B (en) 1984-02-01
DE3111714A1 (de) 1982-02-11
ATA152181A (de) 1982-09-15
AT370900B (de) 1983-05-10
ES8202648A1 (es) 1982-02-01
ES500964A0 (es) 1982-02-01
GB2073452A (en) 1981-10-14
US4359635A (en) 1982-11-16
AU536041B2 (en) 1984-04-12
DE3111714C2 (fr) 1990-08-02
JPS56156973A (en) 1981-12-03
IT1137118B (it) 1986-09-03
JPS645387B2 (fr) 1989-01-30
AU6898181A (en) 1981-10-08

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Legal Events

Date Code Title Description
ST Notification of lapse