IT1137118B - Dispositivo di pedinamento di piste di piste di informazione per l'impiego in un cosiddetto disco compatto - Google Patents

Dispositivo di pedinamento di piste di piste di informazione per l'impiego in un cosiddetto disco compatto

Info

Publication number
IT1137118B
IT1137118B IT20850/81A IT2085081A IT1137118B IT 1137118 B IT1137118 B IT 1137118B IT 20850/81 A IT20850/81 A IT 20850/81A IT 2085081 A IT2085081 A IT 2085081A IT 1137118 B IT1137118 B IT 1137118B
Authority
IT
Italy
Prior art keywords
track
device information
compact disk
walking device
called compact
Prior art date
Application number
IT20850/81A
Other languages
English (en)
Other versions
IT8120850A0 (it
Inventor
Ulrich Gross
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of IT8120850A0 publication Critical patent/IT8120850A0/it
Application granted granted Critical
Publication of IT1137118B publication Critical patent/IT1137118B/it

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
IT20850/81A 1980-04-03 1981-03-31 Dispositivo di pedinamento di piste di piste di informazione per l'impiego in un cosiddetto disco compatto IT1137118B (it)

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
IT8120850A0 IT8120850A0 (it) 1981-03-31
IT1137118B true IT1137118B (it) 1986-09-03

Family

ID=19835109

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20850/81A IT1137118B (it) 1980-04-03 1981-03-31 Dispositivo di pedinamento di piste di piste di informazione per l'impiego in un cosiddetto disco compatto

Country Status (11)

Country Link
US (1) US4359635A (it)
JP (1) JPS56156973A (it)
AT (1) AT370900B (it)
AU (1) AU536041B2 (it)
CA (1) CA1169148A (it)
DE (1) DE3111714A1 (it)
ES (1) ES8202648A1 (it)
FR (1) FR2480016A1 (it)
GB (1) GB2073452B (it)
IT (1) IT1137118B (it)
NL (1) NL8001974A (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6215864Y2 (it) * 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 (it) * 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 (it) * 1973-04-12 1974-12-11
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
NL7315419A (nl) * 1973-11-10 1975-05-13 Philips Nv Inrichting voor het uitlezen van een schijfvor- mige registratiedrager.
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
US4359635A (en) 1982-11-16
DE3111714C2 (it) 1990-08-02
AU6898181A (en) 1981-10-08
IT8120850A0 (it) 1981-03-31
DE3111714A1 (de) 1982-02-11
FR2480016A1 (fr) 1981-10-09
GB2073452B (en) 1984-02-01
JPS56156973A (en) 1981-12-03
ES500964A0 (es) 1982-02-01
CA1169148A (en) 1984-06-12
GB2073452A (en) 1981-10-14
ATA152181A (de) 1982-09-15
FR2480016B1 (it) 1985-03-01
AU536041B2 (en) 1984-04-12
AT370900B (de) 1983-05-10
ES8202648A1 (es) 1982-02-01
JPS645387B2 (it) 1989-01-30
NL8001974A (nl) 1981-11-02

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940531