NL7612996A - Inrichting voor optische uitlezing van volgens een registratiespoor op een reflecterend opper- vlak van een registratiemedium opgenomen sig- naalinformatie. - Google Patents

Inrichting voor optische uitlezing van volgens een registratiespoor op een reflecterend opper- vlak van een registratiemedium opgenomen sig- naalinformatie.

Info

Publication number
NL7612996A
NL7612996A NL7612996A NL7612996A NL7612996A NL 7612996 A NL7612996 A NL 7612996A NL 7612996 A NL7612996 A NL 7612996A NL 7612996 A NL7612996 A NL 7612996A NL 7612996 A NL7612996 A NL 7612996A
Authority
NL
Netherlands
Prior art keywords
reflective surface
information recorded
signal information
optical reading
recorded according
Prior art date
Application number
NL7612996A
Other languages
English (en)
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of NL7612996A publication Critical patent/NL7612996A/nl

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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • 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
    • G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
    • 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
    • G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
    • G11B2007/0924—Skewed beams methods (using an angled beam, i.e. a beam which is reflected from the disc at an angle different from 90°)

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Automatic Focus Adjustment (AREA)
NL7612996A 1975-11-20 1976-11-22 Inrichting voor optische uitlezing van volgens een registratiespoor op een reflecterend opper- vlak van een registratiemedium opgenomen sig- naalinformatie. NL7612996A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50139525A JPS5922289B2 (ja) 1975-11-20 1975-11-20 ジヨウホウケンシユツソウチ

Publications (1)

Publication Number Publication Date
NL7612996A true NL7612996A (nl) 1977-05-24

Family

ID=15247305

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7612996A NL7612996A (nl) 1975-11-20 1976-11-22 Inrichting voor optische uitlezing van volgens een registratiespoor op een reflecterend opper- vlak van een registratiemedium opgenomen sig- naalinformatie.

Country Status (9)

Country Link
US (1) US4100577A (nl)
JP (1) JPS5922289B2 (nl)
AT (1) AT351816B (nl)
AU (1) AU507239B2 (nl)
CA (1) CA1098620A (nl)
DE (1) DE2652790C2 (nl)
FR (1) FR2332577A1 (nl)
GB (1) GB1543634A (nl)
NL (1) NL7612996A (nl)

Families Citing this family (52)

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JPS6044727B2 (ja) * 1977-09-02 1985-10-05 日本ビクター株式会社 フオ−カスサ−ボにおける媒体位置検出方式
JPS5439103A (en) * 1977-09-02 1979-03-26 Victor Co Of Japan Ltd Medium locator for fucus servo
US4358796A (en) * 1978-03-27 1982-11-09 Discovision Associates Spindle servo system for videodisc player
SE7813460L (sv) * 1978-03-27 1979-09-28 Mca Disco Vision Videoskivspelare
US4370679A (en) * 1978-03-27 1983-01-25 Discovision Associates Gain correction system for videodisc player apparatus
US4371899A (en) * 1978-03-27 1983-02-01 Discovision Associates Time base error correction system for player
US4310910A (en) * 1978-09-19 1982-01-12 Rca Corporation Optimal polarization for the optical readout of high density video recording
JPS6021403B2 (ja) * 1979-10-18 1985-05-27 日本ビクター株式会社 光学的記録装置における集光状態の監視装置
FR2483664B1 (fr) * 1980-05-28 1985-06-28 Thomson Csf Dispositif optique d'enregistrement-lecture sur un support d'informations et systeme de memoire optique comprenant un tel dispositif
US4443873A (en) * 1980-10-20 1984-04-17 Optical Coating Laboratory, Inc. Optical system for optical disc reader
US4376303A (en) * 1980-12-19 1983-03-08 Rca Corporation Quasi-zoom lens optical focus sensor
NL8101932A (nl) * 1981-04-21 1982-11-16 Philips Nv Inrichting voor het inschrijven en uitlezen van informatiesporen in een optische registratiedrager.
JPS57200912A (en) * 1981-06-04 1982-12-09 Pioneer Electronic Corp Information recording system
JPS57200960A (en) * 1981-06-04 1982-12-09 Pioneer Electronic Corp Recording and reproducing method and its device
US4449212A (en) * 1981-07-30 1984-05-15 Rca Corporation Multi-beam optical record and playback apparatus
US4459690A (en) * 1981-07-30 1984-07-10 Rca Corporation Multi-beam optical record and playback apparatus having an improved beam splitter
JPS5826336A (ja) * 1981-08-06 1983-02-16 Pioneer Electronic Corp 光磁気記録方式の記録再生装置
JPS58179904A (ja) * 1982-04-15 1983-10-21 Pioneer Electronic Corp 情報記録方式
JPS58194149A (ja) * 1982-05-08 1983-11-12 Asahi Optical Co Ltd 光学的記録担体からの情報読取り装置
JPS5971141A (ja) * 1982-10-14 1984-04-21 Mitsubishi Electric Corp 光学的信号読出し装置
JPS5914130U (ja) * 1983-04-30 1984-01-28 日本ビクター株式会社 フオ−カスサ−ボにおける媒体位置検出装置
JPS60131648A (ja) * 1983-12-19 1985-07-13 Toshiba Corp 光学ヘツド
US4694447A (en) * 1984-07-12 1987-09-15 International Business Machines Corp. Optical signal recorders employing two lasers and methods therefor
US4879707A (en) * 1985-07-30 1989-11-07 Laser Magnetic Storage International Company Optical disk tracking and seeking systems specific track formats using discontinuities
US4879708A (en) * 1985-07-30 1989-11-07 Laser Magnetic Storage International Company Optical disk tracking and seeking systems specific track formats using wobbled pits
US4959823A (en) * 1985-07-30 1990-09-25 Laser Magnetic Storage International Company Tracking and seeking system for use with an optical record carrier having a wobbled track format
ATE84631T1 (de) * 1985-07-30 1993-01-15 Philips Nv Generatorkreis fuer spursignal und aufzeichnungstraeger dafuer.
US4864552A (en) * 1986-08-29 1989-09-05 Laser Magnetic Storage International Company Driving signal for coarse servo employing sampled offset signal
JPS6371945A (ja) * 1986-09-13 1988-04-01 Omron Tateisi Electronics Co 光カ−ド記録再生装置
US4823220A (en) * 1987-11-16 1989-04-18 International Business Machines Corporation Detector for magnetooptic recorders
US5031166A (en) * 1988-01-25 1991-07-09 Laser Magnetic Storage International Company Optical disk tracking and seeking systems and specific track formats using discontinuities and circuitry therefor
JPH0273541A (ja) * 1988-09-08 1990-03-13 Matsushita Electric Ind Co Ltd 光ディスク製造方法
JP2591302B2 (ja) * 1990-09-26 1997-03-19 松下電器産業株式会社 フォーカスエラー検出装置
US6081487A (en) * 1998-02-13 2000-06-27 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, an apparatus for controlling laser positioning
US6088308A (en) * 1998-02-13 2000-07-11 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, a tracking circuit for providing positioning information
US6097677A (en) * 1998-02-13 2000-08-01 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, a method for combined writing and reading operations
US6108282A (en) * 1998-02-13 2000-08-22 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, an apparatus for multilayer laser source positioning
US6128262A (en) * 1998-02-13 2000-10-03 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, a method for customizing said media with timing information
US6111830A (en) * 1998-02-13 2000-08-29 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, an apparatus for determining linear and/or angular velocity
US6088306A (en) * 1998-02-13 2000-07-11 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, an apparatus for combined writing and reading operations
US6049512A (en) * 1998-02-13 2000-04-11 International Business Machines Corporation In a system for creating, reading and writing on rotatable information storage media, an apparatus for two-sided writing
US6118740A (en) * 1998-02-13 2000-09-12 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, a method for writing closely spaced information tracks
US6222813B1 (en) 1998-02-13 2001-04-24 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, an apparatus for controlling vertical laser alignment
US6088309A (en) * 1998-02-13 2000-07-11 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, a method for controlling vertical laser alignment
US6081489A (en) * 1998-02-13 2000-06-27 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, an apparatus for performing both read and write operations
US6232045B1 (en) 1998-02-13 2001-05-15 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, a method for producing a recording blank
US6097681A (en) * 1998-02-13 2000-08-01 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, an apparatus for determining angular position, θ
US6034929A (en) * 1998-02-13 2000-03-07 International Business Machines Corporation System for creating, reading and writing on rotatable information storage media, a method for multi-layer laser source positioning
US6322652B1 (en) * 1998-09-04 2001-11-27 3M Innovative Properties Company Method of making a patterned surface articles
KR100322599B1 (ko) 1998-12-23 2002-03-08 윤종용 광픽업장치
EP1696429B1 (en) * 2003-12-04 2011-10-12 Panasonic Corporation Optical information reproduction device
WO2005106863A1 (en) * 2004-04-30 2005-11-10 Koninklijke Philips Electronics N.V. Optical reader/writer with dedicated focus tracking beam

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR205243A1 (es) * 1972-05-11 1976-04-21 Philips Nv Aparato para la lectura de un portador de grabacion reflector plano
AR198680A1 (es) * 1972-09-02 1974-07-15 Philips Nv Aparato lector de un portador de grabacion sobre el cual esta grabada informacion en al menos una pista
US4027330A (en) * 1973-03-27 1977-05-31 Ted-Bildplatten Aktiengesellschaft, Aeg-Telefunken, Teldec Disc recording
NL7402504A (nl) * 1974-02-25 1975-08-27 Philips Nv Inrichting voor het langs optische weg uitlezen van een registratiedrager.
DE2445333A1 (de) * 1973-10-01 1975-04-10 Philips Nv Optoelektronisches system zur bestimmung einer abweichung zwischen der istlage und der sollage einer ebene in einem optischen abbildungssystem
NL7414776A (nl) * 1974-11-13 1976-05-17 Philips Nv Inrichting voor het uitlezen van een registra- tiedrager met een optische informatiestruktuur.
NL182257C (nl) * 1974-12-23 1988-02-01 Philips Nv Inrichting voor het uitlezen van een vlakke reflekterende registratiedrager waarop informatie is aangebracht in een optisch uitleesbare struktuur.

Also Published As

Publication number Publication date
JPS5263614A (en) 1977-05-26
AU1974776A (en) 1978-05-25
AU507239B2 (en) 1980-02-07
FR2332577A1 (fr) 1977-06-17
AT351816B (de) 1979-08-10
GB1543634A (en) 1979-04-04
CA1098620A (en) 1981-03-31
DE2652790A1 (de) 1977-06-02
JPS5922289B2 (ja) 1984-05-25
ATA867376A (de) 1979-01-15
US4100577A (en) 1978-07-11
DE2652790C2 (de) 1986-08-07
FR2332577B1 (nl) 1978-12-29

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed