JPS5293222A - Recording medium reader - Google Patents

Recording medium reader

Info

Publication number
JPS5293222A
JPS5293222A JP686777A JP686777A JPS5293222A JP S5293222 A JPS5293222 A JP S5293222A JP 686777 A JP686777 A JP 686777A JP 686777 A JP686777 A JP 686777A JP S5293222 A JPS5293222 A JP S5293222A
Authority
JP
Japan
Prior art keywords
recording medium
medium reader
reader
recording
medium
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.)
Granted
Application number
JP686777A
Other languages
English (en)
Other versions
JPS5630610B2 (ja
Inventor
Yohanesu Maria Buraat Yozefusu
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 JPS5293222A publication Critical patent/JPS5293222A/ja
Publication of JPS5630610B2 publication Critical patent/JPS5630610B2/ja
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
    • G11B7/0901—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 track following only
    • G11B7/0906—Differential phase difference systems
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
    • G11B11/1053—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed to compensate for the magnetic domain drift or time shift
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532—Heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/7605—Television signal recording on discs or drums

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Holo Graphy (AREA)
JP686777A 1976-01-28 1977-01-26 Recording medium reader Granted JPS5293222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7600842,A NL182258C (nl) 1976-01-28 1976-01-28 Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestructuur.

Publications (2)

Publication Number Publication Date
JPS5293222A true JPS5293222A (en) 1977-08-05
JPS5630610B2 JPS5630610B2 (ja) 1981-07-16

Family

ID=19825526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP686777A Granted JPS5293222A (en) 1976-01-28 1977-01-26 Recording medium reader

Country Status (21)

Country Link
JP (1) JPS5293222A (ja)
AR (1) AR211720A1 (ja)
AT (1) AT349231B (ja)
AU (1) AU505466B2 (ja)
BE (1) BE850781A (ja)
BR (1) BR7700452A (ja)
CA (1) CA1094684A (ja)
CH (1) CH613797A5 (ja)
DE (1) DE2701539C2 (ja)
DK (1) DK146106C (ja)
ES (1) ES455360A1 (ja)
FR (1) FR2339928A1 (ja)
GB (1) GB1534381A (ja)
IT (1) IT1074335B (ja)
MX (1) MX143161A (ja)
NL (1) NL182258C (ja)
NO (1) NO149188C (ja)
NZ (1) NZ183152A (ja)
PL (1) PL107679B1 (ja)
SE (2) SE408238B (ja)
ZA (1) ZA7711B (ja)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55947A (en) * 1978-06-19 1980-01-07 Pioneer Video Corp Servo unit of optical information reader
JPS573236A (en) * 1980-06-10 1982-01-08 Olympus Optical Co Ltd Optical information reader
WO1983004331A1 (en) * 1982-05-31 1983-12-08 Sony Corporation Optical head control signal generator
JPS5922242A (ja) * 1982-07-26 1984-02-04 Foster Denki Kk 情報再生装置における光学系制御信号検出回路
JPS59110045A (ja) * 1982-12-13 1984-06-25 Sanyo Electric Co Ltd 光学式ピツクアツプ装置
JPS59198540A (ja) * 1983-04-26 1984-11-10 Asahi Optical Co Ltd 光学式デイスクプレ−ヤのトラツキングサ−ボ回路
JPS61248237A (ja) * 1985-04-25 1986-11-05 Sankyo Seiki Mfg Co Ltd トラツキング誤差信号検出方法
JPS6292185A (ja) * 1985-10-17 1987-04-27 Seiko Instr & Electronics Ltd トラツキングエラ−信号発生回路
JPS62110631A (ja) * 1985-11-08 1987-05-21 Seiko Instr & Electronics Ltd トラツキングエラ−信号発生回路
JPS62239331A (ja) * 1986-04-09 1987-10-20 Seiko Instr & Electronics Ltd 光学ヘツド制御装置
US4740940A (en) * 1985-03-11 1988-04-26 Matsushita Electric Industrial Co., Ltd. Optical information read apparatus
EP0686968A2 (en) 1994-06-07 1995-12-13 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, optical information recording method, and optical information reproducing apparatus
US5986999A (en) * 1996-04-25 1999-11-16 Kabushiki Kaisha Toshiba Tracking control device in an optical information reproducing device and method of tracking control
US6339567B1 (en) 1998-01-16 2002-01-15 Mitsubishi Denki Kabushiki Kaisha Method of and apparatus for optical information reproduction
US7952966B2 (en) 2006-11-16 2011-05-31 Panasonic Corporation Tracking apparatus for optical information reproduction apparatus

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57111837A (en) * 1980-12-27 1982-07-12 Olympus Optical Co Ltd Signal detecting system of optical information reader
JPS5891538A (ja) * 1981-11-25 1983-05-31 Hitachi Ltd 光デイスクトラツク追跡装置
US4564929A (en) * 1981-11-25 1986-01-14 Hitachi, Ltd. Information recording and reproducing apparatus with tracking control by sampling
NL8105347A (nl) * 1981-11-26 1983-06-16 Philips Nv Inrichting voor het optisch aftasten van een schijfvormige registratiedrager.
NL8105346A (ja) * 1981-11-26 1983-06-16
JPS58125242A (ja) * 1982-01-22 1983-07-26 Victor Co Of Japan Ltd 光学的情報信号再生装置のトラツキング誤差検出方式
JPS58150145A (ja) * 1982-03-03 1983-09-06 Toshiba Corp 光学式デジタルデイスクプレ−ヤのトラツキング制御回路
JPS59191144A (ja) * 1983-04-14 1984-10-30 Sony Corp 光ピツクアツプのトラツキングサ−ボ回路
US4958245A (en) * 1988-04-07 1990-09-18 Insite Peripherals, Inc. Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities
DE19723542A1 (de) 1997-06-05 1998-12-10 Thomson Brandt Gmbh Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381086A (en) * 1962-08-16 1968-04-30 Minnesota Mining & Mfg Reproduction of television signals from photographic disc recordings
FR2235354A1 (en) * 1973-06-29 1975-01-24 Thomson Csf Photoelectric optical test sensor - measures displacement of a diffraction screen with constant spacing in the test sensor plane

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6038771B2 (ja) * 1978-06-19 1985-09-03 パイオニア株式会社 光学式情報読取装置のサ−ボ装置
JPS55947A (en) * 1978-06-19 1980-01-07 Pioneer Video Corp Servo unit of optical information reader
JPS573236A (en) * 1980-06-10 1982-01-08 Olympus Optical Co Ltd Optical information reader
JPH0146925B2 (ja) * 1980-06-10 1989-10-11 Olympus Optical Co
WO1983004331A1 (en) * 1982-05-31 1983-12-08 Sony Corporation Optical head control signal generator
JPS5922242A (ja) * 1982-07-26 1984-02-04 Foster Denki Kk 情報再生装置における光学系制御信号検出回路
JPS59110045A (ja) * 1982-12-13 1984-06-25 Sanyo Electric Co Ltd 光学式ピツクアツプ装置
JPS59198540A (ja) * 1983-04-26 1984-11-10 Asahi Optical Co Ltd 光学式デイスクプレ−ヤのトラツキングサ−ボ回路
US4740940A (en) * 1985-03-11 1988-04-26 Matsushita Electric Industrial Co., Ltd. Optical information read apparatus
JPS61248237A (ja) * 1985-04-25 1986-11-05 Sankyo Seiki Mfg Co Ltd トラツキング誤差信号検出方法
JPS6292185A (ja) * 1985-10-17 1987-04-27 Seiko Instr & Electronics Ltd トラツキングエラ−信号発生回路
JPS62110631A (ja) * 1985-11-08 1987-05-21 Seiko Instr & Electronics Ltd トラツキングエラ−信号発生回路
JPS62239331A (ja) * 1986-04-09 1987-10-20 Seiko Instr & Electronics Ltd 光学ヘツド制御装置
EP0686968A2 (en) 1994-06-07 1995-12-13 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, optical information recording method, and optical information reproducing apparatus
US5790487A (en) * 1994-06-07 1998-08-04 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, optical information recording method, and optical information reproducing apparatus utilizing the same
US5850379A (en) * 1994-06-07 1998-12-15 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, optical information recording method, and optical information reproducing apparatus utilizing the same
US5986999A (en) * 1996-04-25 1999-11-16 Kabushiki Kaisha Toshiba Tracking control device in an optical information reproducing device and method of tracking control
US6339567B1 (en) 1998-01-16 2002-01-15 Mitsubishi Denki Kabushiki Kaisha Method of and apparatus for optical information reproduction
US7952966B2 (en) 2006-11-16 2011-05-31 Panasonic Corporation Tracking apparatus for optical information reproduction apparatus

Also Published As

Publication number Publication date
AT349231B (de) 1979-03-26
ZA7711B (en) 1978-08-30
NL182258C (nl) 1988-02-01
NO770240L (no) 1977-07-29
BR7700452A (pt) 1977-10-04
MX143161A (es) 1981-03-26
NL182258B (nl) 1987-09-01
SE408238B (sv) 1979-05-21
NO149188B (no) 1983-11-21
IT1074335B (it) 1985-04-20
DK146106B (da) 1983-06-27
AR211720A1 (es) 1978-02-28
JPS5630610B2 (ja) 1981-07-16
FR2339928B1 (ja) 1980-03-21
NO149188C (no) 1984-02-29
ATA46077A (de) 1978-08-15
AU505466B2 (en) 1979-11-22
NZ183152A (en) 1980-04-28
CH613797A5 (en) 1979-10-15
GB1534381A (en) 1978-12-06
DK30777A (da) 1977-07-29
PL107679B1 (pl) 1980-02-29
FR2339928A1 (fr) 1977-08-26
CA1094684A (en) 1981-01-27
BE850781A (fr) 1977-07-26
DE2701539C2 (de) 1981-11-12
DK146106C (da) 1983-11-21
AU2161677A (en) 1978-08-03
DE2701539A1 (de) 1977-08-04
SE7700725L (sv) 1977-07-29
NL7600842A (nl) 1977-08-01
ES455360A1 (es) 1978-01-01

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