HK98984A - Tracking apparatus for an optically readable record - Google Patents

Tracking apparatus for an optically readable record Download PDF

Info

Publication number
HK98984A
HK98984A HK989/84A HK98984A HK98984A HK 98984 A HK98984 A HK 98984A HK 989/84 A HK989/84 A HK 989/84A HK 98984 A HK98984 A HK 98984A HK 98984 A HK98984 A HK 98984A
Authority
HK
Hong Kong
Prior art keywords
optically readable
tracking apparatus
readable record
control signal
detection system
Prior art date
Application number
HK989/84A
Other languages
English (en)
Inventor
Gerard Opheij Willem
Eudard Van Rosmalen Gerard
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of HK98984A publication Critical patent/HK98984A/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
    • 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
    • G11B7/095—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 discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0953—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 discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks
    • 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
    • G11B7/0904—Dithered tracking systems

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
HK989/84A 1980-10-13 1984-12-19 Tracking apparatus for an optically readable record HK98984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8005633A NL8005633A (nl) 1980-10-13 1980-10-13 Inrichting voor het uitlezen en/of inschrijven van een optisch uitleesbare informatiestruktuur.

Publications (1)

Publication Number Publication Date
HK98984A true HK98984A (en) 1984-12-28

Family

ID=19836008

Family Applications (1)

Application Number Title Priority Date Filing Date
HK989/84A HK98984A (en) 1980-10-13 1984-12-19 Tracking apparatus for an optically readable record

Country Status (17)

Country Link
US (1) US4423496A (cs)
JP (1) JPS5794942A (cs)
KR (1) KR900000496B1 (cs)
AT (1) AT371624B (cs)
AU (1) AU7618181A (cs)
BE (1) BE890702A (cs)
CA (1) CA1182912A (cs)
DD (1) DD213543A5 (cs)
DE (1) DE3140349A1 (cs)
ES (1) ES506155A0 (cs)
FR (1) FR2492144A1 (cs)
GB (1) GB2086092B (cs)
HK (1) HK98984A (cs)
IT (1) IT1138945B (cs)
NL (1) NL8005633A (cs)
SE (1) SE452074B (cs)
SG (1) SG76884G (cs)

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US4564757A (en) * 1982-09-30 1986-01-14 Burroughs Corporation Mirror position sensor for improved track selection in optical data disk system
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JPS59154677A (ja) * 1983-02-22 1984-09-03 Matsushita Electric Ind Co Ltd トラツキング制御装置
JPS60242524A (ja) * 1984-05-16 1985-12-02 Nippon Columbia Co Ltd 光ピツクアツプ
JPS60263345A (ja) * 1984-06-12 1985-12-26 Yokogawa Hokushin Electric Corp 光メモリ装置
CA1255385A (en) * 1985-01-31 1989-06-06 Shigeru Arai Track servo system for controllably projecting an optical beam to an optical disk
EP0191467B1 (en) * 1985-02-15 1991-03-27 Hitachi, Ltd. Optical disc apparatus
JPS61196433A (ja) * 1985-02-25 1986-08-30 Fujitsu Ltd トラツキング用アクチユエ−タ
US4712887A (en) * 1985-12-20 1987-12-15 Dazar Corporation Optical system for fast access optical data storage device
JPS62231435A (ja) * 1986-03-31 1987-10-12 Asahi Optical Co Ltd 光デイスク用対物レンズ駆動装置
NL8800133A (nl) 1988-01-21 1989-08-16 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
JPH0268735A (ja) * 1988-09-05 1990-03-08 Nippon Telegr & Teleph Corp <Ntt> 検出装置
JPH02110022U (cs) * 1989-02-21 1990-09-03
JPH0249222A (ja) * 1989-05-30 1990-02-19 Mitsubishi Electric Corp 光学式ピツクアツプ装置
US4998011A (en) * 1989-11-17 1991-03-05 Applied Magnetics Corporation Flat plate focus sensing apparatus
GB2248989B (en) * 1990-10-15 1995-05-24 Applied Magnetics Corp Focus sensing apparatus and method
US5245174A (en) * 1990-10-15 1993-09-14 Applied Magnetics Corporation Focus sensing apparatus utilizing a reflecting surface having variable reflectivity
US5568315A (en) * 1991-05-28 1996-10-22 Discovision Associates Optical beamsplitter
US5331622A (en) * 1991-05-28 1994-07-19 Applied Magnetics Corporation Compact optical head
JP2795571B2 (ja) * 1992-01-07 1998-09-10 シャープ株式会社 光ディスク装置
JP2950011B2 (ja) * 1992-04-06 1999-09-20 松下電器産業株式会社 ミラー駆動装置
JPH05334703A (ja) * 1992-05-29 1993-12-17 Matsushita Electric Ind Co Ltd ミラー移動量検出装置
FR2765380A1 (fr) 1997-06-26 1999-01-01 Asahi Optical Co Ltd Systeme optique pour lecteur de disque optique
DE19828689A1 (de) 1997-06-27 1999-01-07 Asahi Optical Co Ltd Spiegelgalvanometereinheit
US6424068B2 (en) 1997-06-27 2002-07-23 Asahi Kogaku Kogyo Kabushiki Kaisha Galvano mirror unit
FR2765351B1 (fr) * 1997-06-27 2005-04-22 Asahi Optical Co Ltd Systeme de detection de rotation pour miroir galvanique
JPH1186328A (ja) 1997-09-12 1999-03-30 Asahi Optical Co Ltd 光学式情報記録再生装置
US6404715B1 (en) 1997-10-06 2002-06-11 Asahi Kogaku Kogyo Kabushiki Kaisha Detecting system for detecting rotation angle of deflection mirror
US6344917B1 (en) 1997-10-17 2002-02-05 Asahi Kogaku Kogyo Kabushiki Kaisha Galvano mirror unit
US6421156B1 (en) 1997-10-17 2002-07-16 Asahi Kogaku Kogyo Kabushiki Kaisha Galvano mirror unit
US6404485B1 (en) 1997-10-24 2002-06-11 Asahi Kogaku Kogyo Kabushiki Kaisha Rotation amount detecting system of deflection mirror for optical disc drive
US6292447B1 (en) 1997-10-24 2001-09-18 Asahi Kogaku Kogyo Kabushiki Kaisha Head for optical disc drive
US6324141B2 (en) 1997-10-24 2001-11-27 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system for optical disc drive
FR2770674B1 (fr) 1997-10-31 2000-09-29 Asahi Optical Co Ltd Systeme optique pour unite de disque optique
US6341106B1 (en) 1997-11-05 2002-01-22 Asahi Kogaku Kogyo Kabushiki Kaisha Optical disc drive
US6278682B1 (en) 1997-11-08 2001-08-21 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system for optical disc drive
US6650604B1 (en) 1997-12-27 2003-11-18 Pentax Corporation Optical head of disk drive
US6407975B1 (en) 1998-03-16 2002-06-18 Asahi Kogaku Kogyo Kabushiki Kaisha Of Tokyo Optical disk drive
KR100689722B1 (ko) * 1999-12-24 2007-03-08 코닌클리케 필립스 일렉트로닉스 엔.브이. 내부에 이동 가능형 소자의 위치를 검출하는 검출계를포함한 광학 주사장치
US7129473B2 (en) * 2003-05-16 2006-10-31 Olympus Corporation Optical image pickup apparatus for imaging living body tissue
RU2335736C2 (ru) * 2006-06-05 2008-10-10 Александр Алексеевич Кулиш Зеркальное фотоэлектрическое устройство контроля угловых смещений

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DE1101796B (de) * 1958-05-24 1961-03-09 Zeiss Carl Fa Strahlenteilungswechsler fuer Photomikroskope
US3731098A (en) * 1972-03-06 1973-05-01 Spectrotherm Corp Image scanner drive system
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US3931459A (en) * 1974-02-04 1976-01-06 Zenith Radio Corporation Video disc
JPS5146018A (cs) * 1974-10-18 1976-04-20 Victor Company Of Japan
NL181693C (nl) * 1974-11-29 1987-10-01 Philips Nv Inrichting voor het langs optische weg uitlezen van een stralingsreflekterende registratiedrager.
NL174609C (nl) * 1975-10-15 1984-07-02 Philips Nv Volgspiegelinrichting in een optische platenspeler.
US4100576A (en) * 1976-04-28 1978-07-11 Zenith Radio Corporation Electromagnetic optical beam controller having an eddy current damper for arresting mechanical resonance
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NL7810386A (nl) * 1978-10-17 1980-04-21 Philips Nv Optische leesinrichting voor het uitlezen van een schijfvormige registratiedrager.
JPS626580Y2 (cs) * 1979-11-17 1987-02-16
JPS6215864Y2 (cs) * 1980-08-04 1987-04-22

Also Published As

Publication number Publication date
ATA437581A (de) 1982-11-15
GB2086092B (en) 1984-06-20
IT8124438A0 (it) 1981-10-09
ES8207369A1 (es) 1982-09-01
SE8105989L (sv) 1982-04-14
FR2492144B1 (cs) 1984-02-24
KR830008309A (ko) 1983-11-18
JPS5794942A (en) 1982-06-12
AT371624B (de) 1983-07-11
DD213543A5 (de) 1984-09-12
FR2492144A1 (fr) 1982-04-16
DE3140349A1 (de) 1982-08-12
AU7618181A (en) 1982-04-22
BE890702A (fr) 1982-04-13
KR900000496B1 (ko) 1990-01-31
CA1182912A (en) 1985-02-19
US4423496A (en) 1983-12-27
NL8005633A (nl) 1982-05-03
IT1138945B (it) 1986-09-17
ES506155A0 (es) 1982-09-01
SG76884G (en) 1985-04-26
GB2086092A (en) 1982-05-06
SE452074B (sv) 1987-11-09
DE3140349C2 (cs) 1991-12-12

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