DE3273858D1 - Galvo position sensor for improved track selection in optical data - Google Patents

Galvo position sensor for improved track selection in optical data

Info

Publication number
DE3273858D1
DE3273858D1 DE8282306815T DE3273858T DE3273858D1 DE 3273858 D1 DE3273858 D1 DE 3273858D1 DE 8282306815 T DE8282306815 T DE 8282306815T DE 3273858 T DE3273858 T DE 3273858T DE 3273858 D1 DE3273858 D1 DE 3273858D1
Authority
DE
Germany
Prior art keywords
position sensor
optical data
track selection
improved track
galvo position
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.)
Expired
Application number
DE8282306815T
Other languages
English (en)
Inventor
Paul Martell Tretheway
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.)
Unisys Corp
Original Assignee
Burroughs 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 Burroughs Corp filed Critical Burroughs Corp
Application granted granted Critical
Publication of DE3273858D1 publication Critical patent/DE3273858D1/de
Expired 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
DE8282306815T 1981-12-21 1982-12-20 Galvo position sensor for improved track selection in optical data Expired DE3273858D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/332,496 US4466088A (en) 1981-12-21 1981-12-21 Galvo position sensor for track selection in optical data disk system

Publications (1)

Publication Number Publication Date
DE3273858D1 true DE3273858D1 (en) 1986-11-20

Family

ID=23298483

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282306815T Expired DE3273858D1 (en) 1981-12-21 1982-12-20 Galvo position sensor for improved track selection in optical data

Country Status (6)

Country Link
US (1) US4466088A (de)
EP (1) EP0084727B1 (de)
JP (1) JPS58501846A (de)
CA (1) CA1190644A (de)
DE (1) DE3273858D1 (de)
WO (1) WO1983002354A1 (de)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163943U (ja) * 1983-04-18 1984-11-02 パイオニア株式会社 光軸モニタ装置
US4768180A (en) * 1986-03-17 1988-08-30 Laser Magnetic Storage International Company Multistage tracking system
JP2635608B2 (ja) * 1987-08-29 1997-07-30 株式会社東芝 光学的情報記憶媒体検査装置
JPH01201831A (ja) * 1988-02-05 1989-08-14 Olympus Optical Co Ltd 光学的情報記録再生装置
US4972258A (en) * 1989-07-31 1990-11-20 E. I. Du Pont De Nemours And Company Scanning laser microscope system and methods of use
US5208706A (en) * 1988-10-24 1993-05-04 Lemelson Jerome H Magnetic reproduction apparatus and method
JPH0770066B2 (ja) * 1988-10-27 1995-07-31 パイオニア株式会社 光軸モニタ装置
US5002348A (en) * 1989-05-24 1991-03-26 E. I. Du Pont De Nemours And Company Scanning beam optical signal processor
US5420848A (en) * 1990-08-02 1995-05-30 Canon Kabushiki Kaisha Optical system for optical information recording/reproducing apparatus having a galvano mirror
JP2536274Y2 (ja) * 1990-12-17 1997-05-21 旭光学工業株式会社 ガルバノミラー装置
JPH05109092A (ja) * 1991-10-14 1993-04-30 Sony Corp 光テープ記録再生装置
US5436871A (en) * 1991-12-30 1995-07-25 Information Optics Corporation Optical random access memory having folded image
US5253245A (en) * 1992-01-21 1993-10-12 International Business Machines Corporation Optical data storage tracking system
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
US5526144A (en) * 1993-11-18 1996-06-11 International Business Machines Corporation Optical system with pivoting hologram
DE19828678A1 (de) 1997-06-26 1999-01-07 Asahi Optical Co Ltd Optisches System für ein Laufwerk für optische Speicherplatten
US6424068B2 (en) 1997-06-27 2002-07-23 Asahi Kogaku Kogyo Kabushiki Kaisha Galvano mirror unit
DE19828679B4 (de) 1997-06-27 2004-07-08 Pentax Corp. Galvanospiegel-System
DE19828689A1 (de) 1997-06-27 1999-01-07 Asahi Optical Co Ltd Spiegelgalvanometereinheit
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
US6324141B2 (en) 1997-10-24 2001-11-27 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system for optical disc drive
US6292447B1 (en) 1997-10-24 2001-09-18 Asahi Kogaku Kogyo Kabushiki Kaisha Head for optical disc drive
US6404485B1 (en) * 1997-10-24 2002-06-11 Asahi Kogaku Kogyo Kabushiki Kaisha Rotation amount detecting system of deflection mirror for optical disc drive
US6333910B1 (en) 1997-10-31 2001-12-25 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system for optical disc drive
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
GB2371818B (en) * 2001-02-06 2004-09-22 Ruff Pup Ltd A casing scraper
TWM446323U (zh) * 2012-08-03 2013-02-01 Ind Tech Res Inst 開口率量測感知裝置、開口距離感知裝置及光感測模組
DE102016112133A1 (de) 2016-07-01 2018-01-04 Schwind Eye-Tech-Solutions Gmbh & Co. Kg Verfahren zum redundanten Überwachen einer Lage eines beweglich gelagerten außenwirksamen Elements einer Vorrichtung und Vorrichtung

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237902A (en) * 1936-04-29 1941-04-08 Rca Corp Sound recording
US3737877A (en) * 1970-09-24 1973-06-05 Energy Conversion Devices Inc Data storage system with coarse and fine directing means
US3772464A (en) * 1972-04-17 1973-11-13 Spectrotherm Corp Rotating polygon mirror assembly with an interior motor
US3909608A (en) * 1972-12-26 1975-09-30 Thomson Csf Reproducing device for the optical reading out of a record carrying an embossed print
NL187413C (nl) * 1978-03-16 1991-09-16 Philips Nv Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager.
NL7812111A (nl) * 1978-12-13 1980-06-17 Philips Nv Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte.
US4271334A (en) * 1979-04-06 1981-06-02 Discovision Associates Apparatus for correcting for temperature-induced tracking errors in a system for recovering information from a recording disc
US4264809A (en) * 1979-05-02 1981-04-28 Eastman Kodak Company Servo control loop using optical feedback
US4290122A (en) * 1979-05-14 1981-09-15 Xerox Corporation Self-synchronizing clock source for optical memories
JPS5625240A (en) * 1979-06-04 1981-03-11 Discovision Ass Method and device for recording data signal on recording medium
JPS561018A (en) * 1979-06-15 1981-01-08 Fuji Photo Film Co Ltd Light beam scanner
NL8005633A (nl) * 1980-10-13 1982-05-03 Philips Nv Inrichting voor het uitlezen en/of inschrijven van een optisch uitleesbare informatiestruktuur.
US4531385A (en) * 1981-04-16 1985-07-30 Aktiebolaget Iro Method for feeding yarns of different colors to a knitting machine and knitting machine for carrying out that method

Also Published As

Publication number Publication date
US4466088A (en) 1984-08-14
CA1190644A (en) 1985-07-16
WO1983002354A1 (en) 1983-07-07
EP0084727B1 (de) 1986-10-15
EP0084727A1 (de) 1983-08-03
JPS58501846A (ja) 1983-10-27

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Legal Events

Date Code Title Description
8380 Miscellaneous part iii

Free format text: DER PATENTINHABER LAUTET RICHTIG: BURROUGHS CORP. (N.D. GES. DES STAATES DELAWARE) DETROIT, MICH., US

8328 Change in the person/name/address of the agent

Free format text: EISENFUEHR, G., DIPL.-ING. SPEISER, D., DIPL.-ING. RABUS, W., DR.-ING., PAT.-ANW., 2800 BREMEN

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee