DE3380796D1 - Optical memory system having an improved track following - Google Patents

Optical memory system having an improved track following

Info

Publication number
DE3380796D1
DE3380796D1 DE8383300802T DE3380796T DE3380796D1 DE 3380796 D1 DE3380796 D1 DE 3380796D1 DE 8383300802 T DE8383300802 T DE 8383300802T DE 3380796 T DE3380796 T DE 3380796T DE 3380796 D1 DE3380796 D1 DE 3380796D1
Authority
DE
Germany
Prior art keywords
memory system
optical memory
track following
improved track
improved
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
DE8383300802T
Other languages
English (en)
Inventor
Der-Chang Hsieh
Edward V Labudde
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.)
SK Hynix Inc
Original Assignee
Unisys 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23372805&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3380796(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Unisys Corp filed Critical Unisys Corp
Application granted granted Critical
Publication of DE3380796D1 publication Critical patent/DE3380796D1/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
    • G11B7/09—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
DE8383300802T 1982-02-17 1983-02-17 Optical memory system having an improved track following Expired DE3380796D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/349,536 US4432083A (en) 1982-02-17 1982-02-17 Optical memory system having track following

Publications (1)

Publication Number Publication Date
DE3380796D1 true DE3380796D1 (en) 1989-12-07

Family

ID=23372805

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383300802T Expired DE3380796D1 (en) 1982-02-17 1983-02-17 Optical memory system having an improved track following

Country Status (6)

Country Link
US (1) US4432083A (de)
EP (1) EP0088538B2 (de)
JP (1) JP2552437B2 (de)
CA (1) CA1200602A (de)
DE (1) DE3380796D1 (de)
WO (1) WO1983003025A1 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58200473A (ja) * 1982-05-19 1983-11-22 Pioneer Video Kk 情報読取装置
JPS6010429A (ja) * 1983-06-30 1985-01-19 Toshiba Corp 光デイスク装置
US4571714A (en) * 1984-07-06 1986-02-18 Storage Technology Partners Ii Read beam position calibration
US4577301A (en) * 1984-07-06 1986-03-18 Storage Technology Partners Ii Track pitch calibration error reduction
US4578786A (en) * 1984-07-06 1986-03-25 Storage Technology Partners Ii Track pitch calibration system for use in optical storage devices
US4571712A (en) * 1984-07-06 1986-02-18 Storage Technology Partners Ii Beam alignment signal processing
US4707816A (en) * 1985-03-29 1987-11-17 Hitachi, Ltd. Method and apparatus for composite wobbled and push-pull tracking servo system
US4748609A (en) * 1985-03-29 1988-05-31 Hitachi, Ltd. Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset
US4879707A (en) * 1985-07-30 1989-11-07 Laser Magnetic Storage International Company Optical disk tracking and seeking systems specific track formats using discontinuities
ATE84631T1 (de) * 1985-07-30 1993-01-15 Philips Nv Generatorkreis fuer spursignal und aufzeichnungstraeger dafuer.
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
US4768180A (en) * 1986-03-17 1988-08-30 Laser Magnetic Storage International Company Multistage tracking system
KR910008503B1 (ko) * 1987-03-13 1991-10-18 미쯔비시덴끼 가부시끼가이샤 광 디스크
US5107483A (en) * 1987-08-19 1992-04-21 Mitsubishi Denki Kabushiki Kaisha Frequency selective optical data record/regenerate apparatus
US4982393A (en) * 1987-08-31 1991-01-01 Canon Kabushiki Kaisha Information recording and/or reproducing apparatus provided with means for detecting abnormality of tracking servo
JPH073692B2 (ja) * 1987-12-02 1995-01-18 株式会社日立製作所 光ディスク装置におけるトラッキング制御回路
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
JPH01201831A (ja) * 1988-02-05 1989-08-14 Olympus Optical Co Ltd 光学的情報記録再生装置
US5319622A (en) * 1990-02-09 1994-06-07 Ast Research, Inc. Control and information disk for disk recording system
US5841567A (en) * 1996-07-02 1998-11-24 Barco Gerber Systems Method and apparatus for imaging at a plurality of wavelengths
US5821981A (en) * 1996-07-02 1998-10-13 Gerber Systems Corporation Magnetically preloaded air bearing motion system for an imaging device
US5828501A (en) * 1996-07-02 1998-10-27 Barco Gerber Systems Apparatus and method for positioning a lens to expand an optical beam of an imaging system
US5938187A (en) * 1997-04-18 1999-08-17 Gerber Systems Corporation Media feed apparatus for an imaging device
US5912458A (en) * 1997-04-18 1999-06-15 Gerber Systems Corporation Multiple beam scanning system for an imaging device
US6042101A (en) * 1997-06-03 2000-03-28 Gerber Systems Corporation Automated media transport device and method of using the same
JP2002175625A (ja) * 2000-12-06 2002-06-21 Sony Corp 記録装置および記録方法
JP4443208B2 (ja) * 2003-12-12 2010-03-31 日立ビアメカニクス株式会社 スキャナ装置

Family Cites Families (14)

* 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.
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
NL7509906A (nl) * 1975-08-21 1977-02-23 Philips Nv Inrichting voor het uitlezen van een schijfvor- mige registratiedrager.
GB1577133A (en) * 1976-03-19 1980-10-22 Rca Corp Video information record and playback apparatus
FR2349191A1 (fr) * 1976-04-23 1977-11-18 Thomson Brandt Lecteur optique de disque d'information comportant un dispositif d'acces automatique aux informations
FR2396379A1 (fr) * 1977-07-01 1979-01-26 Thomson Brandt Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations
JPS5913101B2 (ja) * 1977-12-16 1984-03-27 株式会社日立製作所 ランダムアクセス方法
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.
SE7813460L (sv) * 1978-03-27 1979-09-28 Mca Disco Vision Videoskivspelare
EP0007199B1 (de) * 1978-06-30 1986-12-30 Discovision Associates Verfahren und Vorrichtung zur Informationswiedergabe von einem optisch lesbaren Speichermedium
US4375091A (en) * 1978-06-30 1983-02-22 Discovision Associates Method and apparatus for information retrieval from an optically readable storage medium
NL7810386A (nl) * 1978-10-17 1980-04-21 Philips Nv Optische leesinrichting voor het uitlezen van een schijfvormige 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.
JPS6048809B2 (ja) * 1979-10-16 1985-10-29 パイオニアビデオ株式会社 情報読取装置におけるトラッキングサ−ボ引込装置

Also Published As

Publication number Publication date
CA1200602A (en) 1986-02-11
WO1983003025A1 (en) 1983-09-01
JPS59500244A (ja) 1984-02-16
EP0088538B1 (de) 1989-11-02
JP2552437B2 (ja) 1996-11-13
EP0088538B2 (de) 1999-08-18
EP0088538A1 (de) 1983-09-14
US4432083A (en) 1984-02-14

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: HYUNDAI ELECTRONICS INDUSTRIES LTD., SEOUL, KR

8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee