DE3380648D1 - Optical information carrier, optical device for generating tracking signals and optical device for generating error signals for focussing - Google Patents

Optical information carrier, optical device for generating tracking signals and optical device for generating error signals for focussing

Info

Publication number
DE3380648D1
DE3380648D1 DE8383400466T DE3380648T DE3380648D1 DE 3380648 D1 DE3380648 D1 DE 3380648D1 DE 8383400466 T DE8383400466 T DE 8383400466T DE 3380648 T DE3380648 T DE 3380648T DE 3380648 D1 DE3380648 D1 DE 3380648D1
Authority
DE
Germany
Prior art keywords
optical device
generating
signals
optical
focussing
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
DE8383400466T
Other languages
English (en)
Inventor
Claude Bricot
Pierre Berthet
Jean-Louis Gerard
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Application granted granted Critical
Publication of DE3380648D1 publication Critical patent/DE3380648D1/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00745—Sectoring or header formats within a track
    • 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
    • G11B7/0938—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 servo format, e.g. guide tracks, pilot signals
DE8383400466T 1982-03-12 1983-03-07 Optical information carrier, optical device for generating tracking signals and optical device for generating error signals for focussing Expired DE3380648D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8204221A FR2523349A1 (fr) 1982-03-12 1982-03-12 Procede et dispositif optique de generation de signaux d'asservissements de la position d'une tache d'exploration des pistes d'un support d'information

Publications (1)

Publication Number Publication Date
DE3380648D1 true DE3380648D1 (en) 1989-11-02

Family

ID=9271939

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383400466T Expired DE3380648D1 (en) 1982-03-12 1983-03-07 Optical information carrier, optical device for generating tracking signals and optical device for generating error signals for focussing

Country Status (8)

Country Link
US (1) US4562564A (de)
EP (1) EP0089274B1 (de)
JP (2) JPH06103537B2 (de)
CA (1) CA1202415A (de)
DE (1) DE3380648D1 (de)
FR (1) FR2523349A1 (de)
HK (1) HK125093A (de)
SG (1) SG34792G (de)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523347B1 (fr) * 1982-03-12 1988-11-04 Thomson Csf Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support
FR2613865B1 (fr) * 1982-03-12 1995-09-01 Thomson Csf Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support
FR2528605B1 (fr) * 1982-06-15 1987-11-20 Thomson Csf Procede et dispositif optique de focalisation d'un faisceau d'energie lumineuse sur un plan de reference d'un support d'information ainsi que ce support
US4530079A (en) * 1983-03-23 1985-07-16 Xerox Corporation Track following system for optical disc drive
NL8303564A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.
JPH0690804B2 (ja) * 1984-01-20 1994-11-14 株式会社日立製作所 光学的情報記録再生装置
FR2567673B1 (fr) * 1984-07-10 1986-11-07 Thomson Alcatel Gigadisc Support d'information inscriptible optiquement selon une piste definie par des motifs de pregravure et dispositif optique de suivi de piste mettant en oeuvre un tel support
NL8500153A (nl) * 1985-01-22 1986-08-18 Philips Nv Registratiedragerlichaam voorzien van een reliefstruktuur van optisch detekteerbare servospoorgedeelten en sektoradressen en inrichting voor het aanbrengen van deze struktuur.
JPS61170934A (ja) * 1985-01-25 1986-08-01 Hitachi Ltd 光デイスク記録装置
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
FR2581784B1 (fr) * 1985-05-10 1994-03-25 Thomson Alcatel Gigadisc Support d'information a pregravure et son dispositif de lecture optique
US5012460A (en) * 1985-05-31 1991-04-30 Information Storage, Inc. RAM head positioning and tracking system
US4949331A (en) * 1985-06-19 1990-08-14 Hitachi, Ltd. Apparatus and record carrier for optical disc memory with correction pattern and master disc cutting apparatus
FR2584223B1 (fr) * 1985-06-28 1994-06-17 Thomson Alcatel Gigadisc Memoire optique a suivi de piste echantillonne pour support d'information pregrave.
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
US4879707A (en) * 1985-07-30 1989-11-07 Laser Magnetic Storage International Company Optical disk tracking and seeking systems specific track formats using discontinuities
US4779253A (en) * 1985-07-30 1988-10-18 Laser Magnetic Storage International Company Sampled servo for an optical disk drive
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
JP2888484B2 (ja) * 1985-07-30 1999-05-10 オプテイカル ストレツジ インターナシヨナル−ユーエス 記録キャリア及び光データ読み書き装置
JPH06101125B2 (ja) * 1986-05-21 1994-12-12 キヤノン株式会社 光学的情報記録再生装置
JPH0782656B2 (ja) * 1986-07-11 1995-09-06 株式会社日立製作所 光デイスク装置
KR960000452B1 (ko) * 1986-08-25 1996-01-06 소니 가부시끼가이샤 디스크 장치 및 디스크형 기록 매체
JPH0679378B2 (ja) * 1986-12-15 1994-10-05 ソニー株式会社 光学式記録再生装置のトラツキングサ−ボ回路
JP2550051B2 (ja) * 1987-02-25 1996-10-30 株式会社日立製作所 光カード，光カードの記録再生方法，及び，光カード記録再生装置
KR910008503B1 (ko) * 1987-03-13 1991-10-18 미쯔비시덴끼 가부시끼가이샤 광 디스크
JP2619381B2 (ja) * 1987-03-20 1997-06-11 株式会社日立製作所 光学的情報再生装置
JPH0719385B2 (ja) * 1987-04-24 1995-03-06 株式会社日立製作所 光学的記録再生装置
US5166921A (en) * 1987-06-17 1992-11-24 Pioneer Electronic Corporation Optical disk carrying tracking information in multiple formats and apparatus for analyzing same
JPS63313331A (ja) * 1987-06-17 1988-12-21 Pioneer Electronic Corp 光ディスク
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
JP2735220B2 (ja) * 1987-12-02 1998-04-02 株式会社日立製作所 非点収差を有する光束を用いた焦点ずれ検出方法及び光ディスク装置
NL8702904A (nl) * 1987-12-03 1989-07-03 Philips Nv Werkwijze en inrichting voor het optekenen van informatie op een registratiedrager, alsmede een inrichting voor het lezen van de opgetekende informatie.
JP2776822B2 (ja) * 1988-03-10 1998-07-16 株式会社日立製作所 光ディスクの記録再生方法及びその装置
EP0320975B1 (de) * 1987-12-18 1994-11-30 Hitachi, Ltd. Verfahren und Gerät zur Datenaufnahme/Wiedergabe
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
JP2796302B2 (ja) * 1988-04-13 1998-09-10 株式会社日立製作所 光ディスクの記録または再生方法及び光ディスク装置、及び情報配置方法
US5031167A (en) * 1988-05-26 1991-07-09 Matsushita Electric Industrial Co., Ltd. Focus error detection system for an optical recording/reproducing system
JPH02130727A (ja) * 1988-11-10 1990-05-18 Sony Corp ディスク状記録媒体
US5272686A (en) * 1988-11-14 1993-12-21 Ricoh Company, Ltd. Servo signal generator for optical disk driving apparatus
JP2612329B2 (ja) * 1988-12-27 1997-05-21 シャープ株式会社 光メモリ素子並びに光メモリ再生装置
US5218589A (en) * 1989-04-24 1993-06-08 Ricoh Company, Ltd. Defect detecting method
JP2589814B2 (ja) * 1989-07-19 1997-03-12 松下電器産業株式会社 クロック抽出装置およびトラッキング誤差信号採取装置
US5148422A (en) * 1989-08-25 1992-09-15 Sony Corporation Optical recording medium having a data recording track with offset data storing regions
FR2660461B1 (fr) * 1990-04-03 1994-10-28 Atg Sa Support d'informations pregrave a marques deportees, procede de realisation des marques ainsi que procede d'elaboration d'un signal d'erreur de suivi radial et dispositif de lecture pour la mise en óoeuvre du procede.
US5561655A (en) * 1994-12-02 1996-10-01 Eastman Kodak Company Apparatus and method for differential tracking in a magneto-optic data storage system using mark edge detection
FR2731808B1 (fr) * 1995-03-14 1997-04-11 Thomson Csf Systeme de reglage de focalisation optique
US9212673B2 (en) 2011-09-30 2015-12-15 Carefusion 207, Inc. Maintaining a water level in a humidification component

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673412A (en) * 1970-03-02 1972-06-27 Trw Inc Radiant energy beam scanning method and apparatus
US3919697A (en) * 1974-06-26 1975-11-11 Battelle Development Corp Data record tracking using track identifying information in the gaps between recorded data groups
DE2522405C2 (de) * 1975-05-21 1982-04-15 Philips Patentverwaltung Gmbh, 2000 Hamburg Optisches Mehrkanal-Plattenspeichersystem zum Speichern von digitaler Information
GB1585546A (en) * 1976-04-08 1981-03-04 Victor Company Of Japan Information signal recording system
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.
JPS5637A (en) * 1979-06-11 1981-01-06 Hitachi Ltd Tracking system of optical disc memory
NL8000123A (nl) * 1980-01-09 1981-08-03 Philips Nv Inrichting voor het schrijven van digitale informatie in een schijfvormige optisch uitleesbare registratiedrager.
US4443870A (en) * 1981-10-15 1984-04-17 Burroughs Corporation Optical memory system providing track following
US4417330A (en) * 1981-10-15 1983-11-22 Burroughs Corporation Optical memory system providing improved focusing control
US4494226A (en) * 1981-10-15 1985-01-15 Burroughs Corporation Three beam optical memory system
US4402061A (en) * 1981-10-15 1983-08-30 Burroughs Corporation Preformatted optical media for use in an optical memory system

Also Published As

Publication number Publication date
EP0089274B1 (de) 1989-09-27
JPS58185046A (ja) 1983-10-28
CA1202415A (en) 1986-03-25
JPH06103537B2 (ja) 1994-12-14
EP0089274A1 (de) 1983-09-21
HK125093A (en) 1993-11-19
US4562564A (en) 1985-12-31
FR2523349A1 (fr) 1983-09-16
FR2523349B1 (de) 1984-04-20
SG34792G (en) 1992-05-22
JPH0528522A (ja) 1993-02-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition