FR2396379A1 - Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations - Google Patents

Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations

Info

Publication number
FR2396379A1
FR2396379A1 FR7720373A FR7720373A FR2396379A1 FR 2396379 A1 FR2396379 A1 FR 2396379A1 FR 7720373 A FR7720373 A FR 7720373A FR 7720373 A FR7720373 A FR 7720373A FR 2396379 A1 FR2396379 A1 FR 2396379A1
Authority
FR
France
Prior art keywords
radial
groove
read
disc reader
optical information
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
FR7720373A
Other languages
English (en)
Other versions
FR2396379B1 (fr
Inventor
Jean-Claude Lehureau
Pierre Oprandi
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt 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-Brandt SA filed Critical Thomson-Brandt SA
Priority to FR7720373A priority Critical patent/FR2396379A1/fr
Priority to US05/919,552 priority patent/US4138663A/en
Priority to CA306,583A priority patent/CA1109148A/fr
Priority to DE19782828845 priority patent/DE2828845A1/de
Priority to GB7828521A priority patent/GB2000612B/en
Publication of FR2396379A1 publication Critical patent/FR2396379A1/fr
Application granted granted Critical
Publication of FR2396379B1 publication Critical patent/FR2396379B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/39—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using a combination of the means covered by at least two of the preceding sub-groups G05B19/21, G05B19/27, and G05B19/33
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/005—Programmed access to indexed parts of tracks of operating discs, by guiding the disc
    • 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
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only
    • 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
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37275—Laser, interferometer

Abstract

L'invention se rapporte à un lecteur optique de disque d'information, dont les tranches sont repérables par des adresses préalablement inscrites sur chacun des sillons formant la piste. Un dispositif d'avance radiale de la tête de lecture par rapport au disque est mis en marche après calcul de la différence entre l'adresse du sillon recherché et l'adresse lue. Un dispositif de comptage des sillons traversés utilisant simultanément l'enveloppe du signal de lecture et le signal d'écart radial de la tête par rapport à la piste la plus proche permet de compter algébriquement les pistes traversées; le dispositif de comptage commande après comparaison avec le nombre de sillons à traverser le freinage de l'avance radiale lorsque le spot est à une distance prédéterminée du sillon à atteindre et l'arrêt total ainsi que la fermeture de la boucle d'asservissement radial lorsque le sillon est atteint Application, notamment, à la recherche d'informations stockées sur disques lisibles optiquement pour l'informatique.
FR7720373A 1977-07-01 1977-07-01 Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations Granted FR2396379A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7720373A FR2396379A1 (fr) 1977-07-01 1977-07-01 Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations
US05/919,552 US4138663A (en) 1977-07-01 1978-06-27 Optical reader for information discs equipped with means for automatic access to the information
CA306,583A CA1109148A (fr) 1977-07-01 1978-06-30 Lecteur optique pour disques d'information dotes d'un dispositif pour l'acces automatique a l'information
DE19782828845 DE2828845A1 (de) 1977-07-01 1978-06-30 Optischer leser fuer informationstraegerplatten
GB7828521A GB2000612B (en) 1977-07-01 1978-06-30 Optical reader for information discs equipped with means for automatic access to the information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7720373A FR2396379A1 (fr) 1977-07-01 1977-07-01 Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations

Publications (2)

Publication Number Publication Date
FR2396379A1 true FR2396379A1 (fr) 1979-01-26
FR2396379B1 FR2396379B1 (fr) 1981-05-22

Family

ID=9192885

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7720373A Granted FR2396379A1 (fr) 1977-07-01 1977-07-01 Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations

Country Status (5)

Country Link
US (1) US4138663A (fr)
CA (1) CA1109148A (fr)
DE (1) DE2828845A1 (fr)
FR (1) FR2396379A1 (fr)
GB (1) GB2000612B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490859A1 (fr) * 1980-09-22 1982-03-26 Victor Company Of Japan Appareil de reproduction de support d'enregistrement tournant mettant un systeme de commande de suivi de piste dans un etat de non-fonctionnement lorsque le suivi de piste d'un element de reproduction n'est pas necessaire
EP0225259B1 (fr) * 1985-11-27 1991-07-24 Alcatel Thomson Gigadisc Support d'information à prégravure et son dispositif d'exploration optiques à accès échantillonné

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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
US4506355A (en) * 1981-08-24 1985-03-19 Discovision Associates Method and apparatus for information retrieval from an optically readable storage medium
ATE44106T1 (de) * 1978-06-30 1989-06-15 Discovision Ass 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
USRE32574E (en) * 1978-06-30 1988-01-05 Discovision Associates Method and apparatus for information retrieval from an optically readable storage medium
US4539664A (en) * 1978-08-25 1985-09-03 Matsushita Electric Industrial Co., Ltd. Control system for optical information signal reproduction device
NL7810386A (nl) * 1978-10-17 1980-04-21 Philips Nv Optische leesinrichting voor het uitlezen van een schijfvormige registratiedrager.
JPS5936347B2 (ja) * 1978-12-11 1984-09-03 日本ビクター株式会社 情報記録担体
JPS5611673A (en) * 1979-07-03 1981-02-05 Pioneer Video Corp Address information retrieval method in information recording medium reproducing unit
US4340950A (en) * 1979-10-12 1982-07-20 Universal Pioneer Corporation Video disc player
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
JPS6331218Y2 (fr) * 1979-11-08 1988-08-22
US4321622A (en) * 1979-11-26 1982-03-23 Mcdonnell Douglas Corporation Video track transfer system and method
NL8003305A (nl) * 1980-06-06 1982-01-04 Philips Nv Inrichting voor het opzoeken van een gewenst informa- tiespoor.
US4484319A (en) * 1980-09-19 1984-11-20 Matsushita Electric Industrial Co., Ltd. Apparatus for locating a track on disc-like optical information carriers
US4406000A (en) * 1981-03-31 1983-09-20 Discovision Associates Tracking system for optical record medium
US4414655A (en) * 1981-03-31 1983-11-08 Discovision Associates Scanning beam control system
JPS57176568A (en) * 1981-04-22 1982-10-29 Pioneer Electronic Corp Relative movement controller between pickup and recording track for information reader
JPS57198586A (en) * 1981-05-28 1982-12-06 Sony Corp Digital disc reproducing device
JPS58122676A (ja) * 1982-01-16 1983-07-21 Sony Corp デイスクのトラツク・ジヤンプ装置
US4443869A (en) * 1981-09-28 1984-04-17 Rca Corporation Track jump servo system for disc player
KR880000999B1 (ko) * 1981-11-25 1988-06-10 미쓰다 가쓰시게 광학적 정보 기억장치
DE3300951C2 (de) * 1982-01-16 1994-10-27 Sony Corp Verfahren und Einrichtung zum schnellen Bewegen einer Abtasteinrichtung eines Informationssignal-Wiedergabegerätes
US4432082A (en) * 1982-02-17 1984-02-14 Burroughs Corporation Optical memory system having a long seek capability
US4432083A (en) * 1982-02-17 1984-02-14 Burroughs Corporation Optical memory system having track following
US4489406A (en) * 1982-02-17 1984-12-18 Burroughs Corporation Optical memory system having a short seek capability
US4435797A (en) * 1982-02-17 1984-03-06 Burroughs Corporation Optical memory system having track following and seeking capabilities
FR2523351B1 (fr) * 1982-03-09 1989-07-13 Thomson Csf Tete optique dans un dispositif d'enregistrement-lecture d'un support d'information
EP0096969B1 (fr) * 1982-05-19 1986-12-30 BURROUGHS CORPORATION (a Delaware corporation) Système de mémoire optique avec dispositif de commande de positionnement et de focalisation
US4674076A (en) * 1982-05-19 1987-06-16 Burroughs Corporation Optical memory system having improved positioning and focusing control circuitry
JPS5972692A (ja) * 1982-10-20 1984-04-24 Canon Inc 画像信号再生装置の制御装置
NL8303046A (nl) * 1983-09-01 1985-04-01 Philips Nv Inrichting voor het uitlezen van een schijfvormige registratiedrager.
EP0125019A1 (fr) * 1983-04-05 1984-11-14 Pioneer Electronic Corporation Dispositif pour commander des opérations de saut de piste d'enregistrement
NL8303029A (nl) * 1983-08-31 1985-03-18 Philips Nv Inrichting voor het uitlezen van een schijfvormige optische registratiedrager.
JP2510410B2 (ja) * 1983-10-27 1996-06-26 パイオニア株式会社 デイスクプレ−ヤの情報選択装置
US4594701A (en) * 1983-10-31 1986-06-10 Rca Corporation System for recording data on spiral track
JPS60145576A (ja) * 1984-01-10 1985-08-01 Canon Inc 光学情報記録再生装置のトラックシーク方法
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
DE3546649C2 (fr) * 1984-04-27 1990-11-29 Pioneer Electronic Corp., Tokio/Tokyo, Jp
JPS60254464A (ja) * 1984-05-31 1985-12-16 Fuji Photo Film Co Ltd 回転記録体再生装置
JPS60256927A (ja) * 1984-06-01 1985-12-18 Nippon Gakki Seizo Kk 光学式デイスク再生装置の読取り制御装置
JPS6139239A (ja) * 1984-07-28 1986-02-25 Sony Corp 光学式デイスクプレ−ヤ
JP2644720B2 (ja) * 1985-02-25 1997-08-25 株式会社日立製作所 トラック引込み方法
JPH0612572B2 (ja) * 1985-03-08 1994-02-16 オリンパス光学工業株式会社 光学的情報記録再生装置
KR940002001B1 (ko) * 1985-03-22 1994-03-12 가부시끼가이샤 히다찌세이사꾸쇼 액세스 방법과 그 정보 검색장치
DE3618137A1 (de) * 1985-05-31 1986-12-11 Hitachi, Ltd., Tokio/Tokyo Bildplatten-zugriffsverfahren und bildplattenspeicher
DE3520189A1 (de) * 1985-06-05 1986-12-11 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Verfahren fuer das spurspringen bei spursuchvorgaengen und schaltungsanordnung zur durchfuehrung des verfahrens
KR870006556A (ko) * 1985-12-13 1987-07-13 미쓰다 가쓰시게 트랙킹서보 제어장치
US4727528A (en) * 1986-04-22 1988-02-23 Sri International Optical media tracking method and apparatus for optical storage system
CA1299747C (fr) * 1986-09-20 1992-04-28 Hidefumi Suzuki Support d'enregistrement optique
US5012461A (en) * 1987-02-27 1991-04-30 Sony Corporation Disk recording apparatus for re-establishing a recording mode at a desired address
JPH0748257B2 (ja) * 1987-05-07 1995-05-24 富士通株式会社 光ディスク装置のマルチトラックジャンプ回路
JP2565205B2 (ja) * 1987-08-20 1996-12-18 ソニー株式会社 光デイスク装置
US4858041A (en) * 1987-10-20 1989-08-15 Mattel, Inc. Tracking servo control
JP2892002B2 (ja) * 1987-11-20 1999-05-17 ソニー株式会社 トラックアクセス制御装置及びトラックアクセス方法
JPH01148100A (ja) * 1987-12-01 1989-06-09 Matsushita Electric Ind Co Ltd 位置制御装置
US4897827A (en) * 1987-12-12 1990-01-30 U.S. Philips Corporation Video disc player with rapid track access means
US4912753A (en) * 1988-04-04 1990-03-27 Hughes Aircraft Company Robot axis controller employing feedback and open loop (feedforward) control
JP2573301B2 (ja) * 1988-04-22 1997-01-22 株式会社東芝 ディスク装置
KR950006419B1 (ko) * 1990-04-16 1995-06-15 삼성전자주식회사 광기록 재생장치의 고속서치방법
FR2723243B1 (fr) * 1994-07-26 1996-09-06 Thomson Csf Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation
FR2739965B1 (fr) * 1995-10-17 1997-11-07 Thomson Csf Dispositif emetteur-recepteur de lumiere et systeme de lecture optique
CN1072825C (zh) * 1995-11-20 2001-10-10 三星电子株式会社 带有偏心调节装置的光盘驱动器
FR2786345B1 (fr) 1998-11-24 2001-02-09 Thomson Csf Dispositif de cryptage quantique
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Citations (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490859A1 (fr) * 1980-09-22 1982-03-26 Victor Company Of Japan Appareil de reproduction de support d'enregistrement tournant mettant un systeme de commande de suivi de piste dans un etat de non-fonctionnement lorsque le suivi de piste d'un element de reproduction n'est pas necessaire
EP0225259B1 (fr) * 1985-11-27 1991-07-24 Alcatel Thomson Gigadisc Support d'information à prégravure et son dispositif d'exploration optiques à accès échantillonné

Also Published As

Publication number Publication date
DE2828845A1 (de) 1979-01-11
US4138663A (en) 1979-02-06
FR2396379B1 (fr) 1981-05-22
CA1109148A (fr) 1981-09-15
GB2000612B (en) 1982-01-13
GB2000612A (en) 1979-01-10
DE2828845C2 (fr) 1992-02-20

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