FR2197495A5 - - Google Patents

Info

Publication number
FR2197495A5
FR2197495A5 FR7230346A FR7230346A FR2197495A5 FR 2197495 A5 FR2197495 A5 FR 2197495A5 FR 7230346 A FR7230346 A FR 7230346A FR 7230346 A FR7230346 A FR 7230346A FR 2197495 A5 FR2197495 A5 FR 2197495A5
Authority
FR
France
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
FR7230346A
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9103560&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR2197495(A5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7230346A priority Critical patent/FR2197495A5/fr
Priority to FR7246189A priority patent/FR2212070A6/fr
Priority to GB3987073A priority patent/GB1451799A/en
Priority to CA179,584A priority patent/CA1028058A/fr
Priority to DE19732342906 priority patent/DE2342906C2/de
Priority to JP48094878A priority patent/JPS5918771B2/ja
Priority to GB5904273A priority patent/GB1461590A/en
Publication of FR2197495A5 publication Critical patent/FR2197495A5/fr
Application granted granted Critical
Priority to CA288,323A priority patent/CA1051550A/en
Priority to US06/545,110 priority patent/US4491940A/en
Priority to US07/096,317 priority patent/US4868808A/en
Priority to US07/213,097 priority patent/US4856108A/en
Priority to US07/350,773 priority patent/US5016235A/en
Priority to US07/355,503 priority patent/US4961183A/en
Priority to US07/479,252 priority patent/US4989193A/en
Priority to US07/544,904 priority patent/US5126989A/en
Priority to US07/544,885 priority patent/US5175725A/en
Priority to US07/599,992 priority patent/US5132952A/en
Priority to US07/794,506 priority patent/US5182743A/en
Priority to US07/971,477 priority patent/US5307332A/en
Priority to US08/177,064 priority patent/US5373500A/en
Priority to US08/354,214 priority patent/US5872749A/en
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
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • 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
    • G11B7/0908—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 focusing 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
    • G11B7/09—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
    • G11B7/0908—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 focusing only
    • G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/048—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using other optical storage elements
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
FR7230346A 1972-08-25 1972-08-25 Expired FR2197495A5 (fr)

Priority Applications (21)

Application Number Priority Date Filing Date Title
FR7230346A FR2197495A5 (fr) 1972-08-25 1972-08-25
FR7246189A FR2212070A6 (fr) 1972-08-25 1972-12-26
GB3987073A GB1451799A (en) 1972-08-25 1973-08-22 System for optically reproducing pulse time modulated square waveforms stored along a track carried by an embossed record
DE19732342906 DE2342906C2 (de) 1972-08-25 1973-08-24 Optisches Speichermedium und optische Vorrichtung zum Auslesen des optischen Speichermediums
CA179,584A CA1028058A (fr) 1972-08-25 1973-08-24 Systeme de restitution d'impulsions modulees dans le temps et enregistrees sur une piste diffractive
JP48094878A JPS5918771B2 (ja) 1972-08-25 1973-08-25 回折トラツクに沿つて記録したしたパルス時間変調波の再生装置
GB5904273A GB1461590A (en) 1972-08-25 1973-12-20 Reproducing device
CA288,323A CA1051550A (en) 1972-08-25 1977-07-10 System for reproducing pulse time modulated waveforms stored along a diffractive track
US06/545,110 US4491940A (en) 1972-08-25 1983-10-25 System for reproducing pulse time modulated waveforms stored along a diffractive track
US07/096,317 US4868808A (en) 1972-08-25 1987-09-09 Optical disk arrangement with closed contours whose entire extent represents information
US07/213,097 US4856108A (en) 1972-08-25 1988-06-29 Optical arrangement and a reading apparatus including detection of data elements diffractive along entire extent
US07/350,773 US5016235A (en) 1972-08-25 1989-05-12 Arrangement for reading an optically readable light reflective carrier
US07/355,503 US4961183A (en) 1972-08-25 1989-05-23 Optical disk arrangement with closed contours whose entire extent represents information
US07/479,252 US4989193A (en) 1972-08-25 1990-02-13 Optical arrangement and a reading apparatus
US07/544,904 US5126989A (en) 1972-08-25 1990-06-28 Arrangement for reading an optically readable light reflective carrier
US07/544,885 US5175725A (en) 1972-08-25 1990-06-28 Optical disk arrangement with closed contours whose entire extent represents information
US07/599,992 US5132952A (en) 1972-08-25 1990-10-19 System for reproducing pulse time modulated wave forms stored along a diffractive track
US07/794,506 US5182743A (en) 1972-08-25 1991-11-19 Optical disk arrangement with diffractive tracks allowing positional control
US07/971,477 US5307332A (en) 1972-08-25 1992-11-04 Optical disk arrangement with diffractive tracks and a photoelectric assembly providing positional control information
US08/177,064 US5373500A (en) 1972-08-25 1994-01-03 Optical readable carrier with diffractive tracks containing information bearing irregularity
US08/354,214 US5872749A (en) 1972-08-25 1994-12-12 Arrangement for reading an optically readable carrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7230346A FR2197495A5 (fr) 1972-08-25 1972-08-25

Publications (1)

Publication Number Publication Date
FR2197495A5 true FR2197495A5 (fr) 1974-03-22

Family

ID=9103560

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7230346A Expired FR2197495A5 (fr) 1972-08-25 1972-08-25

Country Status (5)

Country Link
US (11) US4491940A (fr)
JP (1) JPS5918771B2 (fr)
CA (1) CA1028058A (fr)
FR (1) FR2197495A5 (fr)
GB (1) GB1451799A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012603A1 (fr) * 1978-12-13 1980-06-25 Discovision Associates Méthode et appareil pour suivre une piste d'information optiquement lisible
DE3239822A1 (de) * 1981-10-27 1983-05-11 Pioneer Electronic Corp., Tokyo Vorrichtung zum erzeugen eines spurfuehrungs-servosignals
EP0099576A2 (fr) * 1982-07-21 1984-02-01 Hitachi, Ltd. Dispositif optique de traitement d'informations
US4589102A (en) * 1980-12-29 1986-05-13 Thomson-Csf Device for compensating the lack of balance of a deviating mirror belonging to an optical system for illuminating a data medium
WO2017210315A1 (fr) * 2016-05-31 2017-12-07 Corning Incorporated Mesures anti-contrefaçon pour articles en verre

Families Citing this family (113)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5175725A (en) * 1972-08-25 1992-12-29 Thomson-Csf Optical disk arrangement with closed contours whose entire extent represents information
FR2197495A5 (fr) * 1972-08-25 1974-03-22 Thomson Csf
JPS5245840A (en) * 1975-10-08 1977-04-11 Olympus Optical Co Ltd Information reader equipment
NL176315C (nl) * 1976-05-12 1985-03-18 Philips Nv Optische aftastinrichting.
JPS53147504A (en) * 1977-05-27 1978-12-22 Nippon Telegr & Teleph Corp <Ntt> Optical recording information reproducer
US4918678A (en) * 1977-12-12 1990-04-17 Dolby Ray Milton Disc reproducing system for compensating mechanical imperfections
US5253244A (en) * 1980-07-16 1993-10-12 Discovision Associates System for recording digital information in a pulse-length modulation format
US5577015A (en) * 1980-07-16 1996-11-19 Discovision Associates System for recording digital information in a pulse-length modulation
CA1147858A (fr) * 1980-07-16 1983-06-07 Discovision Associates Systeme d'enregistrement de donnees numeriques a modulation de la duree d'impulsion
US5553047A (en) * 1980-07-16 1996-09-03 Discovision Associates System for recording digital information in a pulse-length modulation format
JPS5769534A (en) * 1980-10-15 1982-04-28 Hitachi Ltd Optical track tracing device
JPS5817549A (ja) * 1981-07-22 1983-02-01 Hitachi Ltd 光学的トラツク追従装置
KR880000999B1 (ko) 1981-11-25 1988-06-10 미쓰다 가쓰시게 광학적 정보 기억장치
NL8204555A (nl) * 1981-11-25 1983-06-16 Hitachi Ltd Inrichting voor het registreren en weergeven van informatie.
DE3342525A1 (de) * 1982-11-27 1984-05-30 Canon K.K., Tokio/Tokyo Geraet zur informations-aufzeichnung und/oder -wiedergabe
NL8301632A (nl) * 1983-05-09 1984-12-03 Philips Nv Registratiedrager waarin langs optische weg informatie kan worden ingeschreven en uitgelezen.
US4703408A (en) * 1983-11-28 1987-10-27 Hitachi, Ltd. Apparatus and record carrier for optically writing information
DE3618137A1 (de) * 1985-05-31 1986-12-11 Hitachi, Ltd., Tokio/Tokyo Bildplatten-zugriffsverfahren und bildplattenspeicher
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US5249175A (en) * 1988-09-09 1993-09-28 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and information recording and reproducing method therefor
JP2760812B2 (ja) * 1988-09-28 1998-06-04 株式会社日立製作所 光再生装置及び光再生方法
US5315574A (en) * 1988-10-28 1994-05-24 Matsushita Electric Industrial Co., Ltd. Optical head with polarized beam hologram
US5062094A (en) * 1988-11-07 1991-10-29 Minolta Camera Kabushiki Kaisha Optical head for optical disk system
EP0376678B1 (fr) * 1988-12-28 1995-03-01 Canon Kabushiki Kaisha Support d'enregistrement d'information
US5027340A (en) * 1989-06-01 1991-06-25 Mitsubishi Denki Kabushiki Kaisha Object lens head assembly
JPH03142717A (ja) * 1989-10-27 1991-06-18 Ricoh Co Ltd 光ディスク
US5303225A (en) * 1989-10-30 1994-04-12 Matsushita Electrical Industrial Co., Ltd. Multi-layered optical disk with track and layer identification
NL9002841A (nl) * 1990-12-21 1992-07-16 Philips Nv Werkwijze en inrichting voor het langs optische weg inschrijven, uitlezen, en wissen van een meervlaks registratiedrager, en registratiedrager geschikt voor deze werkwijze en inrichting.
TW213519B (fr) * 1991-08-01 1993-09-21 Philips Nv
US5331626A (en) * 1992-01-20 1994-07-19 Pioneer Electronic Corporation Recording medium and information recording and reproducing apparatus therefor
US5452284A (en) * 1992-09-14 1995-09-19 Matsushita Electric Industrial Co., Ltd. Optical recording/reproducing medium and apparatus using land and groove encoded information signals and identification signals including position information
US5566152A (en) * 1992-10-21 1996-10-15 Matsushita Electric Industrial Co., Ltd. Tracking control system with correction capabilities for correcting disagreement between optical axes
JPH06187666A (ja) * 1992-12-16 1994-07-08 Pioneer Electron Corp 光ディスク
US5815485A (en) * 1993-02-02 1998-09-29 Matsushita Electric Industrial Co., Ltd. Recording medium, a method for producing the same, a control method using the recording medium, and a recording/reproducing apparatus using the recording medium
JP3019181B2 (ja) * 1993-12-27 2000-03-13 日本電気株式会社 光ヘッドのサーボ信号検出装置
JP3582851B2 (ja) * 1994-01-25 2004-10-27 松下電器産業株式会社 トラッキング制御装置
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US5537282A (en) * 1994-07-15 1996-07-16 Treves; David Data storage disk having improved tracking capability
JPH08221789A (ja) * 1995-02-14 1996-08-30 Matsushita Electric Ind Co Ltd 光情報処理装置
JP2783180B2 (ja) * 1995-02-27 1998-08-06 日本電気株式会社 光ディスク装置
JP3549301B2 (ja) * 1995-09-08 2004-08-04 三菱電機株式会社 光ヘッドのトラッキング誤差検出装置
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JPS5918771B2 (ja) 1984-04-28
US4856108A (en) 1989-08-08
US4868808A (en) 1989-09-19
US5016235A (en) 1991-05-14
US5126989A (en) 1992-06-30
CA1028058A (fr) 1978-03-14
US4491940A (en) 1985-01-01
US5132952A (en) 1992-07-21
US4961183A (en) 1990-10-02
US5373500A (en) 1994-12-13
US5872749A (en) 1999-02-16
GB1451799A (en) 1976-10-06
US5307332A (en) 1994-04-26
US4989193A (en) 1991-01-29
JPS4960702A (fr) 1974-06-12

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