SG34292G - Pre-engraved movable record carrier and tracking device therefor - Google Patents

Pre-engraved movable record carrier and tracking device therefor

Info

Publication number
SG34292G
SG34292G SG34292A SG34292A SG34292G SG 34292 G SG34292 G SG 34292G SG 34292 A SG34292 A SG 34292A SG 34292 A SG34292 A SG 34292A SG 34292 G SG34292 G SG 34292G
Authority
SG
Singapore
Prior art keywords
engraved
tracking device
record carrier
device therefor
movable record
Prior art date
Application number
SG34292A
Other languages
English (en)
Original Assignee
Thomson Csf
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 filed Critical Thomson Csf
Publication of SG34292G publication Critical patent/SG34292G/en

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
    • 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
    • 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
SG34292A 1982-03-12 1992-03-19 Pre-engraved movable record carrier and tracking device therefor SG34292G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR828204218A FR2523347B1 (fr) 1982-03-12 1982-03-12 Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support

Publications (1)

Publication Number Publication Date
SG34292G true SG34292G (en) 1993-01-29

Family

ID=9271935

Family Applications (1)

Application Number Title Priority Date Filing Date
SG34292A SG34292G (en) 1982-03-12 1992-03-19 Pre-engraved movable record carrier and tracking device therefor

Country Status (8)

Country Link
US (2) US4553228A (ja)
EP (2) EP0369989B1 (ja)
JP (4) JPS58185051A (ja)
CA (1) CA1190645A (ja)
DE (2) DE3381951D1 (ja)
FR (1) FR2523347B1 (ja)
HK (2) HK141593A (ja)
SG (1) SG34292G (ja)

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FR2581784B1 (fr) * 1985-05-10 1994-03-25 Thomson Alcatel Gigadisc Support d'information a pregravure et son dispositif de lecture optique
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JPH0782656B2 (ja) * 1986-07-11 1995-09-06 株式会社日立製作所 光デイスク装置
JPS63104225A (ja) * 1986-10-21 1988-05-09 Csk Corp 光記録媒体のトラツキング方式
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
US4819218A (en) * 1986-12-19 1989-04-04 Eastman Kodak Company Quasi-constant linear-velocity disk having corresponding radii of adjacent annular zones related by a rational number for distributing prerecorded indicia to form a coherent write clock signal
US4860271A (en) * 1987-03-13 1989-08-22 Pioneer Electronic Corporation Servo circuit for generating a tracking error signal for optical disk player
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
JPS63159977U (ja) * 1987-04-08 1988-10-19
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
US4779251A (en) * 1987-06-12 1988-10-18 Optimem Optical disk memory system with closed loop micro-jump between adjacent tracks
JP2653073B2 (ja) * 1987-08-21 1997-09-10 ソニー株式会社 ディスク状記録媒体
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
NL8800151A (nl) * 1988-01-22 1989-08-16 Philips Nv Werkwijze en inrichting voor het optekenen van een informatiesignaal.
EP0325329B1 (en) * 1988-01-22 1993-12-01 Koninklijke Philips Electronics N.V. Method of and apparatus for successively recording EFM-modulated signals
NL8800152A (nl) * 1988-01-22 1989-08-16 Philips Nv Optische uitleesbare registratiedrager van het beschrijfbare type, een inrichting voor het vervaardigen van een dergelijke registratiedrager, en inrichtingen voor het optekenen en/of uitlezen van informatie op/uit een dergelijke registratiedrager.
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
JP2703576B2 (ja) * 1988-10-03 1998-01-26 株式会社日立製作所 光デイスク装置
JPH0646487B2 (ja) * 1989-03-31 1994-06-15 キヤノン株式会社 情報記録再生方法、情報記録再生装置及び情報記録担体
US5148422A (en) * 1989-08-25 1992-09-15 Sony Corporation Optical recording medium having a data recording track with offset data storing regions
JPH03116538A (ja) * 1989-09-29 1991-05-17 Toshiba Corp 光ディスク
JP2804130B2 (ja) * 1989-12-06 1998-09-24 株式会社日立製作所 情報処理装置
JPH0478034A (ja) * 1990-05-15 1992-03-12 Toshiba Corp 光情報記録媒体及び光情報記録再生装置
US5268887A (en) * 1990-05-15 1993-12-07 Kabushiki Kaisha Toshiba Optical recording medium having offset-compensating areas
JP3033864B2 (ja) * 1991-10-31 2000-04-17 キヤノン株式会社 情報記録方法及びその情報再生装置
EP0562595A3 (en) * 1992-03-26 1994-07-06 Matsushita Electric Ind Co Ltd Apparatus for positioning optical head on a track of rotating disk
US5493561A (en) * 1992-06-17 1996-02-20 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and information recording and reproducing method thereof
EP0582446B1 (en) * 1992-07-31 2000-05-10 Matsushita Electric Industrial Co., Ltd. Optical data storage medium
JP3240762B2 (ja) * 1993-07-26 2001-12-25 ソニー株式会社 光記録媒体の再生方法及び再生装置
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EP1008985A2 (en) 1994-08-25 2000-06-14 Sony Corporation Optical disk
FR2731808B1 (fr) * 1995-03-14 1997-04-11 Thomson Csf Systeme de reglage de focalisation optique
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Also Published As

Publication number Publication date
EP0089263B1 (fr) 1990-10-24
JPH0344387B2 (ja) 1991-07-05
JP2842822B2 (ja) 1999-01-06
EP0369989B1 (fr) 1994-08-31
DE3382757T2 (de) 1994-12-22
CA1190645A (en) 1985-07-16
HK1006048A1 (en) 1999-02-05
HK141593A (en) 1993-12-31
US4553228A (en) 1985-11-12
JP2875113B2 (ja) 1999-03-24
FR2523347A1 (fr) 1983-09-16
JPH08235622A (ja) 1996-09-13
JPH10198966A (ja) 1998-07-31
EP0369989A2 (fr) 1990-05-23
US4674081A (en) 1987-06-16
DE3381951D1 (de) 1990-11-29
EP0369989A3 (en) 1990-06-27
EP0089263A1 (fr) 1983-09-21
JPH05197990A (ja) 1993-08-06
DE3382757D1 (de) 1994-10-06
JPS58185051A (ja) 1983-10-28
FR2523347B1 (fr) 1988-11-04

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