FR2613865B1 - Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support - Google Patents

Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support

Info

Publication number
FR2613865B1
FR2613865B1 FR8803686A FR8803686A FR2613865B1 FR 2613865 B1 FR2613865 B1 FR 2613865B1 FR 8803686 A FR8803686 A FR 8803686A FR 8803686 A FR8803686 A FR 8803686A FR 2613865 B1 FR2613865 B1 FR 2613865B1
Authority
FR
France
Prior art keywords
medium
pregraved
mobile information
optical track
track tracking
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 - Lifetime
Application number
FR8803686A
Other languages
English (en)
Other versions
FR2613865A1 (fr
Inventor
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
Priority to FR8204218A priority Critical patent/FR2523347B1/fr
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR8803686A priority patent/FR2613865B1/fr
Publication of FR2613865A1 publication Critical patent/FR2613865A1/fr
Application granted granted Critical
Publication of FR2613865B1 publication Critical patent/FR2613865B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28Indexing; 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
    • G11B27/30Indexing; 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
    • G11B27/3027Indexing; 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/007Arrangement 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
    • G11B7/00745Sectoring or header formats within a track
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0938Disposition 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
FR8803686A 1982-03-12 1988-03-22 Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support Expired - Lifetime FR2613865B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8204218A 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
FR8803686A FR2613865B1 (fr) 1982-03-12 1988-03-22 Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8803686A FR2613865B1 (fr) 1982-03-12 1988-03-22 Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support

Publications (2)

Publication Number Publication Date
FR2613865A1 FR2613865A1 (fr) 1988-10-14
FR2613865B1 true FR2613865B1 (fr) 1995-09-01

Family

ID=26222806

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8803686A Expired - Lifetime FR2613865B1 (fr) 1982-03-12 1988-03-22 Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support

Country Status (1)

Country Link
FR (1) FR2613865B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
DE69328593T2 (de) * 1992-07-31 2001-01-04 Matsushita Electric Ind Co Ltd Optisches Speichermedium

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7314267A (nl) * 1973-10-17 1975-04-21 Philips Nv Registratiedrager waarop informatie is aangebracht in een optisch uitleesbare struktuur.
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
US4331976A (en) * 1976-04-08 1982-05-25 Victor Company Of Japan, Ltd. High density recording system using side-by-side information and servo tracks
JPS5382303A (en) * 1976-12-28 1978-07-20 Victor Co Of Japan Ltd Information recording panel and its reproducing system
US4364118A (en) * 1979-06-25 1982-12-14 Hitachi, Ltd. Optical disk and optical information processor
NL8000122A (nl) * 1980-01-09 1981-08-03 Philips Nv Schijfvormige, optisch uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen en/of weergeven van datainformatie in c.q. van zo'n registratiedrager.
US4443870A (en) * 1981-10-15 1984-04-17 Burroughs Corporation Optical memory system providing track following
US4402061A (en) * 1981-10-15 1983-08-30 Burroughs Corporation Preformatted optical media for use in an optical memory system
US4428075A (en) * 1981-12-21 1984-01-24 Burroughs Corporation Methods of preformatting an optical disk
FR2523349B1 (fr) * 1982-03-12 1984-04-20 Thomson Csf

Also Published As

Publication number Publication date
FR2613865A1 (fr) 1988-10-14

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