CA1200609A - Systeme optique d'extraction de donnees pour support de donnees reflechissant a caracteristiques multiples - Google Patents

Systeme optique d'extraction de donnees pour support de donnees reflechissant a caracteristiques multiples

Info

Publication number
CA1200609A
CA1200609A CA000434130A CA434130A CA1200609A CA 1200609 A CA1200609 A CA 1200609A CA 000434130 A CA000434130 A CA 000434130A CA 434130 A CA434130 A CA 434130A CA 1200609 A CA1200609 A CA 1200609A
Authority
CA
Canada
Prior art keywords
data
medium
optical
laser
silver
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
CA000434130A
Other languages
English (en)
Inventor
Jerome Drexler
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.)
Drexler Technology Corp
Original Assignee
Drexler Technology Corp
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 Drexler Technology Corp filed Critical Drexler Technology Corp
Application granted granted Critical
Publication of CA1200609A publication Critical patent/CA1200609A/fr
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
    • G11B7/24—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
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or 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
    • 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
    • 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
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Lasers (AREA)
CA000434130A 1982-08-09 1983-08-08 Systeme optique d'extraction de donnees pour support de donnees reflechissant a caracteristiques multiples Expired CA1200609A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40671982A 1982-08-09 1982-08-09
US406,719 1982-08-09

Publications (1)

Publication Number Publication Date
CA1200609A true CA1200609A (fr) 1986-02-11

Family

ID=23609170

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000434130A Expired CA1200609A (fr) 1982-08-09 1983-08-08 Systeme optique d'extraction de donnees pour support de donnees reflechissant a caracteristiques multiples

Country Status (5)

Country Link
JP (1) JPS5952436A (fr)
CA (1) CA1200609A (fr)
DE (1) DE3328368A1 (fr)
GB (1) GB2126406B (fr)
SE (1) SE8304295L (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570252A (en) * 1982-08-09 1986-02-11 Drexler Technology Corporation Optical data retrieval system using multi-spectral light sources
JPS62500620A (ja) * 1984-10-29 1987-03-12 エヌ・シ−・ア−ル・コ−ポレ−シヨン 光デ−タ・リ−ダ
JP2552109B2 (ja) * 1985-11-08 1996-11-06 セイコーエプソン株式会社 光記録再生装置
CA1294705C (fr) * 1986-04-09 1992-01-21 Wataru Sakagami Support d'enregistrement optique d'informations et appareil d'enregistrement etde lecture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145758A (en) * 1977-10-25 1979-03-20 Drexler Technology Corporation Error checking method and apparatus for digital data in optical recording systems

Also Published As

Publication number Publication date
SE8304295D0 (sv) 1983-08-05
JPS5952436A (ja) 1984-03-27
GB2126406B (en) 1986-12-17
DE3328368A1 (de) 1984-02-09
GB8320087D0 (en) 1983-08-24
SE8304295L (sv) 1984-02-10
GB2126406A (en) 1984-03-21

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Legal Events

Date Code Title Description
MKEX Expiry