SE8304295L - Lasersystem for lesning av data - Google Patents

Lasersystem for lesning av data

Info

Publication number
SE8304295L
SE8304295L SE8304295A SE8304295A SE8304295L SE 8304295 L SE8304295 L SE 8304295L SE 8304295 A SE8304295 A SE 8304295A SE 8304295 A SE8304295 A SE 8304295A SE 8304295 L SE8304295 L SE 8304295L
Authority
SE
Sweden
Prior art keywords
data
prerecorded
particulate matter
disk
light
Prior art date
Application number
SE8304295A
Other languages
English (en)
Swedish (sv)
Other versions
SE8304295D0 (sv
Inventor
J Drexler
Original Assignee
Drexler Tech
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 Tech filed Critical Drexler Tech
Publication of SE8304295D0 publication Critical patent/SE8304295D0/xx
Publication of SE8304295L publication Critical patent/SE8304295L/xx

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)
SE8304295A 1982-08-09 1983-08-05 Lasersystem for lesning av data SE8304295L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40671982A 1982-08-09 1982-08-09

Publications (2)

Publication Number Publication Date
SE8304295D0 SE8304295D0 (sv) 1983-08-05
SE8304295L true SE8304295L (sv) 1984-02-10

Family

ID=23609170

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8304295A SE8304295L (sv) 1982-08-09 1983-08-05 Lasersystem for lesning av data

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
CA1200609A (fr) 1986-02-11
GB2126406B (en) 1986-12-17
DE3328368A1 (de) 1984-02-09
GB8320087D0 (en) 1983-08-24
GB2126406A (en) 1984-03-21

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Legal Events

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NAV Patent application has lapsed

Ref document number: 8304295-2

Effective date: 19880603