FR2048290A5 - - Google Patents

Info

Publication number
FR2048290A5
FR2048290A5 FR6943955A FR6943955A FR2048290A5 FR 2048290 A5 FR2048290 A5 FR 2048290A5 FR 6943955 A FR6943955 A FR 6943955A FR 6943955 A FR6943955 A FR 6943955A FR 2048290 A5 FR2048290 A5 FR 2048290A5
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
FR6943955A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR6943955A priority Critical patent/FR2048290A5/fr
Application granted granted Critical
Publication of FR2048290A5 publication Critical patent/FR2048290A5/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • 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
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • 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
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR6943955A 1969-12-18 1969-12-18 Expired FR2048290A5 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6943955A FR2048290A5 (fr) 1969-12-18 1969-12-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6943955A FR2048290A5 (fr) 1969-12-18 1969-12-18

Publications (1)

Publication Number Publication Date
FR2048290A5 true FR2048290A5 (fr) 1971-03-19

Family

ID=9044800

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6943955A Expired FR2048290A5 (fr) 1969-12-18 1969-12-18

Country Status (1)

Country Link
FR (1) FR2048290A5 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414237A1 (fr) * 1976-03-31 1979-08-03 Jacobs Eli S Appareil de lecture d'informations optiques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414237A1 (fr) * 1976-03-31 1979-08-03 Jacobs Eli S Appareil de lecture d'informations optiques

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Legal Events

Date Code Title Description
ST Notification of lapse