FR2149654A5 - - Google Patents

Info

Publication number
FR2149654A5
FR2149654A5 FR7130146A FR7130146A FR2149654A5 FR 2149654 A5 FR2149654 A5 FR 2149654A5 FR 7130146 A FR7130146 A FR 7130146A FR 7130146 A FR7130146 A FR 7130146A FR 2149654 A5 FR2149654 A5 FR 2149654A5
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
FR7130146A
Other languages
French (fr)
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.)
EXPL PROCEDES OPTO ELECT
Original Assignee
EXPL PROCEDES OPTO ELECT
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 EXPL PROCEDES OPTO ELECT filed Critical EXPL PROCEDES OPTO ELECT
Priority to FR7130146A priority Critical patent/FR2149654A5/fr
Application granted granted Critical
Publication of FR2149654A5 publication Critical patent/FR2149654A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/843—Television signal recording using optical recording on film
    • 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
    • G11B7/13—Optical detectors therefor
    • 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
FR7130146A 1971-08-18 1971-08-18 Expired FR2149654A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7130146A FR2149654A5 (en) 1971-08-18 1971-08-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7130146A FR2149654A5 (en) 1971-08-18 1971-08-18

Publications (1)

Publication Number Publication Date
FR2149654A5 true FR2149654A5 (en) 1973-03-30

Family

ID=9081982

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7130146A Expired FR2149654A5 (en) 1971-08-18 1971-08-18

Country Status (1)

Country Link
FR (1) FR2149654A5 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019378A1 (en) * 1979-05-14 1980-11-26 Xerox Corporation A digital optical memory
EP0019379A1 (en) * 1979-05-14 1980-11-26 Xerox Corporation A recording medium for a digital optical memory, and a memory using such a medium
WO1986002767A1 (en) * 1984-10-29 1986-05-09 Ncr Corporation Optical data reader
EP0205940A1 (en) * 1985-05-31 1986-12-30 Siemens Aktiengesellschaft Optical system for guiding the read-out beam in a magneto-optical memory
EP0282611A1 (en) * 1987-03-16 1988-09-21 Moshe Guez Method and apparatus for writing information on processed photographic film

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019378A1 (en) * 1979-05-14 1980-11-26 Xerox Corporation A digital optical memory
EP0019379A1 (en) * 1979-05-14 1980-11-26 Xerox Corporation A recording medium for a digital optical memory, and a memory using such a medium
WO1986002767A1 (en) * 1984-10-29 1986-05-09 Ncr Corporation Optical data reader
EP0205940A1 (en) * 1985-05-31 1986-12-30 Siemens Aktiengesellschaft Optical system for guiding the read-out beam in a magneto-optical memory
US4773053A (en) * 1985-05-31 1988-09-20 Siemens Aktiengesellschaft Optical system for guiding the read beam in a magneto-optical storage
EP0282611A1 (en) * 1987-03-16 1988-09-21 Moshe Guez Method and apparatus for writing information on processed photographic film

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Legal Events

Date Code Title Description
ST Notification of lapse