FR2323166A1 - FM electronic system recorded on tape - for multiple slide projection has as many frequency modulated carriers as there are projectors - Google Patents

FM electronic system recorded on tape - for multiple slide projection has as many frequency modulated carriers as there are projectors

Info

Publication number
FR2323166A1
FR2323166A1 FR7527656A FR7527656A FR2323166A1 FR 2323166 A1 FR2323166 A1 FR 2323166A1 FR 7527656 A FR7527656 A FR 7527656A FR 7527656 A FR7527656 A FR 7527656A FR 2323166 A1 FR2323166 A1 FR 2323166A1
Authority
FR
France
Prior art keywords
projectors
frequency modulated
recording
carriers
tape
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.)
Withdrawn
Application number
FR7527656A
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.)
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 FR7527656A priority Critical patent/FR2323166A1/en
Publication of FR2323166A1 publication Critical patent/FR2323166A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/18—Devices for changing pictures in viewing apparatus or projectors with fade-in and fade-out effects
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • G03B31/06—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is associated with successively-shown still pictures

Abstract

The electronic system permits the automatic projection of slides from several projectors by means of electrical signals recorded on a magnetic tape. The system has as many frequency modulated low frequency carriers as there are projectors. These carriers are designed to produce all lighting effects and slide changing on each projector independent of the others. The frequency modulated carriers, controlling the projectors, are mixed so as to be recorded on a single track of a magnetic tape of a tape recorder, whilst at the same time acting directly on the projector in the "manual, recording" position. A filter separates at the recording position ("reproduction"), the carrier mixed during recording. The switching functions "manual recording", "reproduction" may be carried out automatically.
FR7527656A 1975-09-02 1975-09-02 FM electronic system recorded on tape - for multiple slide projection has as many frequency modulated carriers as there are projectors Withdrawn FR2323166A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7527656A FR2323166A1 (en) 1975-09-02 1975-09-02 FM electronic system recorded on tape - for multiple slide projection has as many frequency modulated carriers as there are projectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7527656A FR2323166A1 (en) 1975-09-02 1975-09-02 FM electronic system recorded on tape - for multiple slide projection has as many frequency modulated carriers as there are projectors

Publications (1)

Publication Number Publication Date
FR2323166A1 true FR2323166A1 (en) 1977-04-01

Family

ID=9159781

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7527656A Withdrawn FR2323166A1 (en) 1975-09-02 1975-09-02 FM electronic system recorded on tape - for multiple slide projection has as many frequency modulated carriers as there are projectors

Country Status (1)

Country Link
FR (1) FR2323166A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594041A1 (en) * 1986-02-07 1987-08-14 Jones Lawrence T ANIMATED PARLANTED DOLL.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594041A1 (en) * 1986-02-07 1987-08-14 Jones Lawrence T ANIMATED PARLANTED DOLL.

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Legal Events

Date Code Title Description
ST Notification of lapse