GB770372A - Improvements in or relating to methods of synchronising the projection of a filmed image with the reproduction of the sound recorded on a magnetic, non-perforated tape - Google Patents

Improvements in or relating to methods of synchronising the projection of a filmed image with the reproduction of the sound recorded on a magnetic, non-perforated tape

Info

Publication number
GB770372A
GB770372A GB10401/55A GB1040155A GB770372A GB 770372 A GB770372 A GB 770372A GB 10401/55 A GB10401/55 A GB 10401/55A GB 1040155 A GB1040155 A GB 1040155A GB 770372 A GB770372 A GB 770372A
Authority
GB
United Kingdom
Prior art keywords
magnetic
signals
magnetic tape
carrying
sound
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
GB10401/55A
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.)
CHARLES OLIVERES
Original Assignee
CHARLES OLIVERES
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
Priority to FR770372X priority Critical
Application filed by CHARLES OLIVERES filed Critical CHARLES OLIVERES
Publication of GB770372A publication Critical patent/GB770372A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B31/00Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • G03B31/04Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is not on, but is synchronised with, a moving-picture film

Abstract

770,372. Combined sound and picture apparatus. OLIVERES, C. April 12, 1955 [June 9, 1954], No. 10401/55. Class 40 (2). In a method or apparatus for synchronizing a picture film with a magnetic tape sound record, the projector motor is controlled by relay means actuated by an amplifier supplied with synchronizing signals pre-recorded on the magnetic tape. In the embodiment described, a cine camera 21 taking the picture film, has a shaft 22 carrying a cam 23 which opens and closes a switch 24 in a circuit carrying a signal frequency to a recording head 26, so that intermittent signals 4 are recorded on a control track 3 of a magnetic tape carrying a sound track 2. When reproducing, the signals are utilized to control the projector motor 14 by means of a magnetic head which conveys signals to an amplifier 6 and a relay 7 to operate switches 9, 16 and a cam 15 coupled to the motor 14, comprising an electrical escapement system.
GB10401/55A 1954-06-09 1955-04-12 Improvements in or relating to methods of synchronising the projection of a filmed image with the reproduction of the sound recorded on a magnetic, non-perforated tape Expired GB770372A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR770372X 1954-06-09

Publications (1)

Publication Number Publication Date
GB770372A true GB770372A (en) 1957-03-20

Family

ID=9186558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10401/55A Expired GB770372A (en) 1954-06-09 1955-04-12 Improvements in or relating to methods of synchronising the projection of a filmed image with the reproduction of the sound recorded on a magnetic, non-perforated tape

Country Status (1)

Country Link
GB (1) GB770372A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266862A (en) * 1964-02-25 1966-08-16 Robert G Wagoner Projector synchronizer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266862A (en) * 1964-02-25 1966-08-16 Robert G Wagoner Projector synchronizer

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