Control system for audio-visual projector

Details Control system for audio-visual projector Control system for audio-visual projector

G - Physics

11

B

88/62

G11B 31/00 (2006.01) G03B 31/00 (2006.01)

Patent

CA 1163480

TITLE CONTROL SYSTEM FOR AUDIO-VISUAL PROJECTOR ABSTRACT OF THE DISCLOSURE A system for the control, selection and synchroniza- tion of the movement of magnetic tape and filmstrip in a film projection system which may include a sound program. Film advance is synchronized with the sound reproduction by means of recorded signals on the magnetic tape which unambiguously specify the filmstrip frame number appropriate to the magnetic tape sound program. Means are provided to allow the operator to rapidly access a particular filmstrip frame by specifying its number. When a sound program is included, the invention assures automatic synchronization of the sound program with the filmstrip frame.

387986

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