Document Type and Number:
Japanese Patent JPS495027
Kind Code:
A
Abstract:
A method and device for controlling a motion picture projector by signals, a first signal being derived from the rotation of a drive motor and a second signal from control marks on the film. In the case of projectors having a claw transport system and a sectored rotating shutter a first signal is derived from the rotation of the said shutter, whilst a second signal is produced, not only in the case of the said projectors but also in the case of other types of projectors, by control marks on the film and appropriate sensing elements. Reliable stopping of the film at a specific frame can thus be achieved, as can troublefree and automatic switching-off of the film transport drive at the end of the film.
Application Number:
JP2865273A
Publication Date:
January 17, 1974
Filing Date:
March 13, 1973
Export Citation:
International Classes:
G03B21/00; G03B31/06; G09B5/02; (IPC1-7): G09B5/02
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