Picture frame number discriminating method and apparatus therefo

Details Picture frame number discriminating method and apparatus therefo Picture frame number discriminating method and apparatus therefo

1988-10-17

1990-04-17

Hix, L. T.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

355 77, G03B 2752

Patent

active

049184849

ABSTRACT:
A photographic film is printed with numerical frame numbers and corresponding coded frame number bar codes. When a sensor completely reads a frame number bar code, a transportation quantity measuring unit starts measuring the transportation of the film to obtain a distance between the center of the film mask and the read frame number bar code or the associated frame number. The number of frames between the distance is obtained through division of the obtained distance by the pitch between frame number bar codes or frame numbers. A frame number of a frame positioned at the film mask is discriminated based on the obtained number of frames and the read frame number.

REFERENCES:
patent: 4825387 (1989-04-01), Ono

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