Motion picture camera with improved frame count indicator
AssigneeAgfa-Gevaert
InventorsEduard Wagensonner, Alfred Winkler, Friedrich Winkler
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Abstract
Pulses are furnished which each indicate transport of a frame. The pulses are counted on a BCD counter. Selected outputs of the counter are connected to the inputs of coupling stages, each including a JK flip-flop. Each flip-flop changes state for a predetermined count on the counter. When each flip-flop changes state, a corresponding indicator lights up, thereby furnishing an indication to the photographer of how many frames have been transported.
Claims8
In a motion picture camera having film including a plurality of frames and film-transport means for transporting said film, a frame counting and indicator arrangement, comprising, in combination, pulse generator means coupled to said film-transport means for generating at least one pulse for each frame transported by said film-transport means;
- counting means connected to said pulse generator means for counting the number of so-furnished pulses and furnishing counting signals signifying said number;
- a plurality of coupling means connected to said counting means, each for furnishing a coupling output signal in response to a corresponding one of said counting signals and for storing said coupling output signal thereby furnishing a stored coupling output signal;
- and a plurality of indicator means connected to said coupling means, each for furnishing a visual indication of a corresponding one of said stored coupling output signals, thereby furnishing an indication of the number of frames transported by said film-transport means.
Dependencies are inferred from the claim text.