Film transporting system including a counter and a film existence detector for a photographic camera

A film transporting system for a photographic camera, the film transporting system comprising:

• a film transporter selectively functioning to advance or rewind a film roll loaded in the camera;
• a counter mounted in the camera to count the number of used film frames on the film roll loaded in the camera and generating a count signal indicating the count;
• a film existence detector coupled to said counter and responsive said count signal from said counter to detect whether the camera has the film roll loaded therein, wherein said film existence detector only determines whether film is loaded in the camera when said count signal is "0";
• and
• a film travel detector selectively controlling film advance or film rewinding by detecting a film travel pulse output every time the film roll travels by a predetermined length and applying a film stop signal to said film transporter when the number of said travel pulses has reached a predetermined number;
• wherein said film transporter is not actuated when said film existence detector indicates that the camera has no film roll loaded therein;
• and
• wherein said predetermined length is dependent on whether said count signal is "0" when the film roll is loaded in the camera.

A film transporting system for a photographic camera, said film transporting system comprising:

• a film transporter selectively functioning to advance or rewind a film roll loaded in the camera;
• a counter counting the number of used film frames and generating a count signal;
• and
• a film existence detector coupled to said counter, said film existence detector responsive to said count signal applied from said counter for selectively detecting whether the camera has the film roll loaded therein, wherein said film existence detector only determines the presence of the film roll if said count signal is less than a predetermined number;
• and
• a control system coupled to said film existence detector for controlling operation of said film transporter such that initial film advance and advance of each film frame following said initial film advance is provided by said transporter if said film existence detector indicates that film is loaded in said camera.