Picture frame number discriminating method and apparatus therefor
AssigneeFuji Photo Film Co., Ltd.
InventorsYoichi Ujiie, Syuji Tahara
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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.
Claims11
A method of discriminating a frame number of a film, the photographic film of which is printed with frame numbers and coded frame number bar codes, and the frame number bar code is read with a sensor to discriminate a frame number of a frame on a film mask, comprising the steps of:
- measuring the transportation quantity of said film in synchronism with reading said frame number bar code;
- and
- calculating the frame number of a frame on said film mask in such a manner that a distance between the read frame number bar code or the associated frame number and the center of said film mask is obtained based on the transportation quantity of said film, the number of frames within said distance is obtained through division of said distance by a pitch between frame number bar codes, and the frame number of a frame on said film mask is calculated based on the number of frames and said read frame number.
An apparatus for discriminating a frame number of a photographic film which is printed with frame numbers and coded frame number bar codes, and the frame number bar code is read with a sensor to discriminate a frame number of a frame on a film mask, comprising:
- transportation means for transporting said film toward a film mask;
- transportation quantity measuring means for measuring the transportation quantity of said film in synchronism with reading said frame number bar code with said sensor;
- and
- calculating means for calculating the frame number of a frame on said film mask in such a manner that a distance between the read frame number bar code, or the associated frame number, and the center of said film mask is obtained based on the transportation quantity of said film, the number of frames between said distance is obtained through division of said distance by a pitch between frame number bar codes, and the frame number of a frame on said film mask is calculated based on the number of frames on said read frame number.
Dependencies are inferred from the claim text.