Method of recording information on a photographic film
AssigneeFuji Photo Film Co., Ltd.
InventorTatsuji Kitamoto
Life of this patent
Estimating the term…
Abstract
A method of recording information relating to an image photographed on a photographic film in which the photographic film comprises a magnetic track associated with each image frame for magnetically recording the information. Each magnetic track has two or more fields. The information is divided into sections which are each recorded onto any of the fields together with a start signal, an end signal, and an error detection and/or correction signal for each the information section. Consequently, even if the information to be recorded for each image frame is interrupted due to an error in the conveying speed of the film, a portion of the information can be read and utilized.
Claims21
A photographic film on which an image to be photographed is optically recorded, comprising:
- a plurality of image frames;
- and
- a single recording portion provided in association with each one of said image frames for recording image information associated with said image frame, said recording portion including two or more contiguous fields running along a direction in which said photographic film is conveyed so that two or more sections of image information are recorded in said fields, each of said sections of image information consisting of a portion of said image information and provided with at least a corresponding start signal and a corresponding end signal.
A photographic film comprising:
- a base;
- an emulsion layer provided on one surface of said base for optically recording a photographed image in a plurality of image frames;
- a substantially transparent magnetic recording layer provided on the other surface of said base for magnetically recording information;
- and
- at least one magnetic track formed in association with each individual image frame on said magnetic recording layer and extending in a direction parallel to a longitudinal direction of said photographic film, said tracks each including two or more contiguous fields running along a direction in which said photographic film is conveyed so that two or more sections of information, which are recorded in one of said fields and consist of a portion of said information, are each provided with at least a corresponding start signal, a corresponding end signal, and at least one of a corresponding error detection signal and a corresponding error correction signal.
A method of recording information on a photographic film for recording information relating to each image frame of said film on a recording portion provided in association with each one of said image frames, comprising the steps of:
- (a) dividing information to be recorded on said recording portion into two or more sections of information;
- and
- (b) recording each of said sections of information in a contiguous manner together with at least a corresponding start signal and a corresponding end signal for said each of said sections of information while conveying said photographic film.
A photographic device having film on which an image to be photographed is optically recorded, comprising:
- a plurality of image frame areas extending along the length of said film;
- a data recording portion associated with each of said image frames, said data recording portions being contiguous and extending in a direction of transport of said film;
- a plurality of start signals provided in each of said data recording portions;
- and
- a stop signal associated with each of said start signals.
A method of recording information on a recording track formed on photographic film, said recording track corresponding to an individual image frame formed on said film and positioned in an exposure position of a camera, said method comprising the steps of;
- transporting said film in a first direction to displace said individual image frame from said exposure position and to place an adjacent image frame at said exposure frame;
- recording said information on said recording track during said transporting step, said information being recorded as a plurality of sections of information arrayed in said first direction, each of said sections of information having a start signal and a stop signal associated therewith.
Dependencies are inferred from the claim text.