Patent ID: 6122453
Filing Date: 2000-09-19
Classification: G03B

Abstract:
An apparatus for transporting a film in an APS camera and writing magnetic data on the film, the apparatus comprising:a single perforation sensing unit which senses a perforation formed in the film, and for outputting a signal according to the perforation sensed;a control unit which controls the transport of the film and the writing of the magnetic data in response to the signal outputted from the perforation sensing unit;a film transporting unit which transports the film to position a frame of the film for an exposure according to control signals received from the control unit; anda data writing unit which writes the magnetic data while the film is being transported to position the frame according to the control signals received from the control unit;wherein, the perforation sensing unit is configured to be initially located between a first perforation of a frame of the film which is being transported and a perforation of an immediately preceding frame;wherein the control unit is configured to calculate a transport speed of the film according to a time period during which the first perforation of the frame being transported is being sensed, and controls the writing speed of the magnetic data according to the transport speed.