Patent ID: 7269342

Claim:
An image signal reproduction apparatus for reproducing a main image signal including either a first type of image signal obtained by converting a film material image into an electrical signal or a second type of image signal including a video signal as a material thereof, using a transfer information including the main image signal and a determination flag for determining whether the main image signal is the first type of image signal or the second type of image signal, the apparatus including: a first timing signal generation section for outputting a first timing signal indicating a field to be repeatedly output in the case where the main image signal is the first type of image signal; a first material determination section for determining whether the main image signal is the first type of image signal or the second type of image signal, based on the determination flag; an interlaced scanned image signal reproduction section for converting the main image signal to an interlaced scanned image signal of 60 fields per second in response to an output of the first timing signal generation section when the first material determination section determines that the maim image signal is the first type of image signal, and outputting the main image signal as it is when the first material determination section determines that the main image signal is the second type of image signal; a field memory for storing 2 fields of outputs of the interlaced scanned image signal reproduction section; a field difference detection section for detecting a difference between an output of the interlaced scanned image signal reproduction section and an output of the field memory; a second material determination section for determining whether the main image signal is the first type of image signal or the second type of image signal, based on an output of the first material determination section or on outputs of the first timing signal generation section and the field difference detection section; a second timing signal generation section for generating a second timing signal indicating a breakpoint between frames of the film material in the interlaced scanned image signal, based on an output of the field difference detection section when the second material detection section detects that the main image signal is the first type of image signal; and a progressive scanning conversion section for obtaining a progressive scanned image signal by synthesizing 2 fields of interlaced scanned image signals of 60 fields per second in response to the second timing signal when a generation method of an insertion scanning signal is changed in response to an output of the second material determination section and the second material determination section determines that the main image signal is the first type of image signal.