Patent ID: 7212733

Claim:
An image signal processing device for generating and outputting a 30 Hz time code corresponding to an image signal of 30 frames/second format from a 24 Hz time code corresponding to an image signal of 24 frames/second format in reproducing the image signal from a recording reproducing medium having the image signal of 24 frames/second format recorded thereon, the image signal processing device comprising: a phase standard position signal generator for generating a phase standard position signal of a predetermined period indicating a phase standard position of the image signal; a recorder for recording the phase standard position signal into the recording reproducing medium; a reproducer for reproducing the phase standard position signal from the recording reproducing medium; a phase standard position sensor for sensing the phase standard position of the reproduced image signal on the basis of the phase standard position signal reproduced from the recording reproducing medium; a counter for performing frequency multiplication of the phase standard position signal reproduced from the recording reproducing medium with the use of the phase standard position sensed by the phase standard position sensor as a base point, and for counting a period of the frequency-multiplied signal; a time code reader for reading the 24 Hz time code recorded in the recording reproducing medium; and a time code generator for generating the 30 Hz time code on the basis of a counted value given by the counter and a 24 Hz time code value read by the time code reader.