| 摘要 |
PURPOSE:To improve various characteristics by applying time axis compression to a luminance signal, a chrominance signal and an audio signal of an optical disk into a prescribed format signal and recording them. CONSTITUTION:A luminance signal for one horizontal period and two color difference signals (B-Y), (R-Y) by one horizontal period are subjected to time axis compression to form a time axis compression signal by one horizontal period and the audio signal is digitized to apply time axis compression and they are subject to time division multiplex processing and the result is recorded on the optical disk 1. Thus, even with the recording and reproducing characteristic to be nonlinear given to the disk 1 and the head 2, no cross modulation is caused between the luminance signal Y and the color difference signals (B-Y) and (R-Y) or the audio signal and the reproduced pattern with excellent S/N is obtained.
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