Apparatus for reproducing a color video signal

DETAILED DESCRIPTION Accordingly, it is an object of this invention to provide an improved color video signal reproducing apparatus which overcomes the above-described disadvantages.
It is another object of this invention to provide such a reproducing apparatus for simultaneously performing a timebase-error correction and a time-expansion of a time-compressed video signal.
In accordance with an aspect of this invention, chrominance component signals such as color difference signals (R-Y) and (B-Y) are time-compressed and serially recorded in one horizontal duration on a different track from a luminance component track.
Upon reproduction, the time-compressed chrominance component signals are written into a memory by a write clock which is locked with the synchronizing pulse of the chrominance component signals and read out from the memory by the reference read clock having a frequency corresponding to the compression ratio of the write clock frequency and thereby the chrominance component signals are time-expanded and the timebase-error is suppressed from the expanded chrominance component signals.
In accordance with another aspect of this invention, the reproduced luminance signal is written into another memory by a second write clock which is locked with the synchronizing pulse of the luminance signal and read out from another memory by the same reference read clock as used in read-out of the chrominance component signals, and thereby the luminance signal and the chrominance component signals are synchronously read out from the respective memories.
The other objects, features and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings through which the like references designate the same elements and parts.