PURPOSE: To prevent the occurrence of omission of a color difference signal and the deviation in color by generating a pulse for separating a time axis compression color difference signal and a time axis compression color difference signal and a time axis compression luminance signal at an accurate time position.

CONSTITUTION: A reproduced time division multiple signal is supplied to an automatic gain controlling circuit 40, and the level of a horizontal synchronizing signal is made nearly constant, and supplied to the first and second comparator circuits 41, 42. The comparator circuit 41 detects the level (a) of 1/3 of the horizontal synchronizing signal and applies a reset pulse to a counter 4. From that point of time, the counter 43 counts a clock pulse of fixed frequency and supplies the counted value to an adder 44. A constant corresponding to a time A stored beforehand in an ROM45 is supplied to the adder 45, and the sum of this constant and the counted value of the counter 43 is supplied to a count down counter 46. The comparator 42 detect the level (b) of 2/3 of the horizontal synchronizing signal, and supplies a pulse to the count down counter 46, and loads data of the adder 44. The pulse is generated when the counted value of the count down counter 46 is zero.