Video disk player with disk code demodulation using reproduced sync signal

Claim 1

A disk player for playing a disk carrying thereon an information signal including a composite video signal having at a preselected section thereof a disk code modulated by a modulation method comprising: a play means for playing said disk so as to read said information signal from said disk; a separation means for separating a synchronizing signal and a disk code from the composite video signal contained in said information signal; a clock pulse generation means for generating clock pulses of a frequency corresponding to the frequency of the synchronizing signal separated by said separation means; a demodulation means for demodulating the disk code separated by said separation means by using said clock pulses; and a controller for controlling said play means on the basis of the output of said demodulation means.