Anti-piracy video tape system has anti-piracy components added to the luminance signal and the color difference signals

摘要

An anti-piracy signal generating circuit for generating anti- piracy signal components on a video signal reproduced by a first video unit, the signal components being interleaved to a frequency f.sub.H in the band of the video signal in accordance with the video signal components and a signal superimposing circuit for superimposing the anti- piracy signal components intermittenly on the luminance signal, first color difference signal, and second color difference signal.