Patent ID: 6041158
Filing Date: 2000-03-21
Classification: H04N

Abstract:
A method of allowing a direct reproduction of an analog color video signal and preventing said analog color video signal from being satisfactorily recorded and reproduced by an analog video recorder, wherein said analog color video signal includes a color burst signal of reference phase located in a burst interval in respective line intervals for reproducing said analog color video signal, said method comprising the steps of:generating a phase-shifted color burst signal which undergoes a time-axis expansion when recorded and reproduced by said analog video recorder; andinserting said phase-shifted color burst signal in a predetermined location for a predetermined duration in an area of said burst interval of reference phase such that said phase-shifted color burst signal does not significantly interfere with the direct reproduction of said color analog video signal based on the color burst interval of reference phase and said time-axis expansion of said phase-shifted color burst signal significantly interferes with the color burst signal of reference phase thereby inhibiting the reproduction of the recorded analog color video signal when recorded and reproduced by said analog video recorder.