G - Physics – 11 – B
Patent
G - Physics
11
B
352/18, 350/37,
G11B 5/02 (2006.01) H03C 3/00 (2006.01) H04N 9/79 (2006.01)
Patent
CA 1105129
ABSTRACT OF THE DISCLOSURE A method and apparatus, for supporting spurious interference components that arise in video recording apparatus, of the type which utilize frequency modulation of a carrier signal with a video signal, is disclosed. The invention suppresses an unwanted spurious interference signal component substantially to zero by generating the second harmonic of the video information modulating signal and adding the second harmonic to the modulating signal at a predetermined phase and amplitude prior to being modulated upon the carrier signal. The phase is such that the result- ing signal is that which, when the second harmonic is added, heightens the upward deviating peaks and flattens the lower peaks of the fundamental modulating signal. The amplitude of the second harmonic signal is added in direct proportion to the square of the modulating index of the modulating signal.
272121
Ampex Corporation
Macrae & Co.
LandOfFree
Moire interference reducing circuit for fm video recorders does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Moire interference reducing circuit for fm video recorders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moire interference reducing circuit for fm video recorders will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-695619