G - Physics – 11 – B
Patent
G - Physics
11
B
352/68
G11B 20/02 (2006.01) H04N 9/802 (2006.01) H04N 9/82 (2006.01)
Patent
CA 2032290
A video tape recorder for recording and/or reproducing a stereo frequency-modulated audio signal by a pair of carrier signals of an indispensable first carrier signal and an additional second carrier signal is comprised of a circuit for demodulating the second carrier signal to provide a demodulated output, and a comparator for comparing an amplitude of the demodulated output with a predetermined value, wherein when the amplitude of the demodulated output is below the predetermined value, it is determined that the second carrier signal exists.
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
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