Noise cancellation circuit

H - Electricity – 04 – N

Patent

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Details

350/81, 328/87

H04N 5/21 (2006.01)

Patent

CA 1115832

ABSTRACT OF THE DISCLOSURE The peak value of an input signal is detected for comparison with the instantaneous value of the input signal to control the detected peak value at a constant level in a feedback loop. When the instantaneous value of the input signal exceeds a certain limit established relative to the controlled peak level, an offset voltage is generated to cancel the noise.

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