Noise riding threshold

Details Noise riding threshold Noise riding threshold

1975-03-10

1976-06-01

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307235R, 307264, 328162, 328167, H03B 104, H03K 508, H04B 110

Patent

active

039612740

ABSTRACT:
A network for sensing video noise power over a wide dynamic range and outting a voltage proportional to that noise power. The input signal is filtered, inverted and rectified to separate the noise component from the signal. The noise component is then converted to a negative level voltage which is added to first and second preset voltages. A non-linear output voltage which is a function of the first signal sum is provided for driving the voltage threshold devices in external equipment. A linear voltage output which is a function of the second signal sum is also provided for driving the voltage threshold devices of external equipment.

REFERENCES:
patent: 3311835 (1967-03-01), Richman
patent: 3548206 (1970-12-01), Ogle et al.
patent: 3706045 (1972-12-01), Salvert
patent: 3737790 (1973-06-01), Brown

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