Noise blanking circuit and method

Details Noise blanking circuit and method Noise blanking circuit and method

H - Electricity

04

B

325/120

H04B 1/10 (2006.01)

Patent

CA 1223305

IMPROVED NOISE BLANKING CIRCUIT AND METHOD ABSTRACT OF THE DISCLOSURE Noise blanking is provided by amplifying, limiting and detecting received signals. The detected signals are compared with a threshold circuit. The leading edge of each detected signal that rises at a rate greater than a selected rate to exceed an amplitude threshold level produces a blanking pulse of selected time duration. Low as well as high level noise signals are blanked. Slow rising information signals are not blanked, and fast rising information signals of high level are blanked initially for the selected time duration, but are not blanked thereafter.

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