Noise detector circuit

Details Noise detector circuit Noise detector circuit

1978-08-03

1980-05-20

Stewart, David L.

Telecommunications

Receiver or analog modulated signal frequency converter

Plural receivers

179 1P, 455226, H04B 110

Patent

active

042041643

ABSTRACT:
A noise detector circuit for radio receivers is disclosed. The circuit includes a delay circuit for slightly delaying a received signal. A comparator compares the level of the received signal with the delayed signal to generate a pulse sequence having a number of pulses per unit that is proportional to the level of said noise. A counter counts the number of pulses to detect the level of the noise in the received signal.

REFERENCES:
patent: 3544900 (1970-12-01), Beyer
patent: 3961275 (1976-06-01), Kochsmeier
patent: 4630040 (1977-06-01), Harbert

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