Signal level indicator driving circuit

Details Signal level indicator driving circuit Signal level indicator driving circuit

1976-08-24

1978-12-05

Griffin, Robert L.

325455, H04B 126

Patent

active

041288106

ABSTRACT:
In a radio receiver circuit provided with an automatic gain control circuit, a tuning indicator driving circuit is connected to a point in the signal transmission line of the receiver circuit at which the ac voltage level is zero and the dc voltage level is controlled by the output of the automatic gain control circuit. The change of the dc voltage level is utilized to indicate the input signal level in an indicator.

REFERENCES:
patent: 2223188 (1940-11-01), Shofstall
patent: 2228858 (1941-01-01), Tellegen et al.
patent: 2259121 (1941-10-01), Temple
patent: 2836713 (1958-05-01), Scott et al.
patent: 3319004 (1967-05-01), Avins
patent: 3365669 (1968-01-01), Funaki et al.
patent: 3525045 (1970-08-01), Von Recklinghausen

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