Automatic gain control system
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United States of America Patent
Stats
-
Oct 19, 1982
Grant Date -
N/A
app pub date -
Sep 17, 1980
filing date -
Sep 19, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic gain control for a receiver includes a gain controller for controlling the gain of the receiver, a control device connected to the tuning device of the receiver for varying and controlling the tuning frequency of the tuning device, and a level detector connected to the control device and the receiving signal system of the receiver for detecting the receiving level. The control device includes a calculation processor connected to the tuning device, the level detector and the gain controller, and the calculation processor includes a detector for detecting the absence or presence of other broadcasting waves (interference waves) in a predetermined relation with the receiving frequency of the receiver and for controlling the gain controller in such a manner as to reduce the gain thereof when the signal intensity of the interference broadcasting waves exceeds a predetermined level predetermined by the level detector.
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