Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Patent
1991-08-05
1994-08-16
Urban, Edward F.
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
455254, 455266, 455307, H04B 110, H04B 126
Patent
active
053394542
ABSTRACT:
A radio receiver simultaneously achieves maximum sensitivity and minimum susceptibility to intermodulation distortion by employing wideband and narrowband automatic gain control which further selects the automatic gain control response in dependence on the detection of intermodulation distortion. An AGC signal is modified to improve sensitivity in the event of a low narrowband signal level except when intermodulation distortion is detected above a predetermined distortion level.
REFERENCES:
patent: 3947771 (1976-03-01), Mathews et al.
patent: 4388731 (1983-06-01), King
patent: 4776040 (1988-10-01), Ichikawa et al.
patent: 5001776 (1991-03-01), Clark
Sanyo Data Sheet for LA1170 FM Front End Circuit pp. 122-132.
Kennedy John F.
Kuo Yao H.
Ford Motor Company
May Roger L.
Mollon Mark
Urban Edward F.
Wisler Mark D.
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