Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Patent
1996-01-17
1999-05-04
Urban, Edward F.
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
4552401, 4552491, 330134, H03G 300
Patent
active
059013478
ABSTRACT:
A method and apparatus provides control of the gain of an input amplifier (306) in a radio receiver (300), such as in a radiotelephone handset (104). The radio receiver (300) includes an automatic gain control circuit (318). The automatic gain control circuit (318) includes a timer circuit (370) which provides asynchronous, digital automatic gain control circuit to perform a coarse gain adjustment. The automatic gain control circuit (318) further includes an integrator (366) which provides analog automatic gain control for providing remaining needed gain regulation. The automatic gain control circuit (318) provides substantial reduction in input signal acquisition time for the radio receiver (300).
REFERENCES:
patent: 4301445 (1981-11-01), Robinson
patent: 4514703 (1985-04-01), Maher et al.
patent: 4570127 (1986-02-01), Tanimoto et al.
patent: 4653117 (1987-03-01), Heck
patent: 5212827 (1993-05-01), Meszko et al.
patent: 5222253 (1993-06-01), Heck
patent: 5507023 (1996-04-01), Suganuma et al.
patent: 5548833 (1996-08-01), Townsend
Beladi S. Hossein
Borras Jaime A.
Chambers Mark J.
Motorola Inc.
Nguyen Lee
Rauch John G.
Urban Edward F.
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