Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Patent
1996-01-25
1998-05-26
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
4552342, 4552491, H04B 106, H04B 700
Patent
active
057582734
ABSTRACT:
A system and method for adjusting the dynamic range of a receiver in a communication system in which an input signal is attenuated by a calculated amount before the input signal is provided to a mixer in the receiver. The attenuation amount is set so that reciprocal mixing noise caused by mixing the input signal with the local oscillator phase noise in the mixer is reduced until the total noise is the receiver noise floor (the sum of thermal noise and receiver noise figure), without degrading the signal-to-noise ratio of the input signal.
REFERENCES:
patent: 3968438 (1976-07-01), Thanos
patent: 4000369 (1976-12-01), Paul, Jr. et al.
patent: 4083009 (1978-04-01), Bickford et al.
patent: 4169219 (1979-09-01), Beard
patent: 4198603 (1980-04-01), Aldridge et al.
patent: 4270222 (1981-05-01), Menant
patent: 4301445 (1981-11-01), Robinson
patent: 4531234 (1985-07-01), Bell
patent: 4553105 (1985-11-01), Sasaki
patent: 4829593 (1989-05-01), Hara
patent: 5204970 (1993-04-01), Stengel et al.
patent: 5204976 (1993-04-01), Baldwin et al.
patent: 5319702 (1994-06-01), Kitchin et al.
patent: 5452473 (1995-09-01), Weiland et al.
patent: 5507023 (1996-04-01), Suganuma et al.
Bhattacharya Sam
Eisenzopf Reinhard J.
Harris Corporation
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