Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1996-08-19
2000-05-16
Olms, Douglas W.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455280, 4552262, H04B 118, H04B 1700
Patent
active
060648686
ABSTRACT:
When mixed modulation signal may be erroneously determined to be a signal intended to be received by a particular receiver the receiver checks whether prevailing received signal is a signal intended to be received by that receiver. When the received signal intended is other than a signal to be received, by that receiver the receiver turns off an antenna tuner to prevent impedance matching between the antenna side impedance and the radio section side impedance. When the received signal intended is a signal to be received, by that receiver the receiver turns on the antenna tuner to allow impedance matching between the two impedances.
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patent: 5252963 (1993-10-01), Snowden et al.
patent: 5369799 (1994-11-01), Tsunoda
patent: 5410734 (1995-04-01), Choi et al.
patent: 5483688 (1996-01-01), English et al.
patent: 5493698 (1996-02-01), Suzuki et al.
patent: 5638054 (1997-06-01), Davis et al.
Olms Douglas W.
Vincent David R.
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