Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector
Reexamination Certificate
2006-04-04
2011-10-11
Chen, Junpeng (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
With wave collector
C455S278100, C455S279100, C455S135000, C375S347000, C348S725000
Reexamination Certificate
active
08036621
ABSTRACT:
There is provided a receiving apparatus having a simple configuration and an excellent ability to eliminate multipath noise, in which an antenna in a good reception state can be instantly selected. A reception signal from an antenna is inputted to an intermediate-frequency amplifying circuit via an antenna switching circuit, a front end and an A/D converting circuit, and an S meter signal from an S meter circuit is inputted to a controlling section via a noise detecting filter and an absolute value circuit. Then, the controlling section compares noise components outputted from the absolute value circuit (noise level) with a threshold value Vth outputted from a threshold value setting section. When the noise level becomes higher than the threshold value Vth, an antenna selection controlling signal is outputted to the antenna switching circuit, and antennas are switched.
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Chen Junpeng
Fujitsu Ten Limited
Harness & Dickey & Pierce P.L.C.
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