System and method for diversity reception of signals

Details System and method for diversity reception of signals System and method for diversity reception of signals

H - Electricity

04

B

325/74

H04B 7/08 (2006.01)

Patent

CA 1282119

ABSTRACT OF THE DISCLOSURE A diversity reception of signals involves first and second mobile receivers which recover first and second baseband signals. The first and second receivers have first and second wave detectors, respectively, for generating output voltages corresponding to the strength of an FM modulated signal. When the difference in output voltages between the first and second detectors exceeds a predetermined value, a comparator gives an output detection sig- nal. An adder circuit combines the first and second recovered baseband signals. First and second switching circuits selec- tively cut off the lower level one of the first or second re- covered signal, which is then being supplied to the adder cir- cuit. A third switching circuit adjusts the gain of the adder circuit. When the comparator does not give an output detection signal, the first and second switching circuits feed both the first and second recovered baseband signals to the adder circuit. At the same time, the third switching circuit reduces the gain of the adder circuit by one-half.

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