| 摘要 |
PROBLEM TO BE SOLVED: To provide a receiver device capable of setting the signal power of an added intermediate frequency signal to a maximum immediately after a power supply is turned on, when a plurality of receiving systems 1-3 are provided, and the receiving systems 1-3 comprise PLL circuits 19, 25, 31. SOLUTION: There are provided an adder 4 for output intermediate frequency signals from the receiving systems 1-3, a demodulator 5 for the added intermediate frequency signal, adjustable reference signal generating means 8-11 for supplying a phase-shifted reference signal to the PLL circuits 19, 25, 31 of the receiving systems 1-3, and a plurality of switches 12-14. Respective switching-on times of the switches 12-14 are controlled so that split reference signals in respective PLL circuits 19, 25, 31 are in-phase, and the adjustable reference signal generating means 8-11 are set upon the turning-on of the power supply to a stored phase-shift adjusted state immediately before the turning-off of the power supply. COPYRIGHT: (C)2003,JPO
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