Patent ID: 8817846

Claim:
A diversity reception device comprising: a plurality branches, each branch including: a correlation section that generates a correlation signal that represents one of a correlation between a received signal and a delayed signal in which the received signal is delayed or a correlation between the received signal and a reference signal, a level of the correlation signal disregarding a level of the received signal; a time position detector that detects time positions at which the level of the correlation signal generated by the correlation section is at a peak; a demodulation section that demodulates the received signal; and a multiplication section that multiplies a demodulated signal demodulated by the demodulation section with a weighting factor; a time interval detector that detects a time interval between two successive time positions detected by the time position detector, for every two successive time positions; and a calculation section that calculates a difference from an ideal time interval for each of the detected time intervals, a controller that controls the weighting factor of the multiplication section of each branch on the basis of the respective levels of the correlation signals at the time positions detected by the time position detectors of the respective branches; and a combining section that combines, by adding, the respective demodulated signals of the branches subsequent to the demodulated signal of each branch being multiplied with the weighting factor controlled by the controller; wherein the controller controls the weighting factor of the multiplication section of the each branch on the basis of the respective differences calculated by the calculation sections of the respective branches.