Radio wave receiver, radio-controlled timepiece, signal obtaining method and storage medium

Abstract

A radio wave receiver includes a radio wave reception processor which receives radio waves and obtains signals transmitted from positioning satellites from the received radio waves; and a processor which sets reception start timing of the radio waves by the radio wave reception processor and controls the radio wave reception processor to start reception. The processor sets the reception start timing so that following reception conditions are satisfied: (i) a total power consumption amount of a power amount necessary for positioning and a power amount according to an obtaining upper limit time from start timing of a positioning operation by the radio wave reception processor to when the radio wave reception processor obtains signals necessary for computing a present position and the positioning operation is equal to or less than a predetermined upper limit power consumption amount, and (ii) the obtaining upper limit time is equal to or more than a predetermined reference time.