Patent ID: 7932856

Claim:
A satellite signal reception device, comprising: a reception unit that receives a satellite signal transmitted from a positioning information satellite; and a reception control component that controls the reception unit to execute a reception process, and includes a satellite signal search component that searches for the satellite signal by means of the reception unit, a reception mode selection component that selects either a time mode or a positioning mode according to the number of satellites from which a satellite signal was captured by the satellite signal search component, a positioning process component that executes a positioning process of receiving the satellite signals and acquiring positioning information by means of the reception unit when the reception mode selection component selects the positioning mode, and a timekeeping process component that executes a timekeeping process of receiving the satellite signals and acquiring time information by means of the reception unit when the reception mode selection component selects the time mode a timekeeping component that keeps time information; and a time adjustment component that adjusts the internal time information of the timekeeping component according to time information acquired by receiving the satellite signal, compares the acquired time information acquired from the satellite signal with the internal time information kept by the timekeeping component when the number of satellites captured by the satellite signal search component is 1, and corrects the internal time information according to the acquired time information when the difference between said time information is within a preset range, and compares the two acquired time information values acquired from the satellite signals when the number of satellites captured by the satellite signal search component is 2, and corrects the internal time information according to the acquired time information when said two values match.