Patent ID: 9529339
Filing Date: 2016-12-27
CPC Classification: G01S,G04R

Claim Text:
1. A radio receiver comprising: a signal amplification unit configured to receive a radio wave transmitted from a positioning satellite and amplify a signal of the received transmitted radio wave; an acquisition unit to which the signal amplified by the signal amplification unit is input, the acquisition unit being configured to acquire a satellite signal containing position information and date and time information from the signal; and a control unit configured to obtain at least one of the position information and the date and time information from the satellite signal acquired by the acquisition unit, determine a reception condition of the transmitted radio wave based on at least one of a processing condition of the obtainment and a processing condition of the acquisition unit, and perform operation setting of a gain of the signal amplification unit according to the determined reception condition, wherein the control unit performs the operation setting so that the gain set in the operation setting when the reception condition is determined to be a first reception condition is smaller than the gain set in the operation setting when the reception condition is determined to be a second reception condition inferior to the first reception condition, and wherein the control unit determines the reception condition based on a number of satellite signals acquired by the acquisition unit in a predetermined acquisition period from a start of operation for the acquisition.