Patent ID: 9483030
Filing Date: 2016-11-01
CPC Classification: G04R

Claim Text:
1. A radio timepiece configured to receive standard radio waves having a time code and calibrate a time based on the standard radio waves, the radio timepiece comprising: an amplifier circuit configured to amplify a received signal of the standard radio waves; an automatic gain control circuit configured to adjust a gain of the amplifier circuit in accordance with strength of the received signal; a demodulating circuit configured to demodulate the received signal; a decoder unit configured to decode a signal demodulated by the demodulating circuit to acquire the time code; an error discernment unit configured to detect an error in the time code acquired by the decoder unit, an interference wave discernment unit configured to detect an interference wave based on data of the time code acquired by the decoder unit; and a receipt time determination unit configured to modify a receipt time based on an output of the automatic gain control circuit, detection result of the error discernment unit, and detection result of the interference wave discernment unit.