发明名称 |
Satellite radio signal receiver, electronic timepiece, date and time information acquiring method and recording medium |
摘要 |
A satellite radio signal receiver includes a receiving section and a processor. The receiving section receives a radio signal from a satellite and demodulates the signal to identify each received bit of the signal. The processor compares the identified received bit with estimated bits which are estimated to be received within a possible deviation range set for a current date and time acquired as a reception time of the received bit, so as to obtain information on comparison result in relation to a deviation from the current date and time. The processor detects the deviation which satisfies a predetermined match condition of comparison results for received bits. The processor acquires date and time information based on the detected deviation which satisfies the predetermined match condition. |
申请公布号 |
US9575468(B2) |
申请公布日期 |
2017.02.21 |
申请号 |
US201615072632 |
申请日期 |
2016.03.17 |
申请人 |
CASIO COMPUTER CO., LTD. |
发明人 |
Matsue Takeshi;Abe Hideo |
分类号 |
G04R20/06;G01S19/25;G04R20/04;G01S19/14 |
主分类号 |
G04R20/06 |
代理机构 |
Scully, Scott, Murphy & Presser, P.C. |
代理人 |
Scully, Scott, Murphy & Presser, P.C. |
主权项 |
1. A satellite radio signal receiver, comprising:
a receiving section which receives a radio signal from a satellite and demodulates the signal to identify each received bit of the signal; and a processor; wherein the processor compares the identified received bit with estimated bits which are estimated to be received within a possible deviation range set for a current date and time acquired as a reception time of the received bit, so as to obtain information on comparison result in relation to a deviation from the current date and time, wherein the processor detects the deviation which satisfies a predetermined match condition of comparison results for received bits, and wherein the processor acquires date and time information based on the detected deviation which satisfies the predetermined match condition. |
地址 |
Tokyo JP |