The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 12, 2021

Filed:

Sep. 19, 2018
Applicant:

Casio Computer Co., Ltd., Tokyo, JP;

Inventors:

Tatsuya Sekitsuka, Kunitachi, JP;

Takeshi Matsue, Kokubunji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/32 (2010.01); G04G 5/00 (2013.01); G01S 19/31 (2010.01); G04R 20/04 (2013.01);
U.S. Cl.
CPC ...
G01S 19/32 (2013.01); G01S 19/31 (2013.01); G04G 5/002 (2013.01); G04R 20/04 (2013.01);
Abstract

A satellite radiowave receiving device includes a receiver performing a receiving operation of radiowaves transmitted from a positioning satellite and a processor controlling a positioning operation. The processor performs the positioning operation within at least a predetermined maximum positioning interval from a last positioning operation using preliminarily obtained date and time information and valid positional information on the positioning satellite to obtain a current position of the satellite radiowave receiving device and date and time information. The processor causes the receiver to perform the receiving operation within at least a predetermined date and time updating interval shorter than the predetermined maximum positioning interval from a last time when date and time information is obtained from radiowaves transmitted from a positioning satellite to obtain date and time information without the positioning operation.


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