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:
Aug. 01, 2017

Filed:

Apr. 22, 2015
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Katsuyuki Honda, Miyata-Mura, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/16 (2006.01); H04B 1/38 (2015.01); G04R 60/02 (2013.01); G04R 20/04 (2013.01);
U.S. Cl.
CPC ...
G04R 20/04 (2013.01);
Abstract

A radio signal receiver includes a GPS receiver circuit, an environment detection circuit (charging state detection circuit and voltage detection circuit) that detects is in an environment suited to the radio signal receiver receiving satellite signals, and a control circuit. The control circuit has a first reception control unit that operates the GPS receiver circuit when the radio signal receiver is determined to be in an environment suited to receiving satellite signals based on the result output by the environment detection circuit, a second reception control unit that operates the GPS receiver circuit at a scheduled reception time, and a switching unit that switches operation between the first reception control unit and second reception control unit.


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