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:
Oct. 08, 2002

Filed:

Nov. 22, 2000
Applicant:
Inventors:

Shinji Nakamiya, Matsumoto, JP;

Teruhiko Fujisawa, Shiojiri, JP;

Sho Matsuzaki, Chino, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B 1/00 ; G04B 9/00 ;
U.S. Cl.
CPC ...
G04B 1/00 ; G04B 9/00 ;
Abstract

An electronic timepiece comprises a battery, capable of charging, a charging section for charging the battery, a timepiece control circuit performing time keeping operation by using a stored electric power in the battery, a display for displaying time kept by the timepiece control circuit, a voltage detecting circuit for detecting a voltage of the stored voltage of the battery, and a charging detecting section for detecting a state of charging to the battery, and this timepiece, when the voltage of the stored voltage declines below a first prescribed voltage which is higher than an operation stop voltage of the timepiece control circuit, and non-charging state is detected for a prescribed time period, executes a forcible stop upon the time keeping operation by lowering or shutting off a current for the timepiece control circuit, and lifts the forcible stop when a prescribed operation return condition is satisfied.


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