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:
Dec. 28, 2021

Filed:

Jan. 07, 2020
Applicant:

Seiko Instruments Inc., Chiba, JP;

Inventors:

Kenji Ogasawara, Chiba, JP;

Tamotsu Maesawa, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04C 3/14 (2006.01); H02P 8/02 (2006.01);
U.S. Cl.
CPC ...
G04C 3/143 (2013.01); H02P 8/02 (2013.01);
Abstract

There is provided a timepiece including a high-load rotation position detection unit that detects a high-load rotation position that is a rotation position of a wheel when a rotational load of a rotor that transmits rotor's rotation to the wheel and rotates a pointer clockwise is greater than that during normal hand movement and a drive signal output unit that outputs a sub-drive signal having energy greater than that of a main drive signal that is output during the normal hand movement and less than that of an auxiliary drive signal that is output when the rotor does not rotate by the main drive signal in a case where the rotation position of the wheel is the high-load rotation position.


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