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. 07, 2025

Filed:

Nov. 19, 2020
Applicant:

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

Inventors:

Yuta Saito, Tachikawa, JP;

Yohei Kawaguchi, Akishima, JP;

Fumiaki Ochiai, Higashiyamato, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04C 3/14 (2006.01); G04B 19/02 (2006.01); G04C 3/00 (2006.01); H02P 8/02 (2006.01);
U.S. Cl.
CPC ...
G04B 19/02 (2013.01); G04C 3/008 (2013.01); G04C 3/14 (2013.01); H02P 8/02 (2013.01); G04C 3/143 (2013.01);
Abstract

An electronic watch includes a pointer; a stepping motor including a coil and configured to drive the pointer; a driving circuit configured to drive the stepping motor; an A/D converter configured to detect electromotive force generated in the coil due to an impact; and a CPU configured to control driving of the driving circuit. The CPU determines a direction in which the pointer is likely to be shifted, based on the electromotive force detected by the A/D converter, determines whether the pointer is shifted due to the impact, and upon determining that the pointer is shifted, corrects a position of the pointer in accordance with the direction in which the pointer is likely to be shifted.


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