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.
Patent No.:
Date of Patent:
Jun. 14, 2011
Filed:
Mar. 02, 2007
Teruhiko Fujii, Sayama, JP;
Isao Kitazawa, Shibuya-ku, JP;
Masaaki Namekawa, Kiyose, JP;
Takayuki Uchida, Tokorozawa, JP;
Takayuki Hasumi, Niiza, JP;
Takuji Ike, Nerima-ku, JP;
Teruhiko Fujii, Sayama, JP;
Isao Kitazawa, Shibuya-ku, JP;
Masaaki Namekawa, Kiyose, JP;
Takayuki Uchida, Tokorozawa, JP;
Takayuki Hasumi, Niiza, JP;
Takuji Ike, Nerima-ku, JP;
Citizen Holdings Co., Ltd., Tokyo, JP;
Abstract
An analog electronic watch of the present invention includes: a display unit () for displaying time with a position of a hand; a stepper motor () for driving the hand; a motor drive unit () for controlling driving of the stepper motor at a predetermined hand drive cycle at normal time; hand position detection means () for detecting a position of the hand; a hand position detection means control unit () for intermittently controlling driving of the hand position detection means () at a first detection cycle which is longer than the hand drive cycle; and a detection cycle changing unit () for instructing the hand position detection means () to change the detection cycle. When detecting a predetermined detection cycle changing condition, the detection cycle changing unit () changes a cycle at which the hand position detection means () detects a position of the hand, from the first detection cycle to a second detection cycle, while maintaining the hand drive cycle at which the stepper motor () drives the hand.