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:
Jul. 03, 2012
Filed:
Jul. 14, 2010
Kazuo Kato, Chiba, JP;
Akira Takakura, Chiba, JP;
Kenji Ogasawara, Chiba, JP;
Saburo Manaka, Chiba, JP;
Kazumi Sakumoto, Chiba, JP;
Hiroshi Shimizu, Chiba, JP;
Tomohiro Ihashi, Chiba, JP;
Keishi Honmura, Chiba, JP;
Takanori Hasegawa, Chiba, JP;
Kosuke Yamamoto, Chiba, JP;
Eriko Noguchi, Chiba, JP;
Kazuo Kato, Chiba, JP;
Akira Takakura, Chiba, JP;
Kenji Ogasawara, Chiba, JP;
Saburo Manaka, Chiba, JP;
Kazumi Sakumoto, Chiba, JP;
Hiroshi Shimizu, Chiba, JP;
Tomohiro Ihashi, Chiba, JP;
Keishi Honmura, Chiba, JP;
Takanori Hasegawa, Chiba, JP;
Kosuke Yamamoto, Chiba, JP;
Eriko Noguchi, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
Disclosed is a chronograph timepiece in which it is possible to prevent a non-rotation state at the time of first driving when chronograph measuring operation is reset during motor drive and restarting is effected. When a resetting operation is performed on a reset button during the driving of a motor and a rotation detection circuit detects non-rotation, a drive control unit controls a drive pulse generation circuit such that the control is completed without reversing the polarity of a motor drive pulse output from the drive pulse generation circuit, and that the motor is driven by a drive pulse of the same polarity as that at the time of the previous resetting in response to a starting operation performed on a start/stop button, driving the motor by the drive pulse of the same polarity at the time of restarting after the resetting.