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. 17, 2012
Filed:
Jul. 22, 2010
Tomohiro Ihashi, Chiba, JP;
Kenji Ogasawara, Chiba, JP;
Kazuo Kato, Chiba, JP;
Kazumi Sakumoto, Chiba, JP;
Hiroshi Shimizu, Chiba, JP;
Akira Takakura, Chiba, JP;
Eriko Noguchi, Chiba, JP;
Takanori Hasegawa, Chiba, JP;
Keishi Honmura, Chiba, JP;
Saburo Manaka, Chiba, JP;
Kosuke Yamamoto, Chiba, JP;
Tomohiro Ihashi, Chiba, JP;
Kenji Ogasawara, Chiba, JP;
Kazuo Kato, Chiba, JP;
Kazumi Sakumoto, Chiba, JP;
Hiroshi Shimizu, Chiba, JP;
Akira Takakura, Chiba, JP;
Eriko Noguchi, Chiba, JP;
Takanori Hasegawa, Chiba, JP;
Keishi Honmura, Chiba, JP;
Saburo Manaka, Chiba, JP;
Kosuke Yamamoto, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
Disclosed is a chronograph timepiece in which it is possible to prevent the chronograph drive timing and the magnetic field detection timing from overlapping each other to unnecessarily effect driving with correction drive pulses. A processing unit controls drive circuits so as to drive a time indication motor and a chronograph indication motor with a predetermined timing based respectively on timekeeping information obtained and chronograph measurement information obtained, and effects control such that a magnetic field detecting unit detects a magnetic field with a predetermined timing; when the drive timing for the chronograph indication motor and the magnetic field detection timing for the magnetic field detecting unit overlap each other, the processing unit changes the magnetic field detection timing for the magnetic field detecting unit so that the drive timing for the chronograph indication motor and the magnetic field detection timing for the magnetic field detecting unit may not overlap each other.