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:
Oct. 21, 2008
Filed:
Oct. 03, 2007
Rudolf Dinger, Saint-Aubin, CH;
Rudolf Dinger, Saint-Aubin, CH;
The Swatch Group Research and Development Ltd, Marin, unknown;
Abstract
The timepiece includes a motor which drives at least one hand via a gear reduction train (), and means () for detecting at least one angular reference position of an intermediate wheel () forming part of the gear reduction train. The detection means are provided for supplying a signal having a first value when the intermediate wheel is occupying the angular reference position (α) and for supplying a signal having a second value when the intermediate wheel () is occupying a second angular position (γ). The timepiece further includes identification () and comparison () means for determining, on the basis of the signals supplied by the detection means (), at least once per revolution of the intermediate wheel (), whether the real position of the intermediate wheel actually corresponds to the theoretical position thereof.