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:
Apr. 23, 2019
Filed:
Sep. 22, 2015
Applicant:
The Swatch Group Research and Development Ltd, Marin, CH;
Inventors:
Assignee:
The Swatch Group Research and Development Ltd, Marin, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 5/14 (2006.01); G01S 5/00 (2006.01); G01S 5/22 (2006.01); G04C 3/00 (2006.01); G01S 5/18 (2006.01);
U.S. Cl.
CPC ...
G01D 5/14 (2013.01); G01S 5/0081 (2013.01); G01S 5/22 (2013.01); G04C 3/004 (2013.01); G01S 5/18 (2013.01);
Abstract
A position sensor and method for determining an axial and/or an angular position of a setting stem of a timepiece. A magnet is provided on the setting stem, and at least one magnetic field sensor is configured to detect changes in magnetic field strength along at least a first axis and a second axis as the rotatable element rotates; the second axis is not parallel to the first axis. The changing magnetic field sensed by the magnetic sensor is converted into a characteristic signature path which may then be mapped onto a circular signature path in two dimensions to derive the angular position of the setting stem.