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. 10, 2017
Filed:
Jan. 04, 2015
Applicant:
Apple Inc., Cupertino, CA (US);
Inventor:
Raviv Erlich, Rehovot, IL;
Assignee:
APPLE INC., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01B 7/30 (2006.01); G02B 26/10 (2006.01); G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
G01B 7/30 (2013.01); G02B 26/0833 (2013.01); G02B 26/10 (2013.01); G02B 26/085 (2013.01);
Abstract
Mechanical apparatus includes a base and a moving element, which is mounted to rotate about an axis relative to the base. A capacitive rotation sensor includes at least one first electrode disposed on the moving element in a location adjacent to the base and at least one second electrode disposed on the base in proximity to the at least one first electrode. A sensing circuit is coupled to sense a variable capacitance between the first and second electrodes.