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. 30, 2019
Filed:
Jul. 20, 2017
Applicant:
Synaptics Incorporated, San Jose, CA (US);
Inventor:
Felix Schmitt, San Francisco, CA (US);
Assignee:
SYNAPTICS INCORPORATED, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G06F 3/01 (2006.01); G06F 3/044 (2006.01); G01R 31/28 (2006.01); G06F 3/03 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0416 (2013.01); G01R 31/2829 (2013.01); G06F 3/016 (2013.01); G06F 3/03 (2013.01); G06F 3/044 (2013.01); G06F 3/0412 (2013.01);
Abstract
A method and apparatus for applying a current to a shape memory alloy of an actuator; determining a first resistance of the shape memory alloy; determining, after measuring the first resistance, a second resistance of the shape memory alloy; performing a comparison between the first resistance and the second resistance to detect a resistance change; and ceasing, based on detection of the resistance change, application of the current to the shape memory alloy.