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:
Aug. 14, 2018
Filed:
Jul. 20, 2017
Applicant:
Northwestern University, Evanston, IL (US);
Inventors:
James Edward Colgate, Evanston, IL (US);
Michael A. Peshkin, Evanston, IL (US);
John Glassmire, Seattle, WA (US);
Laura Winfield Alexander, Sunbury, OH (US);
Assignee:
NORTHWESTERN UNIVERSITY, Evanston, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G06F 3/045 (2006.01); G06F 3/01 (2006.01); G06F 3/0362 (2013.01); G06F 3/042 (2006.01);
U.S. Cl.
CPC ...
G06F 3/045 (2013.01); G06F 3/016 (2013.01); G06F 3/0362 (2013.01); G06F 3/041 (2013.01); G06F 3/0414 (2013.01); G06F 3/0421 (2013.01); G06F 2203/04104 (2013.01);
Abstract
A method of imitating a texture on a touch surface, the method including the steps of sensing a position of a user's finger on the touch surface, modulating a coefficient of friction of the touch surface in response to the sensed position of a user's appendage relative to the touch surface and/or a derivative thereof, where the friction modulator does not alter the contour of the touch surface in a manner that is perceptible to a user's sight or touch.