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:
May. 05, 2015
Filed:
Apr. 23, 2012
Philip Jason Stephanou, Mountain View, CA (US);
Nicholas Ian Buchan, San Jose, CA (US);
David William Burns, San Jose, CA (US);
Kristopher Andrew Lavery, San Jose, CA (US);
Srinivasan Kodaganallur Ganapathi, Palo Alto, CA (US);
Philip Jason Stephanou, Mountain View, CA (US);
Nicholas Ian Buchan, San Jose, CA (US);
David William Burns, San Jose, CA (US);
Kristopher Andrew Lavery, San Jose, CA (US);
Srinivasan Kodaganallur Ganapathi, Palo Alto, CA (US);
QUALCOMM MEMS Technologies, Inc., San Diego, CA (US);
Abstract
A touch sensor may include a digital resistive touch (DRT) sensor architecture that is substantially free of air gaps. The DRT touch sensor may include a layer of force-sensitive resistor (FSR) material on an array of row and column electrodes. The electrodes may be formed on a substantially transparent substrate. Near the intersection of each row and column, one or more thin transparent patterned conductive bridges may be situated above the FSR. The conductive bridges may be configured for electrical connection with row and column electrodes when force is applied to the conductive bridge or surface of the touch sensor. Some touch sensors may include both DRT and projected capacitive touch (PCT) functionality.