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. 24, 2016
Filed:
Nov. 15, 2011
Daniel H. Scharff, San Leandro, CA (US);
Joel C. Kent, Fremont, CA (US);
Kyu-tak Son, Mountain View, CA (US);
Daniel H. Scharff, San Leandro, CA (US);
Joel C. Kent, Fremont, CA (US);
Kyu-Tak Son, Mountain View, CA (US);
ELO TOUCH SOLUTIONS, INC., Menlo Park, CA (US);
Abstract
Surface acoustic waves in a radial pattern are used to detect touch. Different radial transducer arrangements may allow for locating multiple simultaneous touches without ambiguity. Instead of transmitting along a line to be reflected at multiple points, the surface acoustic waves are transmitted radially. The surface acoustic waves are transmitted along different angles in an angular span spread out over at least part of the touch region. Using acoustic waves traveling along intersecting paths, a point location of a touch may be determined by detection, in part, of at least one angle.