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:
Jun. 09, 2020
Filed:
Nov. 11, 2016
Elo Touch Solutions, Inc., Milpitas, CA (US);
David S. Hecht, San Carlos, CA (US);
Daniel H. Scharff, San Leandro, CA (US);
Joel C. Kent, Fremont, CA (US);
Kyu-Tak Son, Mountain View, CA (US);
Masao Takeuchi, Yokohama, JP;
ELO TOUCH SOLUTIONS, INC., Milpitas, CA (US);
Abstract
Systems and related methods providing for touch sensors using high sensitivity Lamb waves are disclosed herein. A touch controller may comprise circuitry having operating frequency characteristics, including an operating frequency f and a frequency spread Δf; and circuitry configured to minimize effects of dispersion based upon at least one of selected operating frequency characteristics relative to a frequency dependence of a group velocity of propagating waves and a frequency dependent phase error, wherein the touch controller generates an excitation signal.