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:
Feb. 25, 2014
Filed:
May. 14, 2010
Hamid Sheikhzadeh Nadjar, Waterloo, CA;
Joe Henry Babb, Knoxville, TN (US);
Robert L. Brennan, Kitchener, CA;
Steven W. Haungs, Mountain View, CA (US);
James R. Wynne, Jr., Kingston, TN (US);
Joel C. Kent, Fremont, CA (US);
Hamid Sheikhzadeh Nadjar, Waterloo, CA;
Joe Henry Babb, Knoxville, TN (US);
Robert L. Brennan, Kitchener, CA;
Steven W. Haungs, Mountain View, CA (US);
James R. Wynne, Jr., Kingston, TN (US);
Joel C. Kent, Fremont, CA (US);
Elo Touch Solutions, Inc., Menlo Park, CA (US);
Semiconductor Components Industries, LLC, Phoenix, AZ (US);
Abstract
A bending wave touch system includes at least one sensor and a touchscreen controller. The at least one sensor is coupled to a substrate and is responsive to vibrations in the substrate. The at least one sensor outputs signals. The controller receives the signals from the at least one sensor and identifies touch coordinates based on high frequency components of the signals when a touch on the substrate includes at least one of a tap, a drag and a lift-off. The controller identifies a status of a hold condition of the touch based on at least two different time averages of low frequency components of the signals.