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:
Sep. 27, 2011
Filed:
Jan. 23, 2008
Anders L Mölne, Cary, NC (US);
Joseph Carsanaro, Chapel Hill, NC (US);
Toni Leinonen, Oulu, FI;
Konstantin Klimov, Vladivostok, RU;
Anders L Mölne, Cary, NC (US);
Joseph Carsanaro, Chapel Hill, NC (US);
Toni Leinonen, Oulu, FI;
Konstantin Klimov, Vladivostok, RU;
F-Origin, Inc., Morrisville, NC (US);
Abstract
A software compensation method that allows a touch sensitive display to be built using low-cost FSR force sensors The compensation method comprises an array of functional compensation modules including filtering, voltage conversion, temperature compensation, humidity compensation, sensor calibration, sensor reading linearization, auto calibration, positioning determination and finally end-user and mechanical calibration. The array of compensation modules can bring system accuracy from a non-compensated average positioning error in the 25% to 50% range, down to aN end-user acceptable range of 0% to 5%. The increased positioning accuracy makes it possible to use FSRs as opposed to traditional piezoresistive based touch screen sensors.