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:
Jul. 30, 2019
Filed:
Mar. 30, 2015
Texas Instruments Incorporated, Dallas, TX (US);
Dongtai Liu, Fremont, CA (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A capacitive sensing methodology is suitable for sensing touch position along a sensor track based on touch capacitance based on touch position and touch pressure. The method is operable with a capacitive sensor including first and second capacitive sensor electrodes juxtaposed in a complementary configuration to define the sensor track, the complementary first and second sensor electrodes configured such that, as touch position moves along the sensor track, the electrode capacitance Cof one sensor electrode monotonically decreases, and the electrode capacitance Cof the complementary other sensor electrode monotonically increases, so that the touch capacitance corresponds to a combination of Cand C. Pressure-compensated touch position data is generated from touch position information generated based on position and pressure functions, where the position function generates position information based on Cand C, and the pressure function generates pressure information based on Cand C.