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:
Nov. 23, 2021
Filed:
Jun. 10, 2020
Thales, Courbevoie, FR;
Philippe Coni, Merignac, FR;
Frédéric Renaud, Merignac, FR;
Jean-Christophe Abadie, Merignac, FR;
Siegfried Rouzes, Merignac, FR;
THALES, Courbevoie, FR;
Abstract
A touch surface includes an array of rows of electrodes, an input point on a row for injecting an input voltage (V), measuring an output voltage (V) at a second point in the row, p being the number of pitch spacings of the array separating the two points, the portion of the array between the first point and the second point being akin to an electric dipole of resistance (R(p)) and of capacitance (C), the output voltage (V) being equal to the product of the input voltage (V) and a transfer function represented by a complex function (H). The measurement includes extracting the amplitude (G) and the phase (φ) from the transfer function; and calculating a hybrid function (S(G, φ)) of the amplitude and of the phase, the hybrid function minimizing a sum (Σ) defined by