公开(公告)号：US20210191559A1

公开(公告)日：2021-06-24

申请号：US16950077

申请日：2020-11-17

Applicant: The Swatch Group Research and Development Ltd

Inventor： Jean-Nicolas PFEUTI ,  Arnaud CASAGRANDE

IPC: G06F3/041 ,  G06F3/0488 ,  G06F3/044 ,  G06N20/00

Abstract: A method for detecting the presence and/or determine a position of an object on a measurement surface of an electronic device. The process includes: providing oscillating signal(s) at input points which are different and spaced from the array of electrodes in a detection area of the measurement surface; receiving oscillating signal(s) having passed through the array, which defines a transfer function of the signals, in output point(s) which are different and spaced from the array of electrodes in a detection area of the measurement surface; measuring a coupling or an attenuation induced by the presence on one or more oscillating signals passing through the array of electrodes of an object placed on the measurement surface in order to determine the position of the object in the detection area of the measurement surface depending on the modification of the transfer function of the array of electrodes.