公开(公告)号：US12111999B1

公开(公告)日：2024-10-08

申请号：US18242918

申请日：2023-09-06

Applicant: STMicroelectronics International N.V.

Inventor： Sang Soo Lee ,  MooKyung Kang

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04182 ,  G06F3/041662 ,  G06F3/0446 ,  G06F2203/04107

Abstract: According to an embodiment, a method for a touch scan is proposed. The method includes operating a device in first and second modes corresponding to the device, respectively, being wirelessly and not wirelessly charged. In each mode for each frame, the method includes dividing a frequency range corresponding to a touch-sensing technology into M or N positive integer numbers of equal and sequential frequency intervals, where N is greater than M. In the first mode, the method includes determining a first frequency interval of the M frequency intervals with the least noise and performing the touch scan using a first frequency within the first frequency interval. In the second mode for each frame, the method includes determining a second frequency interval of the N frequency intervals with the least noise and performing the touch scan using a second frequency within the second frequency interval.