US 12,111,999 B1
Dynamic noise monitoring setting for wireless charger noise
Sang Soo Lee, Seoul (KR); and MooKyung Kang, Seoul (KR)
Assigned to STMicroelectronics International N.V., Geneva (CH)
Filed by STMicroelectronics International N.V., Geneva (CH)
Filed on Sep. 6, 2023, as Appl. No. 18/242,918.
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/04182 (2019.05) [G06F 3/041662 (2019.05); G06F 3/0446 (2019.05); G06F 2203/04107 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for a touch scan operation in an electronic device with a touchscreen display, the method comprising:
operating the electronic device in a first operating mode corresponding to the electronic device being wirelessly charged, wherein, in the first operating mode for each frame, the method comprises:
dividing a frequency range corresponding to a touch-sensing technology for the touch scan operation into M number of equal and sequential frequency intervals, M being a positive integer,
determining a first frequency interval of the M number of equal and sequential frequency intervals, the first frequency interval being an interval with least noise within the M number of equal and sequential frequency intervals, and
performing the touch scan operation using a first frequency within the first frequency interval; and
operating the electronic device in a second operating mode corresponding to the electronic device no longer being wirelessly charged, wherein, in the second operating mode for each frame, the method comprises:
dividing the frequency range corresponding to the touch-sensing technology for the touch scan operation into N number of equal and sequential frequency intervals, N being a positive integer greater than M,
determining a second frequency interval of the N number of equal and sequential frequency intervals, the second frequency interval being an interval with least noise within the N number of equal and sequential frequency intervals, and
performing the touch scan operation using a second frequency within the second frequency interval.