US 12,443,311 B1
Touch screen display and method of operating the same
Hyeok Lim, Incheon (KR); and Chan Hyuck Yun, Yongin-si (KR)
Assigned to STMICROELECTRONICS INTERNATIONAL N.V., Geneva (CH)
Filed by STMicroelectronics International N.V., Geneva (CH)
Filed on Jul. 18, 2024, as Appl. No. 18/777,044.
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)] 20 Claims
OG exemplary drawing
 
1. A method for operating an electronic device, the method comprising:
simultaneously performing, during a first time duration, a first mutual sampling scan on a first portion of a touchscreen and a first noise sampling scan on a second portion of the touchscreen, the second portion being larger than the first portion of the touchscreen;
detecting noise values from the first noise sampling scan on the second portion of the touchscreen;
comparing the noise values to a noise profile corresponding to a predetermined frequency value of a touch controller;
adjusting the predetermined frequency value when at least one of the noise values exceed the noise profile corresponding to the predetermined frequency value; and
simultaneously performing, during a second time duration, a second mutual sampling scan on the first portion of the touchscreen and a second noise sampling scan on the second portion of the touchscreen, wherein the second portion of the touchscreen comprises a first sub-portion and a second sub-portion during the second time duration, the first portion being positioned between the first sub-portion and the second sub-portion during the second time duration.