US 12,032,773 B2
Touch controller, touch sensing device including the touch controller, operating method of touch controller
Sungyong Cho, Hwaseong-si (KR); Jinchul Lee, Seoul (KR); Yunrae Jo, Yongin-si (KR); Bumsoo Kim, Hwaseong-si (KR); Choonghoon Lee, Seoul (KR); and Yoon-Kyung Choi, Seongnam-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Apr. 12, 2023, as Appl. No. 18/299,361.
Application 18/299,361 is a continuation of application No. 17/397,223, filed on Aug. 9, 2021, granted, now 11,656,715.
Claims priority of application No. 10-2021-0001058 (KR), filed on Jan. 5, 2021.
Prior Publication US 2023/0266842 A1, Aug. 24, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/041 (2006.01); G06F 3/0354 (2013.01); G09G 3/3225 (2016.01); G06F 3/044 (2006.01)
CPC G06F 3/04162 (2019.05) [G06F 3/03545 (2013.01); G06F 3/0412 (2013.01); G06F 3/04164 (2019.05); G06F 3/04166 (2019.05); G09G 3/3225 (2013.01); G06F 3/0446 (2019.05); G09G 2320/0247 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A touch sensing device comprising:
a touch sensor array including at least one beacon driving section and at least one compensation section, the at least one beacon driving section including a plurality of first touch electrodes, and the at least one compensation section including a plurality of second touch electrodes; and
a touch controller connected to the touch sensor array through at least one first driving channel and at least one second driving channel,
wherein, during a first uplink period of a discovery mode between the touch sensing device and an active pen, the touch controller is configured to provide at least one beacon signal to the at least one first driving channel, and provide at least one compensation signal to the at least one second driving channel, the at least one compensation signal being an inverse of the at least one beacon signal, and
wherein, during a second uplink period of the discovery mode, the touch controller is configured to provide the at least one compensation signal to the at least one first driving channel, and provide the at least one beacon signal to the at least one second driving channel.