US 11,995,262 B2
Touch apparatus and touch detection method thereof
Seyeob Kim, Seongnam-si (KR); and Bonkee Kim, Seongnam-si (KR)
Assigned to HIDEEP INC., Seongnam-si (KR)
Filed by HiDeep Inc., Seongnam-si (KR)
Filed on Jan. 5, 2023, as Appl. No. 18/093,444.
Application 18/093,444 is a continuation of application No. 17/253,296, granted, now 11,609,653, previously published as PCT/KR2019/006943, filed on Jun. 10, 2019.
Claims priority of application No. 10-2018-0079420 (KR), filed on Jul. 9, 2018; and application No. 10-2018-0118367 (KR), filed on Oct. 4, 2018.
Prior Publication US 2023/0161435 A1, May 25, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/041 (2006.01); G06F 3/0354 (2013.01); G06F 3/044 (2006.01)
CPC G06F 3/04162 (2019.05) [G06F 3/03545 (2013.01); G06F 3/04166 (2019.05); G06F 3/0446 (2019.05)] 18 Claims
OG exemplary drawing
 
1. A touch apparatus comprising:
a touch sensor: and
a touch controller that operates in a resonance driving mode during which a first driving signal is output for generation of a resonance signal of a stylus pen and an idle mode during which the outputting of the first driving signal is stopped, and obtains first touch coordinate information from a detection signal input from the touch sensor in response to the first driving signal,
wherein the touch controller obtains an effective signal by using a baseline signal, and the detection signal output from the touch sensor, and obtains the first touch coordinate information from the effective signal.