US 12,346,517 B2
Electronic device and control method therefor
Hwanhee Lee, Seongnam-si (KR); Seyeob Kim, Seongnam-si (KR); Bonkee Kim, Seongnam-si (KR); Hyoungwook Woo, Seongnam-si (KR); Kiryoung Jung, Seongnam-si (KR); and Wonwoo Lee, Seongnam-si (KR)
Assigned to HIDEEP INC., Seongnam-si (KR)
Filed by HiDeep Inc., Seongnam-si (KR)
Filed on Jan. 26, 2024, as Appl. No. 18/423,527.
Application 18/423,527 is a continuation of application No. 17/600,628, granted, now 11,886,656, previously published as PCT/KR2020/004166, filed on Mar. 27, 2020.
Claims priority of application No. 10-2019-0042053 (KR), filed on Apr. 10, 2019; and application No. 10-2020-0008828 (KR), filed on Jan. 22, 2020.
Prior Publication US 2024/0248559 A1, Jul. 25, 2024
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 3/0412 (2013.01); G06F 3/0442 (2019.05)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a touch sensor configured to sequentially transmit a plurality of first electromagnetic signals to a stylus pen, and to receive a plurality of second electromagnetic signals corresponding to the plurality of first electromagnetic signals from the stylus pen, wherein each of the plurality of first electromagnetic signals has different frequencies; and
a touch controller configured to determine a frequency of one of the plurality of first electromagnetic signals as a frequency of a third electromagnetic signal based on a change in magnitude or phase of the plurality of second electromagnetic signals and control the touch sensor to transmit the third electromagnetic signal.