公开(公告)号：US20220261132A1

公开(公告)日：2022-08-18

申请号：US17500108

申请日：2021-10-13

Applicant: Korea University Research and Business Foundation

Inventor： Chulwoo KIM ,  Soonsung AHN

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/046 ,  G06F3/0354

Abstract: Disclosed is electronic device for identifying touch position, touch system including electronic device, and operation method thereof.

公开(公告)号：US20220197443A1

公开(公告)日：2022-06-23

申请号：US17168387

申请日：2021-02-05

Applicant: Korea University Research and Business Foundation

Inventor： Chulwoo KIM ,  Soonsung AHN

IPC: G06F3/044 ,  G06F3/0354 ,  G06F3/046 ,  G06F3/041

Abstract: Disclosed is an electronic device, which includes a plurality of driving coils that are sequentially arranged in a first direction in a plan view, a plurality of sensing electrodes that are spaced and insulated from the plurality of driving coils and are sequentially arranged in a second direction orthogonal or pseudo-orthogonal to the first direction in a plan view, and a processor that is electrically connected with the plurality of driving coils and the plurality of sensing electrodes. At least one of the plurality of sensing electrodes is electrically coupled with a stylus excited by a magnetic field generated by the plurality of driving coils. The processor applies a driving signal to the plurality of driving coils, receives a response signal to the driving signal from the plurality of sensing electrodes, and identifies a contact location of the stylus based on the response signal.