The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2023
Filed:
Dec. 15, 2021
Lx Semicon Co., Ltd., Daejeon, KR;
Kyu Tae Lee, Daejeon, KR;
Mun Seok Kang, Daejeon, KR;
Jae Hwan Lee, Daejeon, KR;
Jeong Kwon Nam, Daejeon, KR;
Hyun Soo Chung, Daejeon, KR;
Jin Yoon Jang, Daejeon, KR;
Hee Ra Yun, Daejeon, KR;
Yeon Ju Yu, Daejeon, KR;
LX SEMICON CO., LTD., Daejeon, KR;
Abstract
The present disclosure provides a touch sensing circuit comprising an analog signal processing circuit configured to receive a plurality of sensing signals having different frequencies from touch electrodes; and a digital signal processing circuit configured to receive output data of the analog signal processing circuit and perform a discrete Fourier transform. In addition, the present disclosure provides a touch sensing circuit comprising the digital signal processing circuit of the touch sensing circuit that separates the plurality of sensing signals through the discrete Fourier transform and allowing a simultaneous sensing of a finger touch and a stylus pen touch.