Touch sensing circuit and its method for sensing multi-frequency signals

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United States of America Patent

PATENT NO 11768558
SERIAL NO

17552270

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

  • LX SEMICON CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chung, Hyun Soo Daejeon, KR 21 133
Jang, Jin Yoon Daejeon, KR 7 9
Kang, Mun Seok Daejeon, KR 21 34
Lee, Jae Hwan Daejeon, KR 61 255
Lee, Kyu Tae Daejeon, KR 38 219
Nam, Jeong Kwon Daejeon, KR 8 11
Yu, Yeon Ju Daejeon, KR 3 0
Yun, Hee Ra Daejeon, KR 7 9

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