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Patent Searching and Data


Title:
DEVICE AND METHOD FOR RECOGNIZING TOUCH INPUT AND FINGERPRINT INPUT
Document Type and Number:
WIPO Patent Application WO/2018/143653
Kind Code:
A1
Abstract:
Disclosed are a device and a method for recognizing a touch input and a fingerprint input. The device for recognizing a touch input and a fingerprint input, according to one embodiment of the present invention, may comprise: a first sensor node which outputs a reference signal as a first current signal by using a first current conveyor; a second sensor node which, by using a second current conveyor, outputs a second current signal which is a combination of the reference signal and a sensor input signal; a subtraction unit which outputs the sensor input signal as a third current signal by subtracting the outputted first current signal from the outputted second current signal; and a signal transformation unit which transforms the outputted third current signal into a digital current signal and feeds back the transformed digital current signal, and transforms the outputted third current signal into a digital code on the basis of a ratio of the outputted third current signal and the fed back digital current signal.

Inventors:
CHAE YOUNG CHEOL (KR)
HWANG HYUN SEOK (KR)
Application Number:
PCT/KR2018/001302
Publication Date:
August 09, 2018
Filing Date:
January 31, 2018
Export Citation:
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Assignee:
INTERMATRIX (KR)
International Classes:
G06F3/044; G06K9/00; H03K17/96
Domestic Patent References:
WO2013001682A12013-01-03
Foreign References:
KR20110026812A2011-03-16
KR101649750B12016-08-19
KR101462226B12014-11-20
KR20040090473A2004-10-25
Attorney, Agent or Firm:
KIM, Youn Gwon (KR)
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