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1.发明授权公开(公告)号：US11244139B2
公开(公告)日：2022-02-08
申请号：US16534574
申请日：2019-08-07
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yong Il Kwon , Min Gyu Kim , Sun Kwon Kim , Seong Il Park , Jong Sung Lee , Hee Bum Lee
Abstract: A fingerprint recognition device includes a display, a touch sensor panel (TSP) which senses a touch, and a fingerprint recognition integrated circuit (FPIC) which scans a fingerprint. The FPIC includes a pixel including a photoelectric element which receives light reflected by the fingerprint, a low noise amplifier (LNA) which outputs a signal voltage by converting an electric charge received from the photoelectric element, and an analog-to-digital converter (ADC) which converts the signal voltage into a digital signal. The ADC includes a variable reference voltage generator which provides a variable reference voltage, a comparator which adds the variable reference voltage to the signal voltage, performs correlated double sampling on the result of the addition, and outputs a comparison signal by comparing the result of the correlated double sampling with a ramp voltage, and a counter which outputs the digital signal by counting the comparison signal.
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2.发明授权公开(公告)号：US10122532B2
公开(公告)日：2018-11-06
申请号：US15176460
申请日：2016-06-08
Applicant: SAMSUNG ELECTRONICS, CO., LTD.
Inventor： Hee Bum Lee
Abstract: A security verification apparatus using biometric information and a security verification method are described. The security verification apparatus includes a sensor configured to acquire images of biometric information of a user, and scramble the images of the biometric information by using a received key matrix. The security verification apparatus further includes an information processor configured to generate the key matrix by using a random key, transmit the key matrix to the sensor, decode data of the scrambled images received from the sensor by using the key matrix, and verify the user.
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3.发明申请公开(公告)号：US20200218870A1
公开(公告)日：2020-07-09
申请号：US16534574
申请日：2019-08-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yong Il Kwon , Min Gyu Kim , Sun Kwon Kim , Seong Il Park , Jong Sung Lee , Hee Bum Lee
Abstract: A fingerprint recognition device includes a display, a touch sensor panel (TSP) which senses a touch, and a fingerprint recognition integrated circuit (FPIC) which scans a fingerprint. The FPIC includes a pixel including a photoelectric element which receives light reflected by the fingerprint, a low noise amplifier (LNA) which outputs a signal voltage by converting an electric charge received from the photoelectric element, and an analog-to-digital converter (ADC) which converts the signal voltage into a digital signal. The ADC includes a variable reference voltage generator which provides a variable reference voltage, a comparator which adds the variable reference voltage to the signal voltage, performs correlated double sampling on the result of the addition, and outputs a comparison signal by comparing the result of the correlated double sampling with a ramp voltage, and a counter which outputs the digital signal by counting the comparison signal.
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