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

IPC: G06K9/00 ,  G06F21/32 ,  G06F3/041

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.

公开(公告)号：US20170286748A1

公开(公告)日：2017-10-05

申请号：US15471269

申请日：2017-03-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sun Kwon KIM ,  Hyung Jong Ko ,  Seong Il Park

IPC: G06K9/00

CPC classification number: G06K9/00107 ,  G06K9/00087 ,  G06K9/00892 ,  G06K9/00899 ,  G06K2009/00939

Abstract: A sensor for increasing security using biometric data, a mobile device including the same, and an authentication method of the mobile device are provided. The sensor includes a fingerprint sensor configured to detect fingerprint data of a user contacting a fingerprint acquisition region, a plurality of electrodes, and a bio sensor connected to the electrodes to detect at least one type of biometric data. A first electrode among the electrodes is located such that a finger of the user contacts the first electrode when the finger of the user is in contact with the fingerprint acquisition region.

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

IPC: G06K9/00 ,  G06F21/32

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.

公开(公告)号：US10354120B2

公开(公告)日：2019-07-16

申请号：US15471269

申请日：2017-03-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sun Kwon Kim ,  Hyung Jong Ko ,  Seong Il Park

IPC: G06K9/00

Abstract: A sensor for increasing security using biometric data, a mobile device including the same, and an authentication method of the mobile device are provided. The sensor includes a fingerprint sensor configured to detect fingerprint data of a user contacting a fingerprint acquisition region, a plurality of electrodes, and a bio sensor connected to the electrodes to detect at least one type of biometric data. A first electrode among the electrodes is located such that a finger of the user contacts the first electrode when the finger of the user is in contact with the fingerprint acquisition region.