公开(公告)号：US20190236325A1

公开(公告)日：2019-08-01

申请号：US15952429

申请日：2018-04-13

Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.

Inventor： Yang ZENG ,  Lihua WANG ,  Haochi YU ,  Liang XIE

IPC: G06K9/00

CPC classification number: G06K9/001 ,  G06K9/0004 ,  G06K9/0008

Abstract: A display apparatus and a fingerprint identification method are provided. An exemplary display apparatus includes a display region including a fingerprint identification region; a plurality of fingerprint identification pixels disposed in the fingerprint identification region and configured to provide a fingerprint identification light; a fingerprint identification array including fingerprint sensing units disposed in the fingerprint identification region and configured to receive the fingerprint identification light after being reflected by a touching body; and a controller electrically connected to the fingerprint sensing units and configured to obtain a whole image of a to-be-identified fingerprint, determine position coordinates of characteristic points on the display apparatus according to the whole image, control a first number of the fingerprint identification pixels to emit light according to the position coordinates to obtain local images at characteristic points of the to-be-identified fingerprint, and identify the to-be-identified fingerprint according to the local images.

公开(公告)号：US20190205604A1

公开(公告)日：2019-07-04

申请号：US16224137

申请日：2018-12-18

Applicant: Cypress Semiconductor Corporation

Inventor： Andriy Ryshtun ,  Viktor Kremin

IPC: G06K9/00 ,  G06F3/041

CPC classification number: G06K9/0008 ,  G06F3/041 ,  G06F2203/04105 ,  G06K9/0002 ,  G06K9/00107 ,  G06K9/00114

Abstract: A circuit, system, and method for measuring or detecting pressure or force of a fingerprint on an array of electrodes is described. Pressure or force may be measured or detected using a processed image of the fingerprint, or by measurement of capacitance of deformed variable capacitors.

公开(公告)号：US20190205590A1

公开(公告)日：2019-07-04

申请号：US16297093

申请日：2019-03-08

Applicant: MorphoTrack, LLC

Inventor： Peter Zhen-Ping Lo ,  Hui Chen

IPC: G06K9/00 ,  G06T7/00

CPC classification number: G06K9/001 ,  G06K9/00046 ,  G06K9/00067 ,  G06K9/0008 ,  G06T7/0002

Abstract: In one aspect, methods that use a novel representation, referred to as an octant feature vector (OFV), are used for matching distorted fingerprints. For instance, a feature-based matcher for distorted fingerprint matching may use a two-step local and global matching scheme to compare a set of feature vectors that are derived from minutiae of a reference fingerprint and a search fingerprint. The relative geometric relationships between the reference minutia and nearest minutiae may be derived and encoded into a feature vector based on orientation difference. The OFV is invariant to the rigid transformations and is insensitive to nonlinear distortions since the relative geometric relationships are independent from the rigid transformation.

公开(公告)号：US20190197287A1

公开(公告)日：2019-06-27

申请号：US16224587

申请日：2018-12-18

Applicant: LG Display Co., Ltd.

Inventor： Manhyeop HAN ,  Jiho CHO

IPC: G06K9/00 ,  G02B6/12 ,  G06F3/041 ,  G06F21/32 ,  H01L27/32

CPC classification number: G06K9/0004 ,  G02B6/12004 ,  G06F3/0412 ,  G06F21/32 ,  G06K9/0008 ,  G06K9/00087 ,  H01L27/3234

Abstract: A fingerprint recognition system may comprise: a display panel configured to display an image on a screen; a light source device configured to irradiate light onto a transparent substrate disposed on the screen of the display panel; an image sensor configured to obtain a fingerprint image with light reflected from a fingerprint contacting the transparent substrate on the screen; and an image sensor controller configured to control an exposure time of the image sensor to obtain the fingerprint image based on a contrast ratio of the fingerprint image.

公开(公告)号：US20190034690A1

公开(公告)日：2019-01-31

申请号：US16048575

申请日：2018-07-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dae-Kwang JUNG ,  Jung-Sik PARK

IPC: G06K9/00 ,  G02B5/30

CPC classification number: G06K9/00046 ,  G02B1/11 ,  G02B5/3025 ,  G02B5/3083 ,  G06K9/0004 ,  G06K9/0008

Abstract: According to an embodiment of the present disclosure, a display may comprise a transparent cover, a light source comprising light emitting circuitry configured to emit first light in a first direction, a first polarizer disposed between the light source and the cover and configured to linearly polarize the first light, and a first retarder disposed between the first polarizer and the cover and configured to change a polarization of the first light from a linear polarization to a non-linear polarization.

公开(公告)号：US10083339B2

公开(公告)日：2018-09-25

申请号：US15720408

申请日：2017-09-29

Applicant: AWARE, INC.

Inventor： James M. Maurer ,  L. Scott Hills

IPC: G06K9/00 ,  G06K9/03

CPC classification number: G06K9/0008 ,  G06K9/00067 ,  G06K9/00073 ,  G06K9/001 ,  G06K9/036 ,  G06K9/46 ,  G06K2009/4666 ,  G06T7/149 ,  G06T2210/12

Abstract: A ridge flow based fingerprint image quality determination can be achieved independent of image resolution, can be processed in real-time and includes segmentation, such as fingertip segmentation, therefore providing image quality assessment for individual fingertips within a four finger flat, dual thumb, or whole hand image. A fingerprint quality module receives from one or more scan devices ridge-flow-containing imagery which can then be assessed for one or more of quality, handedness, historical information analysis and the assignment of bounding boxes.

公开(公告)号：US20180268186A1

公开(公告)日：2018-09-20

申请号：US15988928

申请日：2018-05-24

Applicant: Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Inventor： Yibao Zhou

IPC: G06K9/00

CPC classification number: G06K9/001 ,  G06K9/00013 ,  G06K9/0002 ,  G06K9/0008

Abstract: A method for fingerprint identification and a terminal are provided. The method includes the follows. Source fingerprint data for fingerprint identification is acquired. Fingerprint data to be processed, whose fingerprint data value in a preset threshold range, is extracted from the source fingerprint data. A feature amplifying process is performed on the fingerprint data to be processed and the fingerprint data amplified is repaired to obtain repaired target fingerprint data. A three-dimensional surface is generated according to capacitance values of pixels of the target fingerprint data, a fingerprint image is simulated via the three-dimensional surface, and the simulated fingerprint image is compared with pre-stored fingerprint verification data. The source fingerprint data is determined to be identified successfully, based on a determination that the simulated fingerprint image matches the pre-stored fingerprint verification data.

公开(公告)号：US20180253582A1

公开(公告)日：2018-09-06

申请号：US15908014

申请日：2018-02-28

Applicant: Image Match Design Inc.

Inventor： Zhieng-Chung CHEN

IPC: G06K9/00

CPC classification number: G06K9/0008 ,  G06K9/00013 ,  G06K9/001 ,  G06K9/00114 ,  G06K9/036 ,  G06K9/26 ,  G06K9/4604 ,  G06K9/4642

Abstract: A method and circuit for fingerprint detection perform a first round of edge detection with a first parameter, and if a first value obtained during the first round of edge detection does not satisfy a predetermined threshold, perform a second round of edge detection with a second parameter, so as to allow a fingerprint that is not acceptable for the first parameter to be accepted for fingerprint recognition. If a second value obtained during the second round of edge detection does not satisfy the predetermined threshold neither, it is determined that the object subject to fingerprint detection is not a finger.

公开(公告)号：US10061971B2

公开(公告)日：2018-08-28

申请号：US14809202

申请日：2015-07-25

Applicant: QUALCOMM Incorporated

Inventor： Ming Li ,  Frederick W. Kiefer ,  John Keith Schneider ,  Tao Sheng ,  Alwyn Dos Remedios

IPC: G06K9/00 ,  G06K9/52

CPC classification number: G06K9/001 ,  G06K9/00013 ,  G06K9/0002 ,  G06K9/00026 ,  G06K9/0008 ,  G06K9/52

Abstract: Systems and methods for biometric authentication are disclosed. The invention may be used to authenticate an individual. At least two enrollment templates may be obtained at different times. Later, an inquiry template may be obtained and compared to each of the enrollment templates in separate and distinct comparison operations. The match scores arising from the comparison operations may be fused to provide a composite match score. The composite match score may be compared to an acceptance range. If the composite match score is within the acceptance range, the individual may be authenticated.

公开(公告)号：US10055637B2

公开(公告)日：2018-08-21

申请号：US15372207

申请日：2016-12-07

Applicant: Synaptics Incorporated

Inventor： James MacDonald ,  Jason Goodelle

IPC: G06K9/00 ,  H01L27/32

CPC classification number: G06K9/0008 ,  G06K9/00013

Abstract: An optical biometric sensor is disclosed. The optical biometric sensor includes a filter layer having a top surface and a bottom surface. The filter layer includes a light filter including a blocking material forming an array of apertures; a substrate including an electrical interconnect comprising a set of electrical conductors. The biometric sensor further includes an optical sensor including an array of sensing elements mounted to the bottom surface of the substrate, wherein sensing elements in the array of sensing elements sensors are aligned with the array of apertures and electrically connected to the electrical interconnect.