AUTHENTICATION METHOD, STORAGE MEDIUM, AND INFORMATION PROCESSING DEVICE

    公开(公告)号:US20230386251A1

    公开(公告)日:2023-11-30

    申请号:US18448699

    申请日:2023-08-11

    Inventor: Takahiro AOKI

    CPC classification number: G06V40/1365 G06V40/1347 G06V40/14 G06F21/32

    Abstract: An authentication method for a computer to execute a process includes when receiving biometric information from a user, specifying a plurality of feature points that correspond to feature points included in the received biometric information, from among feature points included in a plurality of registered pieces of biometric information; and determining a degree of influence, on an authentication result of the user, of similarity between features of the feature points included in the received biometric information and each of the specified plurality of feature points, based on the similarity between each of the specified plurality of feature points and each of the feature points included in the received biometric information.

    ULTRASONIC SENSOR DEVICE AND METHOD OF CONTROLLING THE SAME

    公开(公告)号:US20230386246A1

    公开(公告)日:2023-11-30

    申请号:US18322343

    申请日:2023-05-23

    CPC classification number: G06V40/1306 G06V40/1365

    Abstract: An ultrasonic sensor device includes a plurality of pixels each including an ultrasonic transducer, and a control circuit configured to control the plurality of pixels. Each of the plurality of pixels is configured to hold a signal received by the ultrasonic transducer therein and send the signal to the control circuit as a response signal. The control circuit is configured to acquire an excitation response signal, which is a response signal sent from a pixel after the ultrasonic transducer therein is excited, acquire a non-excitation response signal, which is a response signal sent from a pixel when the ultrasonic transducer therein is not excited, and correct the excitation response signal based on the non-excitation response signal.

    Electronic device including a fingerprint sensor

    公开(公告)号:US11830281B2

    公开(公告)日:2023-11-28

    申请号:US17873655

    申请日:2022-07-26

    Inventor: Jinho Kim

    CPC classification number: G06V40/1318 G06V40/1365 G02B3/08

    Abstract: An electronic device is provided. The electronic device includes a display panel, an image lens positioned under the display panel to form a fingerprint image by using light reflected from user fingerprints, an image sensor configured to convert an image into an electrical signal, a first aperture positioned on a first surface between the image lens and the image sensor to block a light component scattered on the display panel, a relay lens positioned between the first surface and the image sensor to collect light having passed through the first aperture to the image sensor, and a second aperture positioned on a second surface between the relay lens and the image sensor to block a light component scattered on the display panel.

    METHOD AND APPARATUS FOR DEVELOPING A FINGERPRINT RECOGNITION APPARATUS

    公开(公告)号:US20230326187A1

    公开(公告)日:2023-10-12

    申请号:US17714141

    申请日:2022-04-06

    Inventor: Adithya NARESH

    CPC classification number: G06V10/7747 G06V10/82 G06V40/1365

    Abstract: A method of training a fingerprint image enhancing engine for use in a fingerprint capturing device, and a corresponding apparatus and computer readable medium, include producing a synthetic image dataset comprising plural pairs of synthetic images. Each pair of synthetic images include a clean synthetic image and a raw synthetic image corresponding to the clean synthetic image. Each raw synthetic image is produced according to a model of the fingerprint capturing device. The method also includes training a neural network using the synthetic image dataset.

    FINGERPRINT DETECTION METHOD AND FINGERPRINT MODULE

    公开(公告)号:US20230316802A1

    公开(公告)日:2023-10-05

    申请号:US17992590

    申请日:2022-11-22

    Applicant: Silead Inc.

    Inventor: Heng Zhai Jun Yang

    CPC classification number: G06V40/1365 G06V10/26 G06V40/1306

    Abstract: The embodiments of the present disclosure provide a fingerprint detection method and a fingerprint module. The fingerprint detection method includes: dividing a detection area of the fingerprint module into a plurality of detection blocks, wherein each of the detection blocks comprises a plurality of detection units, and each of the detection units is corresponding to a grayscale value; scanning at least part of the detection blocks to obtain the grayscale values; determining whether each of the detection blocks is in a covered state based on the grayscale values; and counting the number of the detection blocks in the covered state, and sending a collection request to a host to inform the host to obtain a fingerprint image if the number thereof is not less than a coverage block threshold. The method avoids meaningless detection caused by a false touch, and ensures integrity of the fingerprint image collected later.

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