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公开(公告)号：US10755067B2
公开(公告)日：2020-08-25
申请号：US15933066
申请日：2018-03-22
Applicant: InvenSense, Inc.
Inventor： Etienne De Foras , Harihar Narasimha-Iyer , Daniela Hall , Jonathan Baudot , Bruno Flament
IPC: G06K9/00
Abstract: In a method for operating a fingerprint sensor including a plurality of ultrasonic transducers, receiving a plurality of images corresponding to different subsets of the ultrasonic transducers of the fingerprint sensor are received, wherein the plurality of images are non-adjacent. For each image of the plurality of images, it is determined whether the image of the plurality of images is indicative of a fingerprint. Provided a number of images of the plurality of images that are indicative of a fingerprint satisfies a threshold, it is determined whether the images of the plurality of images that are indicative of a fingerprint are collectively indicative of a fingerprint. Provided the plurality of images are collectively indicative of a fingerprint, it is determined that the plurality of images include a fingerprint.
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Patent Agency Ranking
公开(公告)号：US12002282B2
公开(公告)日：2024-06-04
申请号：US17001531
申请日：2020-08-24
Applicant: InvenSense, Inc.
Inventor： Etienne De Foras , Harihar Narasimha-Iyer , Daniela Hall , Jonathan Baudot , Bruno Flament
CPC classification number: G06V40/1306 , G06V40/1359 , G06V40/1382
Abstract: In a method for operating a fingerprint sensor including a plurality of ultrasonic transducers, receiving a plurality of images corresponding to different subsets of the ultrasonic transducers of the fingerprint sensor are received, wherein the plurality of images are non-adjacent. For each image of the plurality of images, it is determined whether the image of the plurality of images is indicative of a fingerprint. Provided a number of images of the plurality of images that are indicative of a fingerprint satisfies a threshold, it is determined whether the images of the plurality of images that are indicative of a fingerprint are collectively indicative of a fingerprint. Provided the plurality of images are collectively indicative of a fingerprint, it is determined that the plurality of images include a fingerprint.
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公开(公告)号：US10452887B2
公开(公告)日：2019-10-22
申请号：US15354876
申请日：2016-11-17
Applicant: InvenSense, Inc.
Inventor： James Christian Salvia , Hao-Yen Tang , Michael H. Perrott , Bruno W. Garlepp , Etienne De Foras
IPC: G06K9/00 , G06F1/3231 , G06F1/3287 , G06F3/043
Abstract: In a method for operating a fingerprint sensor comprising a plurality of ultrasonic transducers, a first subset of ultrasonic transducers of the fingerprint sensor are activated, the first subset of ultrasonic transducers for detecting interaction between an object and the fingerprint sensor. Subsequent to detecting interaction between an object and the fingerprint sensor, a second subset of ultrasonic transducers of the fingerprint sensor are activated, the second subset of ultrasonic transducers for determining whether the object is a human finger, wherein the second subset of ultrasonic transducers comprises a greater number of ultrasonic transducers than the first subset of ultrasonic transducers.
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公开(公告)号：US11288891B2
公开(公告)日：2022-03-29
申请号：US16659329
申请日：2019-10-21
Applicant: InvenSense, Inc.
Inventor： James Christian Salvia , Hao-Yen Tang , Michael H. Perrott , Bruno W. Garlepp , Etienne De Foras
IPC: G06K9/00 , G06F3/043 , G06F1/3231 , G06F1/3287 , G06V40/13 , G06V40/12
Abstract: In a method for operating a fingerprint sensor comprising a plurality of ultrasonic transducers, a first subset of ultrasonic transducers of the fingerprint sensor are activated, the first subset of ultrasonic transducers for detecting interaction between an object and the fingerprint sensor. Subsequent to detecting interaction between an object and the fingerprint sensor, a second subset of ultrasonic transducers of the fingerprint sensor are activated, the second subset of ultrasonic transducers for determining whether the object is a human finger, wherein the second subset of ultrasonic transducers comprises a greater number of ultrasonic transducers than the first subset of ultrasonic transducers.
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公开(公告)号：US11216641B2
公开(公告)日：2022-01-04
申请号：US16748578
申请日：2020-01-21
Applicant: InvenSense, Inc.
Inventor： Etienne De Foras
Abstract: In a method for operating a fingerprint sensor, a fingerprint capture operation is performed on a fingerprint of a finger contacting the fingerprint sensor. A finger lift action is detected. It is determined whether a latent fingerprint remains on a contact surface of the fingerprint sensor subsequent the finger lift action. If it is determined that a latent fingerprint remains on the contact surface of the fingerprint sensor subsequent the finger lift action, instruction on addressing the latent fingerprint is provided.
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公开(公告)号：US11151355B2
公开(公告)日：2021-10-19
申请号：US16236107
申请日：2018-12-28
Applicant: InvenSense, Inc.
Inventor： Jonathan Baudot , Etienne De Foras
Abstract: In a method for generating an estimated fingerprint image, a ridge/valley pattern of a fingerprint of a finger is received. A sensor image including a partial fingerprint of the finger is received. Ridge/valley characteristics of the fingerprint are extracted from the sensor image including the partial fingerprint. An estimated fingerprint image is generated based at least on the ridge/valley pattern of the fingerprint and the ridge/valley characteristics of the fingerprint.
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