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US Patent 10997388 Darkfield contamination detection

Patent 10997388 was granted and assigned to Invensense, Inc. on May, 2021 by the United States Patent and Trademark Office.

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Patent abstract

In a method for evaluating a darkfield image for contamination, it is determined whether an object is interacting with a fingerprint sensor. Provided an object is not interacting with the fingerprint sensor, a darkfield candidate image is captured at a fingerprint sensor. The darkfield candidate image is evaluated for contamination. Based on the evaluating, it is determined whether the darkfield candidate image includes contamination.

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Patent Inventor Names
Bruno Flament0
Daniela Hall0
Etienne DeForas0
Harihar Narasimha-Iyer0
Jonathan Baudot0
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=109973880
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Infobox
Is a
Patent
Patent
0
Patent Applicant
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Invensense, Inc.
0
Current Assignee
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Invensense, Inc.
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
109973880
Date of Patent
May 4, 2021
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Patent Application Number
162704800
Date Filed
February 7, 2019
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=109973880
Patent Citations
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US Patent 10315222 Two-dimensional array of CMOS control elements
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US Patent 10275638 Methods of biometric imaging of input surfaces
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US Patent 10461124 Ultrasonic sensing device
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US Patent 10478858 Piezoelectric ultrasonic transducer and process
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US Patent 10539539 Operation of an ultrasonic sensor
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US Patent 10600403 Transmit operation of an ultrasonic sensor
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US Patent 10656255 Piezoelectric micromachined ultrasonic transducer (PMUT)
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US Patent 10670716 Operating a two-dimensional array of ultrasonic transducers
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US Patent 10706835 Transmit beamforming of a two-dimensional array of ultrasonic transducers
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US Patent 10755067 Operating a fingerprint sensor comprised of ultrasonic transducers
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Patent Primary Examiner
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Chuong A Ngo
0
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Website URL
https://pdfpiw.uspto.gov/.piw?Docid=10997388
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 US Patent 10997388 Darkfield contamination detection

Infobox
Is a
Patent
Patent
Patent applicant
‌
Invensense, Inc.
Current assignee
‌
Invensense, Inc.
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
10997388
Date of patent
May 4, 2021
Patent application number
16270480
Date Filed
February 7, 2019
Patent citations
‌
US Patent 10315222 Two-dimensional array of CMOS control elements
‌
US Patent 10275638 Methods of biometric imaging of input surfaces
‌
US Patent 10461124 Ultrasonic sensing device
‌
US Patent 10478858 Piezoelectric ultrasonic transducer and process
‌
US Patent 10539539 Operation of an ultrasonic sensor
‌
US Patent 10600403 Transmit operation of an ultrasonic sensor
‌
US Patent 10656255 Piezoelectric micromachined ultrasonic transducer (PMUT)
‌
US Patent 10670716 Operating a two-dimensional array of ultrasonic transducers
‌
US Patent 10706835 Transmit beamforming of a two-dimensional array of ultrasonic transducers
‌
US Patent 10755067 Operating a fingerprint sensor comprised of ultrasonic transducers
Patent primary examiner
‌
Chuong A Ngo

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