Acoustic biometric touch scanner
An acoustic biometric touch scanner device and method is disclosed. In one aspect, an acoustic fingerprint sensing device includes an array of ultrasonic transducers configured to transmit an ultrasound signal having a frequency in a range from 50 megahertz (MHz) to 500 MHz. The acoustic fingerprint...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
24.11.2020
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Subjects | |
Online Access | Get full text |
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