IDENTIFYING DEVICE AND IDENTIFYING METHOD USING REFLECTED LIGHT FROM A BODY OF A USER IRRADIATED BY PULSED LIGHT
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United States of America Patent
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Issued Date -
Feb 15, 2024
app pub date -
Oct 13, 2023
filing date -
May 30, 2018
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Abstract
An identifying device includes a light source, an image sensor, a memory that stores biometric data indicating a feature of a body of a user, and a processor. The processor causes the light source to emit pulsed light having a pulse duration of more than or equal to 0.2 ns and less than or equal to 1 μs to illuminate the user with the pulsed light, causes the image sensor to detect at least part of reflected pulsed light that returns from the user and to output a signal corresponding to two-dimensional distribution of an intensity of the at least part of the reflected pulsed light, and verifies the signal against the biometric data to identify the user.
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