Non-finger object rejection for fingerprint sensors

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United States of America Patent

PATENT NO 10460144
APP PUB NO 20180025199A1
SERIAL NO

15713346

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Abstract

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A method for detecting a finger at a fingerprint sensor includes detecting a presence of an object at a fingerprint sensor and, in response to detecting the presence of the object, acquiring image data for the object based on signals from the fingerprint sensor. The method further includes, for each subset of one or more subsets of the image data, calculating a magnitude value for a spatial frequency of the subset, and identifying the object as a finger based on comparing the magnitude value to a threshold.

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Patent Owner(s)

  • CYPRESS SEMICONDUCTOR CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kapshii, Oleg Lviv, UA 4 9
Kremin, Viktor Lviv, UA 91 2985
Rohozin, Oleksandr Lviv, UA 4 45
Ryshtun, Andriy Lviv, UA 47 1418

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