Biometric object sensor and method

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United States of America Patent

PATENT NO 9137438
SERIAL NO

13763377

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Abstract

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A biometric image sensor system and method is disclosed which may comprise a first light source having a first wavelength λ1, a second light source having a second wavelength λ2, a photodetector configured and positioned to receive light of the first wavelength λ1 and light of the second wavelength λ2 reflecting from a biometric object being imaged and to produce a first output indicative of the amount of reflectance of the light of the first wavelength λ1 and a second output indicative of the amount of reflectance of the light of the second wavelength λ2, and a computing device configured to compare the difference between the first output and the second output with an authenticity threshold.

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Patent Owner(s)

  • SYNAPTICS INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Erhart, Richard Alexander Tempe, US 43 1977
Jandu, Jaswinder Chandler, US 24 1354
Percy, Pamela Tempe, US 1 27
Thompson, Erik Jonathon Phoenix, US 34 1274

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