Material-discerning sensing by measurement of different points of impedance

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United States of America Patent

PATENT NO 9599739
APP PUB NO 20160070017A1
SERIAL NO

14480838

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Abstract

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A material-discerning proximity sensor is arranged to include an antenna that is arranged to radiate a radio-frequency signal. A capacitive sensor is arranged to detect a change in capacitance of the capacitive sensor and to receive the radio-frequency signal. An electrical quantity sensor is arranged to detect a change of the received radio-frequency signal and a change of a radio-frequency signal at an output of the at least one band pass filter.

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Patent Owner(s)

  • TEXAS INSTRUMENTS INCORPORATED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Leek, Alan H Frisco, US 3 7
Szmulewicz, Damian M Addison, US 3 7

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