System and method for processing analyte signals in GMR-based detection of biomarkers

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12241851
APP PUB NO 20210172927A1
SERIAL NO

15734395

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A signal processing system used for GMR-based detection of a target analyte in a sample under test, comprising: a measurement circuit configuration unit configured to build a GMR sensor measurement circuit by routing in at least one GMR sensor, and to build a reference resistor measurement circuit by routing in at least one reference resistor; a magnetic field excitation unit configured to apply an AC magnetic field of frequency ω2 to the at least one GMR sensor; a carrier signal applying unit configured to apply a carrier signal of frequency ω1 to the GMR sensor measurement circuit, and apply carrier signals of frequency ω1, ω1+ω2, and ω1−ω2 to the reference resistor measurement circuit; a measurement signal pick-up unit coupled to the measurement circuits, configured to collect reference resistor measurement signals from the reference resistor measurement circuit and GMR sensor measurement signals from the GMR sensor measurement circuit; and a phase sensitive solution unit coupled to the measurement signal pick-up unit, configured to analytically solve for resistance change of the at least one GMR sensor based on both the reference resistor measurement signals from the reference resistor measurement circuit and the GMR sensor measurement signals from the GMR sensor measurement circuit.

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Patent Owner(s)

  • ZEPTO LIFE TECHNOLOGY, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Klein, Todd Michael Wayzata, US 13 12
Sandstedt, Michael Monroe Reinhart Minneapolis, US 3 5
Song, Keping Lauderdale, US 2 3

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