公开(公告)号：US20190302161A1

公开(公告)日：2019-10-03

申请号：US16267079

申请日：2019-02-04

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Zhong YOU ,  Siddharth MARU ,  Tejasvi DAS ,  Luke LAPOINTE ,  Eric J. KING ,  Anthony S. DOY ,  Srdjan MARJIANOVIC ,  Drew KINNEY ,  Matthew BEARDSWORTH ,  Emmanuel MARCHAIS

IPC: G01R27/26 ,  G01R27/02

Abstract: A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure phase information associated with the resistive-inductive-capacitive sensor and based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor, wherein the displacement of the mechanical member causes a change in an impedance of the resistive-inductive-capacitive sensor.