公开(公告)号：US20210357062A1

公开(公告)日：2021-11-18

申请号：US17370479

申请日：2021-07-08

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Gregory C. YANCEY ,  Michael KOST ,  Tejasvi DAS ,  Siddharth MARU ,  Matthew BEARDSWORTH ,  Vadim KONRADI

IPC: G06F3/041 ,  G01R27/02 ,  G01R27/26 ,  G06F1/16

Abstract: A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure phase information and amplitude associated with the resistive-inductive-capacitive sensor, and a noise detection circuit communicatively coupled to the measurement circuit and configured to determine a presence of external interference in the system based on at least one of the phase information and the amplitude information.