US 12,366,932 B2
Interference detection and mitigation in inductive sensor applications and dynamic adaptation based on real-time noise detection
Gregory C. Yancey, Austin, TX (US); Michael Kost, Cedar Park, TX (US); Tejasvi Das, Austin, TX (US); Siddharth Maru, Austin, TX (US); Matthew Beardsworth, Austin, TX (US); and Vadim Konradi, Austin, TX (US)
Assigned to Cirrus Logic Inc., Austin, TX (US)
Filed by Cirrus Logic International Semiconductor Ltd., Edinburgh (GB)
Filed on Jul. 8, 2021, as Appl. No. 17/370,479.
Application 17/370,479 is a continuation of application No. 16/679,773, filed on Nov. 11, 2019, granted, now 11,093,060.
Claims priority of provisional application 62/852,718, filed on May 24, 2019.
Claims priority of provisional application 62/848,718, filed on May 16, 2019.
Prior Publication US 2021/0357062 A1, Nov. 18, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/041 (2006.01); G01R 27/02 (2006.01); G01R 27/26 (2006.01); G06F 1/16 (2006.01)
CPC G06F 3/0412 (2013.01) [G01R 27/025 (2013.01); G01R 27/2605 (2013.01); G06F 1/1613 (2013.01); G01R 27/2611 (2013.01)] 46 Claims
OG exemplary drawing
 
1. A system comprising:
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.