公开(公告)号：US20220198227A1

公开(公告)日：2022-06-23

申请号：US17212880

申请日：2021-03-25

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Josh SANZ-ROBINSON ,  Siddharth MARU ,  Rahul GAWDE ,  Jon D. HENDRIX ,  Eric LINDEMANN ,  Pablo PESO PARADA

IPC: G06K9/62 ,  G01L1/14 ,  H03K17/96

Abstract: A classification system for classifying sensor samples in a sensor system, the sensor system comprising N force sensors each configured to output a sensor signal, where N≥1, each sensor sample comprising N sample values from the N sensor signals, respectively, the classification system comprising: a classifier configured, for each of a series of candidate sensor samples, to perform a classification operation based on the N sample values concerned and generate a classification result which labels the candidate sensor sample as indicative of a defined target event, thereby generating a series of classification results corresponding to the series of candidate sensor samples, respectively; a determiner configured to output at least one event determination based on the series of classification results; and a controller configured to control the classifier and/or the determiner based on one or more controller input signals.

公开(公告)号：US20220029505A1

公开(公告)日：2022-01-27

申请号：US17497110

申请日：2021-10-08

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Aleksey KHENKIN ,  Siddharth MARU ,  Tejasvi DAS ,  Emmanuel MARCHAIS ,  Vadim KONRADI ,  Viral PARIKH ,  Jon D. HENDRIX ,  Marco A. JANKO

IPC: H02K7/065 ,  G01D5/243 ,  H02K41/03 ,  G06F3/01 ,  G01R27/26

Abstract: A system for detecting displacement of a movable member of an electromagnetic transducer having a magnetic coil-driven linear actuator with a static member and a movable mass mechanically coupled to the static member and having a back electromotive force present across terminals of a coil of the electromagnetic transducer is provided. The system may include a resistive-inductive-capacitive sensor comprising the coil, a driver configured to drive the resistive-inductive-capacitive sensor with a driving signal, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure one or more of phase information and amplitude information associated with the resistive-inductive-capacitive sensor and based on the one or more of phase information and amplitude information, determine a displacement of movable mass, wherein the displacement of the movable mass causes a change in an impedance of the resistive-inductive-capacitive sensor.