公开(公告)号：US12159528B2

公开(公告)日：2024-12-03

申请号：US18080900

申请日：2022-12-14

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Marco A. Janko ,  Filippo Rossi ,  Hamid Sepehr ,  Kyle Wilkinson ,  Emmanuel A. Marchais ,  Vadim Konradi ,  Anil Lal ,  Aleksey S. Khenkin ,  Chin Huang Yong

IPC: G08B6/00

Abstract: A method for determining and mitigating over-excursion of an internal mass of an electromechanical transducer may include measuring a sensed signal associated with the electromechanical transducer in response to a driving signal driven to the electromechanical transducer, determining a non-linearity value based on the sensed signal, mapping the non-linearity value to a probability of over-excursion of the internal mass, and applying a gain to a signal path configured to generate the driving signal based on the probability.

公开(公告)号：US11662259B2

公开(公告)日：2023-05-30

申请号：US17128922

申请日：2020-12-21

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Pablo Peso Parada ,  Tom Birchall ,  Hamid Sepehr ,  Filippo Rossi

IPC: G01L1/26 ,  G01L5/16 ,  G06F3/041

CPC classification number: G01L1/26 ,  G01L5/16 ,  G06F3/0418 ,  G06F3/041 ,  G06F2203/04105

Abstract: A baseline unit for use in a sensor system, the sensor system comprising N force sensors which output N sensor signals, respectively, where N≥2, the baseline unit configured to: monitor measures of gradients of the respective sensor signals; and, in dependence upon the measures of the gradients, control a stored baseline setting to control how a baseline signal for at least one of said sensor signals is calculated using a baseline-calculation method, the baseline-calculation method configured by the currently-stored baseline setting.

公开(公告)号：US20240238842A1

公开(公告)日：2024-07-18

申请号：US18098396

申请日：2023-01-18

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Marco Janko ,  Jorge Reynaga ,  Chin Yong ,  Eric Lindemann ,  Emmanuel Marchais ,  Hamid Sepehr ,  Vadim Konradi ,  Michael Kurek ,  Filippo Rossi ,  Anil Lal ,  Aleksey Khenkin

IPC: B06B1/02 ,  H04R29/00

CPC classification number: B06B1/0276 ,  H04R29/00 ,  B06B2201/40

Abstract: A method includes applying a high frequency signal to an electromechanical actuator and measuring a first response of the electromechanical actuator to the high frequency signal, estimating electrical parameters of the electromechanical actuator based on the first response, applying a low frequency broadband signal to the electromechanical actuator and measuring a second response of the electromechanical actuator to the low frequency broadband signal, and estimating mechanical parameters of the electromechanical actuator based on the second response and the estimated electrical parameters.