公开(公告)号：US20230237886A1

公开(公告)日：2023-07-27

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

CPC classification number: 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：US20190340895A1

公开(公告)日：2019-11-07

申请号：US16280256

申请日：2019-02-20

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Harsha RAO ,  Kyle WILKINSON ,  Rong HU

IPC: G08B6/00

Abstract: Embodiments described herein provide methods and apparatus for outputting a haptic signal to a haptic transducer. A method comprises storing a representation of a part of the haptic signal comprising a first information point indicating a first amplitude and at least one first frequency of the part of the haptic signal at a first time, wherein the representation is associated with a user experience; responsive to receiving an indication of occurrence of the user experience, determining the haptic signal based on the first information point such that the part of the haptic signal has the first amplitude and the at least one first frequency at the first time. The method may further comprise outputting the haptic signal to the haptic transducer.