Resonant tracking of an electromagnetic load
E Marchais, Z You - US Patent 12,035,445, 2024 - Google Patents
A resonant frequency tracker for driving an electromagnetic load with a driving signal may
include a signal generator configured to generate a waveform signal at a driving frequency …
include a signal generator configured to generate a waveform signal at a driving frequency …
In-situ monitoring, calibration, and testing of a haptic actuator
A Khenkin, J Yan, M Janko, M McKnight - US Patent 11,662,821, 2023 - Google Patents
2020-05-12 Assigned to CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD.
reassignment CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. ASSIGNMENT …
reassignment CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. ASSIGNMENT …
Controller for use in a device comprising force sensors
PP Parada, T Birchall, H Sepehr - US Patent 11,726,596, 2023 - Google Patents
A controller for use in a device which comprises at least two force sensors in a given
arrangement, the controller operable, based on input sensor signals derived from the force …
arrangement, the controller operable, based on input sensor signals derived from the force …
Methods and apparatuses for controlling operation of a vibrational output system and/or operation of an input sensor system
T Das, M Beardsworth, MA Kost, G Mcveigh… - US Patent …, 2023 - Google Patents
2021-03-03 Assigned to CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD.
reassignment CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. ASSIGNMENT …
reassignment CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. ASSIGNMENT …
Methods and systems for in-system estimation of actuator parameters
JL Reynaga, MA Janko, EA Marchais… - US Patent …, 2024 - Google Patents
A method for estimating actuator parameters for an actuator, in-situ and in real-time, may
include driving the actuator with a test signal imperceptible to a user of a device comprising …
include driving the actuator with a test signal imperceptible to a user of a device comprising …
Methods and systems for managing mixed mode electromechanical actuator drive
JD Hendrix, EA Marchais, N Joseph, B Tran… - US Patent …, 2023 - Google Patents
In accordance with embodiments of the present disclosure, a method of driving a playback
waveform to an electromagnetic actuator by a transducer driving system may include …
waveform to an electromagnetic actuator by a transducer driving system may include …
Integrated haptic system
RAO Harsha, R Hu, CL Ståhl, J Su, V Konradi… - US Patent …, 2022 - Google Patents
An integrated haptic system may include a digital signal processor and an amplifier
communicatively coupled to the digital signal processor and integrated with the digital signal …
communicatively coupled to the digital signal processor and integrated with the digital signal …
Force sensing with an electromagnetic load
E Marchais, KR Holland, CL Ståhl… - US Patent …, 2023 - Google Patents
(57) ABSTRACT A system for performing force sensing with an electromagnetic load may
include a signal generator configured to generate a signal for driving an electromagnetic …
include a signal generator configured to generate a signal for driving an electromagnetic …
Methods and apparatuses for controlling operation of a vibrational output system and/or operation of an input sensor system
T Das, M Beardsworth, MA Kost, G Mcveigh… - US Patent …, 2024 - Google Patents
Embodiments described herein relate to methods and apparatuses for controlling an
operation of a vibrational output system and/or an operation of an input sensor system …
operation of a vibrational output system and/or an operation of an input sensor system …
Methods and apparatus for outputting a haptic signal to a haptic transducer
AS Doy, N Osmanovic, CL Ståhl - US Patent App. 18/170,277, 2023 - Google Patents
2023-02-16 Assigned to CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD.
reassignment CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. ASSIGNMENT …
reassignment CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. ASSIGNMENT …