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Patent Agency Ranking
公开(公告)号：US12284493B2
公开(公告)日：2025-04-22
申请号：US18073853
申请日：2022-12-02
Inventor： Ning Li , Hamid Sepehr , Ben Leslie , Aleksey Khenkin , Michael Kurek , Marco A. Janko , Vadim Konradi , Peter Foskey , Aaron Treptow
Abstract: A method of controlling a vibrational transducer, the method comprising: tracking a temperature metric of the vibrational transducer; and controlling a drive signal for the vibrational transducer, where the drive signal is limited to a value to protect the vibrational transducer from over excursion, and where said value is a function of the tracked temperature metric.
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公开(公告)号：US12254762B2
公开(公告)日：2025-03-18
申请号：US18095305
申请日：2023-01-10
Inventor： Anil Lal , Hamid Sepehr , Aleksey S. Khenkin , Filippo Rossi , Vadim Konradi , Marco A. Janko , Chin H. Yong , Colin Campbell
IPC: G08B6/00
Abstract: A method for determining and mitigating over-excursion of an internal mass of an under-damped electromechanical transducer may include transforming an electrical playback signal to an estimated displacement signal, based on the estimated displacement signal, determining an estimated over-excursion of the internal mass responsive to the electrical playback signal, and limiting, based on the estimated over-excursion, an electrical driving signal derived from the electrical playback signal and for driving the electromechanical transducer in order to mitigate over-excursion of the internal mass.
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公开(公告)号：US11933822B2
公开(公告)日：2024-03-19
申请号：US17574188
申请日：2022-01-12
Inventor： Jorge L. Reynaga , Marco A. Janko , Emmanuel A. Marchais , John L. Melanson
CPC classification number: G01R19/0046 , G01R27/02 , G08B6/00 , H02P29/00
Abstract: 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 the actuator during real-time operation of the device, measuring a voltage and a current associated with the actuator and caused by the test signal, determining one or more parameters of the actuator based on the voltage and the current, determining an actuator type of the actuator based on the one or more parameters, and controlling a playback signal to the actuator based on the actuator type.
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公开(公告)号：US12159528B2
公开(公告)日：2024-12-03
申请号：US18080900
申请日：2022-12-14
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.
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公开(公告)号：US11765499B2
公开(公告)日：2023-09-19
申请号：US17572769
申请日：2022-01-11
Inventor： Jon D. Hendrix , Emmanuel A. Marchais , Nicholas Joseph , Bryant Tran , Marco A. Janko , Noel Preecs
CPC classification number: H04R3/00 , G06F3/016 , H03F1/56 , H03F2200/03 , H03F2200/471
Abstract: 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 operating the transducer driving system in a first mode wherein the electromagnetic actuator is driven with the playback waveform in a closed loop to form a closed-loop voltage drive system that includes a negative impedance, operating the transducer driving system in a second mode wherein the electromechanical actuator is driven with the playback waveform in an open loop, and operating a mode switch for transitioning the transducer driving system to operate between the first mode and the second mode.
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