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公开(公告)号：US12032744B2
公开(公告)日：2024-07-09
申请号：US18094680
申请日：2023-01-09
Inventor： Harsha Rao , Rong Hu , Carl Lennart Ståhl , Jie Su , Vadim Konradi , Teemu Ramo , Anthony Stephen Doy
CPC classification number: G06F3/016 , G06F3/01 , G06F3/0414 , G06F3/0416 , G06F3/044
Abstract: 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 processor into the integrated haptic system. The digital signal processor may be configured to receive a force sensor signal indicative of a force applied to a force sensor and generate a haptic playback signal responsive to the force. The amplifier may be configured to amplify the haptic playback signal and drive a vibrational actuator communicatively coupled to the amplifier with the haptic playback signal as amplified by the amplifier.
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公开(公告)号：US11093060B2
公开(公告)日：2021-08-17
申请号：US16679773
申请日：2019-11-11
Inventor： Gregory C. Yancey , Michael Kost , Tejasvi Das , Siddharth Maru , Matthew Beardsworth , Vadim Konradi
Abstract: A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure phase information and amplitude associated with the resistive-inductive-capacitive sensor, and a noise detection circuit communicatively coupled to the measurement circuit and configured to determine a presence of external interference in the system based on at least one of the phase information and the amplitude information.
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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：US11714113B2
公开(公告)日：2023-08-01
申请号：US17894429
申请日：2022-08-24
Inventor： Siddharth Maru , Vadim Konradi , Matthew Beardsworth , Tejasvi Das
Abstract: A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to determine a measured change in a resonant frequency of the resistive-inductive-capacitive sensor and based on the measured change, modify the driving frequency.
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公开(公告)号：US10732714B2
公开(公告)日：2020-08-04
申请号：US15722128
申请日：2017-10-02
Inventor： Harsha Rao , Rong Hu , Carl Lennart Ståhl , Jie Su , Vadim Konradi , Teemu Ramo , Anthony Stephen Doy
Abstract: 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 processor into the integrated haptic system. The digital signal processor may be configured to receive a force sensor signal indicative of a force applied to a force sensor and generate a haptic playback signal responsive to the force. The amplifier may be configured to amplify the haptic playback signal and drive a vibrational actuator communicatively coupled to the amplifier with the haptic playback signal as amplified by the amplifier.
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Patent Agency Ranking
公开(公告)号：US11913846B2
公开(公告)日：2024-02-27
申请号：US17208317
申请日：2021-03-22
Inventor： Matthew Beardsworth , Vadim Konradi , Bill Diehl
CPC classification number: G01L1/2281 , G01L1/225 , G01L1/2287
Abstract: Compensation circuitry for compensating for a thermal effect in an output signal output by a force sensor may comprise monitoring circuitry configured to monitor one or more electrical parameters of the resistive force sensor and processing circuitry. The processing circuitry is configured to determine an absolute resistance value for the force sensor based on the one or more monitored electrical parameters and to adjust one or more operational parameters of the force sensor system based at least in part on the determined absolute resistance value.
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公开(公告)号：US10991499B2
公开(公告)日：2021-04-27
申请号：US16113765
申请日：2018-08-27
Inventor： Vadim Konradi , Carl Lennart Ståhl , Rong Hu
Abstract: A method may include generating an electrical drive waveform associated with a target actuator by stretching or compressing a reference drive waveform associated with a reference actuator in a time domain of the reference drive waveform in accordance with a time adjustment factor, wherein the time adjustment factor is determined based on a difference between a resonant frequency of the target actuator and a resonant frequency of the reference actuator. The same or another method may include generating an electrical drive waveform associated with a target actuator by increasing or decreasing an amplitude of a reference drive waveform associated with a reference actuator in accordance with an amplitude adjustment factor, wherein the amplitude adjustment factor is determined based on a difference between a resonant frequency of the target actuator and a resonant frequency of the reference actuator.
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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：US11500469B2
公开(公告)日：2022-11-15
申请号：US17495277
申请日：2021-10-06
Inventor： Harsha Rao , Rong Hu , Carl Lennart Ståhl , Jie Su , Vadim Konradi , Teemu Ramo , Anthony Stephen Doy
Abstract: 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 processor into the integrated haptic system. The digital signal processor may be configured to receive a force sensor signal indicative of a force applied to a force sensor and generate a haptic playback signal responsive to the force. The amplifier may be configured to amplify the haptic playback signal and drive a vibrational actuator communicatively coupled to the amplifier with the haptic playback signal as amplified by the amplifier.
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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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