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公开(公告)号：US20230245537A1
公开(公告)日：2023-08-03
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
CPC classification number: 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：US20230161413A1
公开(公告)日：2023-05-25
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：US20220029505A1
公开(公告)日：2022-01-27
申请号：US17497110
申请日：2021-10-08
Inventor： Aleksey KHENKIN , Siddharth MARU , Tejasvi DAS , Emmanuel MARCHAIS , Vadim KONRADI , Viral PARIKH , Jon D. HENDRIX , Marco A. JANKO
Abstract: A system for detecting displacement of a movable member of an electromagnetic transducer having a magnetic coil-driven linear actuator with a static member and a movable mass mechanically coupled to the static member and having a back electromotive force present across terminals of a coil of the electromagnetic transducer is provided. The system may include a resistive-inductive-capacitive sensor comprising the coil, a driver configured to drive the resistive-inductive-capacitive sensor with a driving signal, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure one or more of phase information and amplitude information associated with the resistive-inductive-capacitive sensor and based on the one or more of phase information and amplitude information, determine a displacement of movable mass, wherein the displacement of the movable mass causes a change in an impedance of the resistive-inductive-capacitive sensor.
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公开(公告)号：US20180321748A1
公开(公告)日：2018-11-08
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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