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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：US11069206B2
公开(公告)日：2021-07-20
申请号：US16280256
申请日：2019-02-20
Inventor： Harsha Rao , Kyle Wilkinson , Rong Hu
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.
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Patent Agency Ranking
公开(公告)号：US11037414B2
公开(公告)日：2021-06-15
申请号：US16280256
申请日：2019-02-20
Inventor： Harsha Rao , Kyle Wilkinson , Rong Hu
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.
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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：US11139767B2
公开(公告)日：2021-10-05
申请号：US16207340
申请日：2018-12-03
Inventor： Marco Janko , Harsha Rao , Carl Ståhl , Rong Hu
IPC: B66C1/10 , H02P25/034 , H02P21/00 , H02P21/13 , H02P21/22 , H03H17/02 , G08B6/00 , H02P21/18 , G06F3/01 , B06B1/02
Abstract: According to embodiments described herein, there are provided methods and apparatus for providing a driving signal to a transducer, wherein the driving signal is output by an amplifier. A method comprises receiving an indication of a voltage and a current of the driving signal; based on an electrical model of the transducer and the voltage and the current of the driving signal, estimating an estimated electrical response of the transducer representative of movement of a mass in the transducer; comparing the estimated electrical response to a desired electrical response; and controlling the driving signal based on the comparison.
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公开(公告)号：US10782785B2
公开(公告)日：2020-09-22
申请号：US16257340
申请日：2019-01-25
Inventor： Rong Hu , Jie Su , Harsha Rao
Abstract: A method for quantifying fidelity of a haptic signal may include receiving a response signal indicative of a vibrational response of a vibrational transducer to a haptic playback waveform driven to the vibrational transducer, perceptually filtering the response signal to obtain human haptic-perceptible components of the response signal, and quantifying fidelity of the haptic playback waveform based on at least one quantitative characteristic of the human haptic-perceptible components of the response signal.
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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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