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公开(公告)号：US11972057B2
公开(公告)日：2024-04-30
申请号：US18306472
申请日：2023-04-25
发明人： Tejasvi Das , Matthew Beardsworth , Michael A. Kost , Gavin McVeigh , Hamid Sepehr , Carl L. Ståhl
CPC分类号： G06F3/016 , B06B1/0207 , B06B1/045 , G08B6/00 , B06B2201/53
摘要： 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, wherein the controller is for use in a device comprising the vibrational output system and the input sensor system. A controller comprises an input configured to receive an indication of activation or de-activation of an output of the vibrational output system; and an adjustment module configured to adjust the operation of the vibrational output system and/or the operation of the input sensor system based on the indication to reduce an interference expected to be caused by the output of the vibrational output system on the input sensory system.
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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
摘要： 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：US11269509B2
公开(公告)日：2022-03-08
申请号：US17076489
申请日：2020-10-21
发明人： Hamid Sepehr , Pablo Peso Parada , Willem Zwart , Tom Birchall , Michael Allen Kost , Tejasvi Das , Siddharth Maru , Matthew Beardsworth , Bruce E. Duewer
摘要： A force sensing system for determining if a user input has occurred, the system comprising: an input channel, to receive an input from at least one force sensor; an activity detection stage, to monitor an activity level of the input from the at least one force sensor and, responsive to an activity level which may be indicative of a user input being reached, to generate an indication that an activity has occurred at the force sensor; and an event detection stage to receive said indication, and to determine if a user input has occurred based on the received input from the at least one force sensor.
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公开(公告)号：US11255892B2
公开(公告)日：2022-02-22
申请号：US16658755
申请日：2019-10-21
发明人： Tejasvi Das , Siddharth Maru , Xin Zhao , Matthew Beardsworth , Michael A. Kost , John L. Melanson
IPC分类号： G01R29/18
摘要： A system may include a sensor having a variable phase response, a dummy impedance having a known phase response, and a measurement circuit communicatively coupled to the sensor and configured to measure first phase information associated with the sensor, measure second phase information associated with the dummy impedance, and determine a phase response of the measurement circuit based on a comparison of the first phase information to the second phase information.
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15.发明授权公开(公告)号：US10935620B2
公开(公告)日：2021-03-02
申请号：US16455437
申请日：2019-06-27
摘要： A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor with a driving signal at a driving frequency, and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to, during a calibration phase of the measurement circuit, measure phase and amplitude information associated with the resistive-inductive-capacitive sensor and based on the phase and amplitude information, determine at least one of a resonant frequency of the resistive-inductive-capacitive sensor and a transfer function of the resistive-inductive-capacitive sensor.
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公开(公告)号：US10908200B2
公开(公告)日：2021-02-02
申请号：US16267079
申请日：2019-02-04
发明人： Zhong You , Siddharth Maru , Tejasvi Das , Luke Lapointe , Eric J. King , Anthony S. Doy , Srdjan Marjianovic , Drew Kinney , Matthew Beardsworth , Emmanuel Marchais
IPC分类号： G01R27/26 , G01R27/02 , G01D5/20 , G01D5/243 , G01R27/28 , G01R31/26 , G01R31/64 , G01R17/16 , G01R21/07
摘要： 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 measure phase information associated with the resistive-inductive-capacitive sensor and based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor, wherein the displacement of the mechanical member causes a change in an impedance of the resistive-inductive-capacitive sensor.
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公开(公告)号：US11836290B2
公开(公告)日：2023-12-05
申请号：US17157304
申请日：2021-01-25
摘要： A system may include at least one resistive-inductive-capacitive sensor and a control circuit configured to maintain timing parameters for operation of the at least one resistive-inductive-capacitive sensor and vary at least one of the timing parameters to control a spectrum associated with the at least one resistive-inductive-capacitive sensor, wherein the spectrum comprises one of a sensor activity spectrum of the at least one resistive-inductive-capacitive sensor and a current usage spectrum associated with electrical current delivered to the at least one resistive-inductive-capacitive sensor from a source of electrical energy.
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公开(公告)号：US11595037B2
公开(公告)日：2023-02-28
申请号：US17848051
申请日：2022-06-23
IPC分类号： H03K17/97 , H03K17/14 , H03K17/975
摘要： A system may include a sensor configured to output a sensor signal indicative of a distance between the sensor and a mechanical member associated with the sensor, a measurement circuit communicatively coupled to the sensor and configured to determine a physical force interaction with the mechanical member based on the sensor signal, and a compensator configured to monitor the sensor signal and to apply a compensation factor to the sensor signal to compensate for changes to properties of the sensor based on at least one of changes in a distance between the sensor and the mechanical member and changes in a temperature associated with the sensor.
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公开(公告)号：US11507267B2
公开(公告)日：2022-11-22
申请号：US17471529
申请日：2021-09-10
发明人： Hamid Sepehr , Pablo Peso Parada , Willem Zwart , Tom Birchall , Michael Allen Kost , Tejasvi Das , Siddharth Maru , Matthew Beardsworth , Bruce E. Duewer
摘要： A force sensing system for determining if a user input has occurred, the system comprising: an input channel, to receive an input from at least one force sensor; an activity detection stage, to monitor an activity level of the input from the at least one force sensor and, responsive to an activity level which may be indicative of a user input being reached, to generate an indication that an activity has occurred at the force sensor; and an event detection stage to receive said indication, and to determine if a user input has occurred based on the received input from the at least one force sensor.
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公开(公告)号：US11474135B2
公开(公告)日：2022-10-18
申请号：US16600255
申请日：2019-10-11
摘要： 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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