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公开(公告)号：US20240060920A1
公开(公告)日：2024-02-22
申请号：US18470066
申请日：2023-09-19
Inventor： Tejasvi DAS , Siddharth MARU , John L. MELANSON
IPC: G01N27/02
CPC classification number: G01N27/025 , G01N27/028
Abstract: A system may include a resonant sensor configured to sense a physical quantity, a measurement circuit communicatively coupled to the resonant sensor and configured to measure one or more resonance parameters associated with the resonant sensor and indicative of the physical quantity using an incident/quadrature detector having an incident channel and a quadrature channel and perform a calibration of a non-ideality between the incident channel and the quadrature channel of the system, the calibration comprising determining the non-ideality by controlling the sensor signal, an oscillation signal for the incident channel, and an oscillation signal for the quadrature channel; and correcting for the non-ideality.
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公开(公告)号：US20230052112A1
公开(公告)日：2023-02-16
申请号：US17962086
申请日：2022-10-07
Inventor： Hamid SEPEHR , Pablo PESO PARADA , Willem ZWART , Tom BIRCHALL , Michael Allen KOST , Tejasvi DAS , Siddharth MARU , Matthew BEARDSWORTH , Bruce E. DUEWER
IPC: G06F3/0488 , G06F3/041
Abstract: 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：US20210396610A1
公开(公告)日：2021-12-23
申请号：US17080455
申请日：2020-10-26
Inventor： Junsong LI , Rahul GAWDE , Tejasvi DAS , Siddharth MARU , Eric B. SMITH
IPC: G01L1/26
Abstract: A control method for a user interface system may include receiving an input signal, receiving a temperature signal indicative of a temperature, generating a baseline signal based on at least one among the input signal and the temperature signal, calculating an error signal based on a difference of the input signal and the baseline signal, and modifying the baseline signal based on the error signal.
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公开(公告)号：US20210034213A1
公开(公告)日：2021-02-04
申请号：US17076489
申请日：2020-10-21
Inventor： Hamid SEPEHR , Pablo PESO PARADA , Willem ZWART , Tom BIRCHALL , Michael Allen KOST , Tejasvi DAS , Siddharth MARU , Matthew BEARDSWORTH , Bruce E. DUEWER
IPC: G06F3/0488 , G06F3/041
Abstract: 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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5.发明申请公开(公告)号：US20190302890A1
公开(公告)日：2019-10-03
申请号：US16294347
申请日：2019-03-06
Inventor： Srdjan MARIJANOVIC , Drew KINNEY , Luke LAPOINTE , Siddharth MARU , Tejasvi DAS , Anthony S. DOY , Zhong YOU
Abstract: A system may include a tactile actuator for providing tactile feedback and a resonant phase sensing system. The resonant phase sensing system may include a resistive-inductive-capacitive sensor and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and the tactile actuator. The resistive-inductive-capacitive sensor may be configured to measure phase information associated with the resistive-inductive-capacitive sensor, based on the phase information, detect an indication of human interaction with the system proximate to the resistive-inductive-capacitive sensor, and trigger the tactile actuator to generate tactile feedback responsive to detecting the indication of human interaction.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20190302193A1
公开(公告)日：2019-10-03
申请号：US16354695
申请日：2019-03-15
Inventor： Siddharth MARU , Tejasvi DAS , Zhong YOU
Abstract: A system may include a resonant phase sensing system comprising a resistive-inductive-capacitive sensor and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor, and a compensation circuit. The measurement circuit may be configured to use a phase detector to measure phase information associated with the resistive-inductive-capacitive sensor and based on the phase information, determine a displacement of a metal plate relative to the resistive-inductive-capacitive sensor. The compensation circuit may be configured to detect a change in a physical property associated with the resistive-inductive-capacitive sensor other than the displacement and compensate the phase information to correct for the change in the physical property.
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公开(公告)号：US20190140540A1
公开(公告)日：2019-05-09
申请号：US16239092
申请日：2019-01-03
Inventor： Eric J. KING , Siddharth MARU , John L. MELANSON
Abstract: In accordance with embodiments of the present disclosure, an apparatus may include a power converter having a power supply input for receiving an input power supply voltage generated by a power supply, an output for generating an output voltage to a load, and a power inductor coupled between the power supply input and the output may and further include an energy storage element coupled to the power supply input, the power inductor, and the output such that operation of the power inductor is split temporally between delivering energy to the energy storage element and delivering energy to the load, and operation of the energy storage element is split temporally between delivering energy to the load and receiving energy from one or both of the power supply and the load.
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公开(公告)号：US20180152101A1
公开(公告)日：2018-05-31
申请号：US15823140
申请日：2017-11-27
Inventor： Eric J. KING , Siddharth MARU
Abstract: A system may include a charge pump configured to boost an input voltage of the charge pump to an output voltage greater than the input voltage and a controller configured to control an output power of the charge pump to ensure that an input current of the charge pump is maintained below a current limit.
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公开(公告)号：US20170207759A1
公开(公告)日：2017-07-20
申请号：US15270631
申请日：2016-09-20
Inventor： Zhaohui HE , Eric J. KING , Siddharth MARU , John L. MELANSON
CPC classification number: H03F3/217 , H03F1/04 , H03F1/34 , H03F3/185 , H03F3/2171 , H03F3/2173 , H03F3/45475 , H03F2200/351 , H03F2200/432 , H03F2203/45034 , H04R3/12 , H04R2420/03
Abstract: A switching power stage for producing a load voltage may include a first processing path having a first output, a second processing path having a second output, a first plurality of switches comprising at least a first switch coupled between the first output and a first load terminal and a second switch coupled between the first output and the second load terminal, a second plurality of switches comprising at least a third switch coupled between the second output and the first load terminal and a fourth switch coupled between the second output and the second load terminal, and a controller configured to control switches in order to generate the load voltage as a function of an input signal such that one of the first switch and the second switch operates in a linear region of operation and one of the third switch and the fourth switch operates in a saturated region of operation for a predominance of a dynamic rage of the load voltage.
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公开(公告)号：US20170207755A1
公开(公告)日：2017-07-20
申请号：US15168680
申请日：2016-05-31
Inventor： Zhaohui HE , Eric J. KING , Siddharth MARU , John L. MELANSON
CPC classification number: H03F1/32 , H03F1/0211 , H03F1/0227 , H03F1/0244 , H03F3/183 , H03F3/217 , H03F3/2171 , H03F3/2173 , H03F3/45076 , H03F2200/03 , H03F2203/45034 , H04R3/00 , H04R2420/03
Abstract: A switching power stage for producing a load voltage at a load output of the switching power stage, wherein the load output comprises a first load terminal having a first load voltage and a second load terminal having a second load voltage such that the load voltage comprises a difference between the first and the second load voltages, that may include: a power converter comprising a power inductor and a plurality of switches, wherein the power converter is configured to drive a power converter output terminal; a linear amplifier configured to drive a linear amplifier output terminal; and a controller for controlling the plurality of switches and the linear amplifier in order to generate the load voltage as a function of an input signal to the controller such that energy delivered to the load output is supplied predominantly by the power converter.
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