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公开(公告)号：US11828885B2
公开(公告)日：2023-11-28
申请号：US16219120
申请日：2018-12-13
Inventor： Pablo Peso Parada , Rahim Saeidi
IPC: G01S7/521 , G10K9/12 , G01S7/523 , H04B11/00 , G01N29/34 , G01S15/04 , G01S15/10 , G01S7/539 , G01S15/08 , G01S7/52 , G01S7/527
CPC classification number: G01S7/521 , G01N29/34 , G01S7/523 , G01S7/539 , G01S15/04 , G01S15/104 , G10K9/12 , H04B11/00 , G01S7/52004 , G01S7/527 , G01S15/08
Abstract: Embodiments of the present disclosure provide apparatus, methods and computer programs for ultrasonic proximity-detection. In one embodiment, processing circuitry comprises: a first input for receiving an indication of an interrogating ultrasonic signal; a second input for receiving a detected ultrasonic return signal; an adaptive filter, coupled to the first and second inputs, operative to estimate a transfer function between the interrogating ultrasonic signal and the detected ultrasonic return signal; a feature extract module, coupled to the adaptive filter, operative to calculate statistical moments of one or more of: the estimated transfer function; an estimated ultrasonic return signal, calculated based on the interrogating ultrasonic signal and the estimated transfer function; and an error signal, representing the error between the estimated ultrasonic return signal and the detected ultrasonic return signal; and a classifier module, coupled to the feature extract module, operative to determine the presence of a nearby object based on the statistical moments.
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公开(公告)号：US11733112B2
公开(公告)日：2023-08-22
申请号：US17218322
申请日：2021-03-31
Inventor： Tom Birchall , Hamid Sepehr , Colin Campbell , Jason Kulpe , Chin Yong , Pablo Peso Parada
IPC: G06F3/04886 , G06F3/041 , G01L5/16
CPC classification number: G01L5/16 , G06F3/0414 , G06F3/04886
Abstract: A method of recording measurement data for characterizing a response of a given type of device to an applied force, the given type defining devices of that type as comprising a defined arrangement of a surface and N force sensors of the device concerned, where N≥1, each force sensor configured to output a sensor signal, wherein in the defined arrangement the N force sensors are operatively coupled to a defined input region of the surface so as to sense a force applied to that input region, the method comprising: for a specimen device of the given type, performing at least one measurement procedure, each measurement procedure comprising at least one measurement operation, each measurement operation comprising applying a defined force at a corresponding location on the input region of the device concerned and recording measurement data for that device and location based on the sensor signals of the N force sensors of that device. Also disclosed are a related computer-implemented method of generating a characterization definition for devices of the given type, a computer-implemented method of generating a configuration definition for devices of the given type for a given use case defined by a use-case definition, a method of configuring a candidate device of the given type for the given use case, and a method of assessing or calibrating a candidate device of the given type.
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公开(公告)号：US11692889B2
公开(公告)日：2023-07-04
申请号：US17735582
申请日：2022-05-03
Inventor： Pablo Peso Parada , Hamid Sepehr
CPC classification number: G01L5/0038 , G01K3/005 , G01L1/22 , G01L25/00 , G06F3/03
Abstract: A method of controlling a force sensor system to define at least one button implemented by at least one force sensor, the method comprising: receiving a force sensor input; determining a gradient of the force sensor input; and controlling the force sensor system based on the determined gradient.
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14.发明授权公开(公告)号：US11509292B2
公开(公告)日：2022-11-22
申请号：US16559238
申请日：2019-09-03
Inventor： Emmanuel Marchais , Pablo Peso Parada , Eric Lindemann
Abstract: A method for identifying a mechanical impedance of an electromagnetic load may include generating a waveform signal for driving an electromagnetic load and, during driving of the electromagnetic load by the waveform signal or a signal derived therefrom, receiving a current signal representative of a current associated with the electromagnetic load and a back electromotive force signal representative of a back electromotive force associated with the electromagnetic load. The method may also include implementing an adaptive filter to identify parameters of the mechanical impedance of the electromagnetic load, wherein an input of a coefficient control for adapting coefficients of the adaptive filter is a first signal derived from the back electromotive force signal and a target of the coefficient control for adapting coefficients of the adaptive filter is a second signal derived from the current signal.
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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
Inventor： Hamid Sepehr , Pablo Peso Parada , Willem Zwart , Tom Birchall , Michael Allen Kost , Tejasvi Das , Siddharth Maru , Matthew Beardsworth , Bruce E. Duewer
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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Patent Agency Ranking
公开(公告)号：US10860202B2
公开(公告)日：2020-12-08
申请号：US16422543
申请日：2019-05-24
Inventor： Hamid Sepehr , Pablo Peso Parada , Willem Zwart , Tom Birchall , Michael Allen Kost , Tejasvi Das , Siddharth Maru , Matthew Beardsworth , Bruce E. Duewer
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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17.发明授权公开(公告)号：US11736093B2
公开(公告)日：2023-08-22
申请号：US17961011
申请日：2022-10-06
Inventor： Emmanuel Marchais , Pablo Peso Parada , Eric Lindemann
Abstract: A method for identifying a mechanical impedance of an electromagnetic load may include generating a waveform signal for driving an electromagnetic load and, during driving of the electromagnetic load by the waveform signal or a signal derived therefrom, receiving a current signal representative of a current associated with the electromagnetic load and a back electromotive force signal representative of a back electromotive force associated with the electromagnetic load. The method may also include implementing an adaptive filter to identify parameters of the mechanical impedance of the electromagnetic load, wherein an input of a coefficient control for adapting coefficients of the adaptive filter is a first signal derived from the back electromotive force signal and a target of the coefficient control for adapting coefficients of the adaptive filter is a second signal derived from the current signal.
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公开(公告)号：US11726596B2
公开(公告)日：2023-08-15
申请号：US17161268
申请日：2021-01-28
Inventor： Pablo Peso Parada , Tom Birchall , Hamid Sepehr
IPC: G06F3/041
CPC classification number: G06F3/0414 , G06F3/0418
Abstract: A controller for use in a device which comprises at least two force sensors in a given arrangement, the controller operable, based on input sensor signals derived from the force sensors, to carry out an arrangement-related operation in which an output sensor signal is generated based on at least two said input sensor signals and the arrangement of the force sensors in the device so that the output sensor signal is dependent on said arrangement.
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公开(公告)号：US11662259B2
公开(公告)日：2023-05-30
申请号：US17128922
申请日：2020-12-21
Inventor： Pablo Peso Parada , Tom Birchall , Hamid Sepehr , Filippo Rossi
CPC classification number: G01L1/26 , G01L5/16 , G06F3/0418 , G06F3/041 , G06F2203/04105
Abstract: A baseline unit for use in a sensor system, the sensor system comprising N force sensors which output N sensor signals, respectively, where N≥2, the baseline unit configured to: monitor measures of gradients of the respective sensor signals; and, in dependence upon the measures of the gradients, control a stored baseline setting to control how a baseline signal for at least one of said sensor signals is calculated using a baseline-calculation method, the baseline-calculation method configured by the currently-stored baseline setting.
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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
Inventor： Hamid Sepehr , Pablo Peso Parada , Willem Zwart , Tom Birchall , Michael Allen Kost , Tejasvi Das , Siddharth Maru , Matthew Beardsworth , Bruce E. Duewer
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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