Patents by Inventor Matthew BEARDSWORTH
Matthew BEARDSWORTH has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11972105Abstract: 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.Type: GrantFiled: October 7, 2022Date of Patent: April 30, 2024Assignee: Cirrus Logic Inc.Inventors: Hamid Sepehr, Pablo Peso Parada, Willem Zwart, Tom Birchall, Michael Allen Kost, Tejasvi Das, Siddharth Maru, Matthew Beardsworth, Bruce E. Duewer
-
Patent number: 11972057Abstract: 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.Type: GrantFiled: April 25, 2023Date of Patent: April 30, 2024Assignee: Cirrus Logic Inc.Inventors: Tejasvi Das, Matthew Beardsworth, Michael A. Kost, Gavin McVeigh, Hamid Sepehr, Carl L. Ståhl
-
Patent number: 11913846Abstract: Compensation circuitry for compensating for a thermal effect in an output signal output by a force sensor may comprise monitoring circuitry configured to monitor one or more electrical parameters of the resistive force sensor and processing circuitry. The processing circuitry is configured to determine an absolute resistance value for the force sensor based on the one or more monitored electrical parameters and to adjust one or more operational parameters of the force sensor system based at least in part on the determined absolute resistance value.Type: GrantFiled: March 22, 2021Date of Patent: February 27, 2024Assignee: Cirrus Logic Inc.Inventors: Matthew Beardsworth, Vadim Konradi, Bill Diehl
-
Publication number: 20240056039Abstract: Switching amplifier circuitry for driving an inductive load, the switching amplifier circuitry comprising modulator circuitry and output stage circuitry, wherein the switching amplifier circuitry is configured to: while the modulator circuitry is outputting a modulated output signal that gives rise to ripple current in the load: adjust a switching frequency of the modulator circuitry over a predetermined range of frequencies; monitor a power of the switching amplifier circuitry as the switching frequency is adjusted over the predetermined range of frequencies; and select, as an operational switching frequency for the modulator circuitry, a frequency within the predetermined range of frequencies at which the monitored power meets a predefined criterion.Type: ApplicationFiled: August 11, 2022Publication date: February 15, 2024Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Matthew BEARDSWORTH, John L. MELANSON
-
Patent number: 11836290Abstract: 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.Type: GrantFiled: January 25, 2021Date of Patent: December 5, 2023Assignee: Cirrus Logic Inc.Inventors: Michael A. Kost, Bruce E. Duewer, Tejasvi Das, Matthew Beardsworth, Anthony S. Doy
-
Publication number: 20230259214Abstract: 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.Type: ApplicationFiled: April 25, 2023Publication date: August 17, 2023Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Tejasvi DAS, Matthew BEARDSWORTH, Michael A. KOST, Gavin MCVEIGH, Hamid SEPEHR, Carl L. STÅHL
-
Patent number: 11714113Abstract: 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.Type: GrantFiled: August 24, 2022Date of Patent: August 1, 2023Assignee: Cirrus Logic, Inc.Inventors: Siddharth Maru, Vadim Konradi, Matthew Beardsworth, Tejasvi Das
-
Patent number: 11669165Abstract: 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.Type: GrantFiled: March 3, 2021Date of Patent: June 6, 2023Assignee: Cirrus Logic, Inc.Inventors: Tejasvi Das, Matthew Beardsworth, Michael A. Kost, Gavin McVeigh, Hamid Sepehr, Carl L. Ståhl
-
Publication number: 20230082721Abstract: A system may include an array of sensor elements, the array of sensor elements each comprising a first type of passive reactive element, a second type of passive reactive element electrically coupled to the array of sensor elements, a driver configured to drive the array of sensor elements and the second type of passive reactive element, and control circuitry configured to control enabling and disabling of individual sensor elements of the array of sensor elements to ensure no more than one of the array of sensor elements is enabled at a time such that when one of the array of sensor elements is enabled, the one of the array of sensor elements and the second type of passive reactive element together operate as a resonant sensor.Type: ApplicationFiled: November 3, 2022Publication date: March 16, 2023Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Jason L. WARDLAW, Michael A. KOST, Anthony S. DOY, Tejasvi DAS, Siddharth MARU, Xin ZHAO, Matthew BEARDSWORTH, Bruce E. DUEWER
-
Patent number: 11595037Abstract: 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.Type: GrantFiled: June 23, 2022Date of Patent: February 28, 2023Assignee: Cirrus Logic, Inc.Inventors: Matthew Beardsworth, Tejasvi Das, Siddharth Maru, Luke Lapointe
-
Publication number: 20230052112Abstract: 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.Type: ApplicationFiled: October 7, 2022Publication date: February 16, 2023Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Hamid SEPEHR, Pablo PESO PARADA, Willem ZWART, Tom BIRCHALL, Michael Allen KOST, Tejasvi DAS, Siddharth MARU, Matthew BEARDSWORTH, Bruce E. DUEWER
-
Patent number: 11536758Abstract: A system may include an array of sensor elements, the array of sensor elements each comprising a first type of passive reactive element, a second type of passive reactive element electrically coupled to the array of sensor elements, a driver configured to drive the array of sensor elements and the second type of passive reactive element, and control circuitry configured to control enabling and disabling of individual sensor elements of the array of sensor elements to ensure no more than one of the array of sensor elements is enabled at a time such that when one of the array of sensor elements is enabled, the one of the array of sensor elements and the second type of passive reactive element together operate as a resonant sensor.Type: GrantFiled: July 19, 2019Date of Patent: December 27, 2022Assignee: Cirrus Logic, Inc.Inventors: Jason L. Wardlaw, Michael A. Kost, Anthony S. Doy, Tejasvi Das, Siddharth Maru, Xin Zhao, Matthew Beardsworth, Bruce E. Duewer
-
Publication number: 20220404409Abstract: 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.Type: ApplicationFiled: August 24, 2022Publication date: December 22, 2022Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Siddharth MARU, Vadim KONRADI, Matthew BEARDSWORTH, Tejasvi DAS
-
Patent number: 11507267Abstract: 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.Type: GrantFiled: September 10, 2021Date of Patent: November 22, 2022Assignee: Cirrus Logic, Inc.Inventors: Hamid Sepehr, Pablo Peso Parada, Willem Zwart, Tom Birchall, Michael Allen Kost, Tejasvi Das, Siddharth Maru, Matthew Beardsworth, Bruce E. Duewer
-
Publication number: 20220337235Abstract: 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.Type: ApplicationFiled: June 23, 2022Publication date: October 20, 2022Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Matthew BEARDSWORTH, Tejasvi DAS, Siddharth MARU, Luke LAPOINTE
-
Patent number: 11474135Abstract: 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.Type: GrantFiled: October 11, 2019Date of Patent: October 18, 2022Assignee: Cirrus Logic, Inc.Inventors: Siddharth Maru, Vadim Konradi, Matthew Beardsworth, Tejasvi Das
-
Patent number: 11418184Abstract: 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.Type: GrantFiled: October 5, 2021Date of Patent: August 16, 2022Assignee: Cirrus Logic, Inc.Inventors: Matthew Beardsworth, Tejasvi Das, Siddharth Maru, Luke Lapointe
-
Patent number: 11402946Abstract: A system may include a plurality of actively-driven inductive sensors and a plurality of control circuits, each control circuit of the plurality of control circuits configured to control operation of a respective set of the actively-driven inductive sensors, each control circuit of the plurality of control circuits communicatively coupled to the other control circuits via a connection configured to distribute synchronization information among the plurality of control circuits. Each of the plurality of control circuits may further be configured to configure a schedule for controlling time-division multiplexed operation of its respective set of actively-driven inductive sensors and control time-division multiplexed operation of its respective set of actively-driven inductive sensors based on the schedule and the synchronization information in order to minimize interference among the plurality of actively-driven inductive sensors.Type: GrantFiled: June 28, 2019Date of Patent: August 2, 2022Assignee: Cirrus Logic, Inc.Inventors: Bruce E. Duewer, Michael A. Kost, Matthew Beardsworth, Tejasvi Das, Siddharth Maru
-
Patent number: 11366550Abstract: A system may include a plurality of actively-driven inductive sensors and a plurality of control circuits, each control circuit of the plurality of control circuits configured to control operation of a respective set of the actively-driven inductive sensors, each control circuit of the plurality of control circuits communicatively coupled to the other control circuits via a connection configured to distribute synchronization information among the plurality of control circuits. Each of the plurality of control circuits may further be configured to configure a schedule for controlling time-division multiplexed operation of its respective set of actively-driven inductive sensors and control time-division multiplexed operation of its respective set of actively-driven inductive sensors based on the schedule and the synchronization information in order to minimize interference among the plurality of actively-driven inductive sensors.Type: GrantFiled: June 28, 2019Date of Patent: June 21, 2022Assignee: Cirrus Logic, Inc.Inventors: Bruce E. Duewer, Michael A. Kost, Matthew Beardsworth, Tejasvi Das, Siddharth Maru
-
Patent number: 11269509Abstract: 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.Type: GrantFiled: October 21, 2020Date of Patent: March 8, 2022Assignee: Cirrus Logic, Inc.Inventors: Hamid Sepehr, Pablo Peso Parada, Willem Zwart, Tom Birchall, Michael Allen Kost, Tejasvi Das, Siddharth Maru, Matthew Beardsworth, Bruce E. Duewer