Patents by Inventor Michael Kost
Michael Kost 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).
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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
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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
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Patent number: 11835410Abstract: A method for determining sensor parameters of an actively-driven sensor system may include performing an initialization operation to establish a baseline estimate of the sensor parameters, obtaining as few as three samples of a measured physical quantity versus frequency for the actively-driven sensor system, performing a refinement operation to provide a refined version of the sensor parameters based on the as few as three samples, iteratively repeating the refinement operation until the difference between successive refined versions of the sensor parameters is below a defined threshold, and outputting the refined sensor parameters as updated sensor parameters for the actively-driven sensor system.Type: GrantFiled: October 26, 2020Date of Patent: December 5, 2023Assignee: Cirrus Logic Inc.Inventors: Michael A. Kost, Tejasvi Das, Marc J. Kobayashi, Siddharth Maru, Rahul Gawde
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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
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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
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Patent number: 11625214Abstract: A system may include an audio coder-decoder (codec) having a plurality of digital-to-analog converters (DACs) and a plurality of analog-to-digital converters (ADCs), a serial interface communicatively coupled to the audio codec wherein the serial interface is configured to communicate audio streams to or from the audio codec, wherein the audio codec is configured to be configured as a device on the serial interface, and logic configured to control performance of a communication path within the audio codec based on one or more system conditions associated with the system.Type: GrantFiled: November 27, 2018Date of Patent: April 11, 2023Assignee: Cirrus Logic, Inc.Inventors: Bradley A. Lambert, Michael A. Kost, Bruce E. Duewer
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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
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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
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Patent number: 11451215Abstract: A piece-wise linear (PWL) waveform generator includes a current generator that generates a reference current, an output capacitor across which an output voltage is developed to form a PWL waveform, charging and discharging current sources for charging/discharging the output capacitor based on the reference current, a clock-controlled switch network for controlling the charging/discharging of the output capacitor, and a feedback control loop that senses the output voltage and controls the current generator to vary the reference current based on the output voltage. A first switch controlled by a first clock signal periodically connects/disconnects a current source output to/from a load impedance and a second switch controlled by a second clock signal periodically connects/disconnects a capacitor to/from the current source while disconnected from the load impedance.Type: GrantFiled: June 9, 2021Date of Patent: September 20, 2022Assignee: Cirrus Logic, Inc.Inventors: Miao Song, Xin Zhao, Tejasvi Das, Jason Wardlaw, Michael A. Kost
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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
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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
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Patent number: 11255892Abstract: 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.Type: GrantFiled: October 21, 2019Date of Patent: February 22, 2022Assignee: Cirrus Logic, Inc.Inventors: Tejasvi Das, Siddharth Maru, Xin Zhao, Matthew Beardsworth, Michael A. Kost, John L. Melanson
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Publication number: 20210404901Abstract: A method for determining sensor parameters of an actively-driven sensor system may include performing an initialization operation to establish a baseline estimate of the sensor parameters, obtaining as few as three samples of a measured physical quantity versus frequency for the actively-driven sensor system, performing a refinement operation to provide a refined version of the sensor parameters based on the as few as three samples, iteratively repeating the refinement operation until the difference between successive refined versions of the sensor parameters is below a defined threshold, and outputting the refined sensor parameters as updated sensor parameters for the actively-driven sensor system.Type: ApplicationFiled: October 26, 2020Publication date: December 30, 2021Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Michael A. KOST, Tejasvi DAS, Marc J. KOBAYASHI, Siddharth MARU, Rahul GAWDE
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Publication number: 20210357062Abstract: A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure phase information and amplitude associated with the resistive-inductive-capacitive sensor, and a noise detection circuit communicatively coupled to the measurement circuit and configured to determine a presence of external interference in the system based on at least one of the phase information and the amplitude information.Type: ApplicationFiled: July 8, 2021Publication date: November 18, 2021Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Gregory C. YANCEY, Michael KOST, Tejasvi DAS, Siddharth MARU, Matthew BEARDSWORTH, Vadim KONRADI
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Patent number: 11150733Abstract: Embodiments described herein relate to methods and apparatuses for providing a haptic output signal to a haptic actuator. A controller comprises an input configured to receive a force sensor signal from at least one force sensor; and a haptic output module configured to generate a haptic output signal for output to a haptic actuator; wherein the haptic output module is configured to: responsive to determining that the force sensor signal indicates that a force level applied to the at least one force sensor exceeds a first threshold, trigger output of the haptic output signal; and during output of the haptic output signal, adjust the haptic output signal based on the force sensor signal.Type: GrantFiled: October 23, 2019Date of Patent: October 19, 2021Assignee: Cirrus Logic, Inc.Inventors: Tejasvi Das, Michael A. Kost, Matthew Beardsworth
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Patent number: 11099949Abstract: A method and apparatus for programming a one-time programmable (OTP) memory device is disclosed that allows for resuming and recovering from an interrupted programming cycle (e.g. due to loss of power or user interaction). Upon re-initiation of a programming cycle with the same memory range, a programming controller may detect the memory address where interruption occurred, and resume programming from that address. If the programming interruption resulted in an incorrectly programmed word at the interrupted address, a word repair register may be mapped to the corrupted address to enable correction of that word. The remainder of the memory range may then be programmed normally.Type: GrantFiled: August 1, 2019Date of Patent: August 24, 2021Assignee: Cirrus Logic, Inc.Inventors: Michael A Kost, Bradley A Lambert, John P Tourish, Girish Subramaniam
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Patent number: 11093060Abstract: A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure phase information and amplitude associated with the resistive-inductive-capacitive sensor, and a noise detection circuit communicatively coupled to the measurement circuit and configured to determine a presence of external interference in the system based on at least one of the phase information and the amplitude information.Type: GrantFiled: November 11, 2019Date of Patent: August 17, 2021Assignee: Cirrus Logic, Inc.Inventors: Gregory C. Yancey, Michael Kost, Tejasvi Das, Siddharth Maru, Matthew Beardsworth, Vadim Konradi
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Publication number: 20210200316Abstract: 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: March 3, 2021Publication date: July 1, 2021Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Tejasvi DAS, Matthew BEARDSWORTH, Michael A. KOST, Gavin MCVEIGH, Hamid SEPEHR, Carl L. STÅHL
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Publication number: 20210152174Abstract: A method may include receiving an input signal, generating a baseline signal based on the input signal, generating a corrected input signal by subtracting the baseline signal from the input signal, determining a threshold level change of the input signal when the corrected input signal exceeds a level change threshold, and responsive to the threshold level change, updating the baseline signal to the level change threshold.Type: ApplicationFiled: May 4, 2020Publication date: May 20, 2021Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Gregory C. YANCEY, Rahul GAWDE, Matthew BEARDSWORTH, Michael A. KOST, Junsong LI
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Publication number: 20210140797Abstract: 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: ApplicationFiled: January 25, 2021Publication date: May 13, 2021Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Michael A. KOST, Bruce E. DUEWER, Tejasvi DAS, Matthew BEARDSWORTH, Anthony S. DOY