Patents by Inventor Vadim A. Konradi
Vadim A. Konradi 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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Publication number: 20240114288Abstract: A method of controlling a vibrational transducer, the method comprising: tracking a temperature metric of the vibrational transducer; and controlling a drive signal for the vibrational transducer, where the drive signal is limited to a value to protect the vibrational transducer from over excursion, and where said value is a function of the tracked temperature metric.Type: ApplicationFiled: December 2, 2022Publication date: April 4, 2024Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Ning LI, Hamid SEPEHR, Ben LESLIE, Aleksey KHENKIN, Michael KUREK, Marco A. JANKO, Vadim KONRADI, Peter FOSKEY, Aaron TREPTOW
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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
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Publication number: 20230245537Abstract: A method for determining and mitigating over-excursion of an internal mass of an under-damped electromechanical transducer may include transforming an electrical playback signal to an estimated displacement signal, based on the estimated displacement signal, determining an estimated over-excursion of the internal mass responsive to the electrical playback signal, and limiting, based on the estimated over-excursion, an electrical driving signal derived from the electrical playback signal and for driving the electromechanical transducer in order to mitigate over-excursion of the internal mass.Type: ApplicationFiled: January 10, 2023Publication date: August 3, 2023Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Anil LAL, Hamid SEPEHR, Aleksey S. KHENKIN, Filippo ROSSI, Vadim KONRADI, Marco A. JANKO, Chin H. YONG, Colin CAMPBELL
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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
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Publication number: 20230237886Abstract: A method for determining and mitigating over-excursion of an internal mass of an electromechanical transducer may include measuring a sensed signal associated with the electromechanical transducer in response to a driving signal driven to the electromechanical transducer, determining a non-linearity value based on the sensed signal, mapping the non-linearity value to a probability of over-excursion of the internal mass, and applying a gain to a signal path configured to generate the driving signal based on the probability.Type: ApplicationFiled: December 14, 2022Publication date: July 27, 2023Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Marco A. JANKO, Filippo ROSSI, Hamid SEPEHR, Kyle WILKINSON, Emmanuel A. MARCHAIS, Vadim KONRADI, Anil LAL, Aleksey S. KHENKIN, Chin Huang YONG
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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
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Patent number: 11500469Abstract: An integrated haptic system may include a digital signal processor and an amplifier communicatively coupled to the digital signal processor and integrated with the digital signal processor into the integrated haptic system. The digital signal processor may be configured to receive a force sensor signal indicative of a force applied to a force sensor and generate a haptic playback signal responsive to the force. The amplifier may be configured to amplify the haptic playback signal and drive a vibrational actuator communicatively coupled to the amplifier with the haptic playback signal as amplified by the amplifier.Type: GrantFiled: October 6, 2021Date of Patent: November 15, 2022Assignee: Cirrus Logic, Inc.Inventors: Harsha Rao, Rong Hu, Carl Lennart Ståhl, Jie Su, Vadim Konradi, Teemu Ramo, Anthony Stephen Doy
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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
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Publication number: 20220029505Abstract: A system for detecting displacement of a movable member of an electromagnetic transducer having a magnetic coil-driven linear actuator with a static member and a movable mass mechanically coupled to the static member and having a back electromotive force present across terminals of a coil of the electromagnetic transducer is provided. The system may include a resistive-inductive-capacitive sensor comprising the coil, a driver configured to drive the resistive-inductive-capacitive sensor with a driving signal, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure one or more of phase information and amplitude information associated with the resistive-inductive-capacitive sensor and based on the one or more of phase information and amplitude information, determine a displacement of movable mass, wherein the displacement of the movable mass causes a change in an impedance of the resistive-inductive-capacitive sensor.Type: ApplicationFiled: October 8, 2021Publication date: January 27, 2022Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Aleksey KHENKIN, Siddharth MARU, Tejasvi DAS, Emmanuel MARCHAIS, Vadim KONRADI, Viral PARIKH, Jon D. HENDRIX, Marco A. JANKO
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Publication number: 20220026989Abstract: An integrated haptic system may include a digital signal processor and an amplifier communicatively coupled to the digital signal processor and integrated with the digital signal processor into the integrated haptic system. The digital signal processor may be configured to receive a force sensor signal indicative of a force applied to a force sensor and generate a haptic playback signal responsive to the force. The amplifier may be configured to amplify the haptic playback signal and drive a vibrational actuator communicatively coupled to the amplifier with the haptic playback signal as amplified by the amplifier.Type: ApplicationFiled: October 6, 2021Publication date: January 27, 2022Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Harsha RAO, Rong HU, Carl Lennart STÅHL, Jie SU, Vadim KONRADI, Teemu RAMO, Anthony Stephen DOY
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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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Publication number: 20210325265Abstract: The present disclosure relates to compensation circuitry for compensating for a thermal effect in an output signal output by a force sensor. The compensation circuitry comprises 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: ApplicationFiled: March 22, 2021Publication date: October 21, 2021Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Matthew BEARDSWORTH, Vadim KONRADI, Bill DIEHL
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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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Patent number: 10991499Abstract: A method may include generating an electrical drive waveform associated with a target actuator by stretching or compressing a reference drive waveform associated with a reference actuator in a time domain of the reference drive waveform in accordance with a time adjustment factor, wherein the time adjustment factor is determined based on a difference between a resonant frequency of the target actuator and a resonant frequency of the reference actuator. The same or another method may include generating an electrical drive waveform associated with a target actuator by increasing or decreasing an amplitude of a reference drive waveform associated with a reference actuator in accordance with an amplitude adjustment factor, wherein the amplitude adjustment factor is determined based on a difference between a resonant frequency of the target actuator and a resonant frequency of the reference actuator.Type: GrantFiled: August 27, 2018Date of Patent: April 27, 2021Assignee: Cirrus Logic, Inc.Inventors: Vadim Konradi, Carl Lennart Ståhl, Rong Hu
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Publication number: 20200363891Abstract: 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: November 11, 2019Publication date: November 19, 2020Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Gregory C. YANCEY, Michael KOST, Tejasvi DAS, Siddharth MARU, Matthew BEARDSWORTH, Vadim KONRADI
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Publication number: 20200319237Abstract: 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: October 11, 2019Publication date: October 8, 2020Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Siddharth MARU, Vadim KONRADI, Matthew BEARDSWORTH, Tejasvi DAS
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Publication number: 20200272239Abstract: An integrated haptic system may include a digital signal processor and an amplifier communicatively coupled to the digital signal processor and integrated with the digital signal processor into the integrated haptic system. The digital signal processor may be configured to receive a force sensor signal indicative of a force applied to a force sensor and generate a haptic playback signal responsive to the force. The amplifier may be configured to amplify the haptic playback signal and drive a vibrational actuator communicatively coupled to the amplifier with the haptic playback signal as amplified by the amplifier.Type: ApplicationFiled: May 11, 2020Publication date: August 27, 2020Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Harsha RAO, Rong HU, Carl Lennart STÅHL, Jie SU, Vadim KONRADI, Teemu RAMO, Anthony Stephen DOY
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Patent number: 10732714Abstract: An integrated haptic system may include a digital signal processor and an amplifier communicatively coupled to the digital signal processor and integrated with the digital signal processor into the integrated haptic system. The digital signal processor may be configured to receive a force sensor signal indicative of a force applied to a force sensor and generate a haptic playback signal responsive to the force. The amplifier may be configured to amplify the haptic playback signal and drive a vibrational actuator communicatively coupled to the amplifier with the haptic playback signal as amplified by the amplifier.Type: GrantFiled: October 2, 2017Date of Patent: August 4, 2020Assignee: Cirrus Logic, Inc.Inventors: Harsha Rao, Rong Hu, Carl Lennart Ståhl, Jie Su, Vadim Konradi, Teemu Ramo, Anthony Stephen Doy
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Publication number: 20190295755Abstract: A method may include generating an electrical drive waveform associated with a target actuator by stretching or compressing a reference drive waveform associated with a reference actuator in a time domain of the reference drive waveform in accordance with a time adjustment factor, wherein the time adjustment factor is determine based on a difference between a resonant frequency of the target actuator and a resonant frequency of the reference actuator. The same or another method may include generating an electrical drive waveform associated with a target actuator by increasing or decreasing an amplitude of a reference drive waveform associated with a reference actuator in accordance with an amplitude adjustment factor, wherein the amplitude adjustment factor is determined based on a difference between a resonant frequency of the target actuator and a resonant frequency of the reference actuator.Type: ApplicationFiled: August 27, 2018Publication date: September 26, 2019Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Vadim KONRADI, Carl Lennart STÅHL, Rong HU
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Publication number: 20180321748Abstract: An integrated haptic system may include a digital signal processor and an amplifier communicatively coupled to the digital signal processor and integrated with the digital signal processor into the integrated haptic system. The digital signal processor may be configured to receive a force sensor signal indicative of a force applied to a force sensor and generate a haptic playback signal responsive to the force. The amplifier may be configured to amplify the haptic playback signal and drive a vibrational actuator communicatively coupled to the amplifier with the haptic playback signal as amplified by the amplifier.Type: ApplicationFiled: October 2, 2017Publication date: November 8, 2018Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Harsha RAO, Rong HU, Carl Lennart STÅHL, Jie SU, Vadim KONRADI, Teemu RAMO, Anthony Stephen Doy