Patents by Inventor Vitaliy Sapozhnykov
Vitaliy Sapozhnykov 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: 11700473Abstract: Embodiments of the disclosure relate to methods, apparatus and systems for authentication of a user. The described embodiments relate to obtaining ear biometric data for a user to be authenticated. The ear biometric data comprises one or more features characteristic of the user's ear canal and an associated fit metric indicative of a positioning of a personal audio device relative to the user's ear canal, the personal audio device comprising a transducer for application of acoustic stimulus to the user's ear to obtain the ear biometric data. The user may be identified as a particular authorised user based on one or more features and the associated fit metric.Type: GrantFiled: April 29, 2020Date of Patent: July 11, 2023Assignee: Cirrus Logic, Inc.Inventors: Vitaliy Sapozhnykov, Thomas Ivan Harvey, Brenton Potter, David Watts
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Patent number: 11659326Abstract: A method, comprising: obtaining one or more accelerometer signals derived from an accelerometer; and determining one or more parameters of wind at the accelerometer based on the one or more accelerometer signals.Type: GrantFiled: December 6, 2021Date of Patent: May 23, 2023Assignee: Cirrus Logic, Inc.Inventors: Vitaliy Sapozhnykov, Thomas I. Harvey, Hock Lim, David Watts
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Patent number: 11483664Abstract: A method for masking an acoustic stimulus, comprising: detecting an event initiated by a user of a personal audio device, the event having an associated audio artefact; in response to detecting the event, applying the acoustic stimulus to the user's ear during a masking period in which the acoustic stimulus is masked in the user's hearing by the audio artefact; extracting, from a response signal of the user's ear to the acoustic stimulus, one or more features for use in a biometric process.Type: GrantFiled: March 30, 2020Date of Patent: October 25, 2022Assignee: Cirrus Logic, Inc.Inventors: Thomas Ivan Harvey, Vitaliy Sapozhnykov
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Patent number: 11451898Abstract: A method and device for detecting whether a headset is on ear. A probe signal is generated for acoustic playback from a speaker. A microphone signal from a microphone is received, the microphone signal comprising at least a portion of the probe signal as received at the microphone. The microphone signal is passed to a state estimator, to produce an estimate of at least one parameter of the portion of the probe signal contained in the microphone signal. The estimate of the at least one parameter is processed to determine whether the headset is on ear.Type: GrantFiled: August 25, 2020Date of Patent: September 20, 2022Assignee: Cirrus Logic, Inc.Inventors: Vitaliy Sapozhnykov, Thomas Ivan Harvey, Nafiseh Erfaniansaeedi, Robert Luke
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Patent number: 11450097Abstract: Described embodiments relate to a method operable in a biometric authentication system. The method comprises initiating generation of an acoustic stimulus for application to a user's ear; and determining a quality measure of a response signal to the acoustic stimulus. Responsive to determining that the quality measure is inadequate for performing a biometric process, the method comprises one or more of: (i) modifying one or more properties of the acoustic stimulus to improve a signal to noise ratio, SNR, of the response signal and (ii) cancelling the effect of noise from outside the ear on the response signal of the user's ear to the acoustic stimulus to improve the SNR of the response signal.Type: GrantFiled: February 23, 2021Date of Patent: September 20, 2022Assignee: Cirrus Logic, Inc.Inventors: Thomas Ivan Harvey, Vitaliy Sapozhnykov, Brenton Potter
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Publication number: 20220095044Abstract: A method, comprising: obtaining one or more accelerometer signals derived from an accelerometer; and determining one or more parameters of wind at the accelerometer based on the one or more accelerometer signals.Type: ApplicationFiled: December 6, 2021Publication date: March 24, 2022Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Vitaliy SAPOZHNYKOV, Thomas I. HARVEY, Hock LIM, David WATTS
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Patent number: 11252504Abstract: A method, comprising: obtaining one or more accelerometer signals derived from an accelerometer; and determining one or more parameters of wind at the accelerometer based on the one or more accelerometer signals.Type: GrantFiled: August 14, 2020Date of Patent: February 15, 2022Assignee: Cirrus Logic, Inc.Inventors: Vitaliy Sapozhnykov, Thomas I. Harvey, Hock Lim, David Watts
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Patent number: 11134330Abstract: Embodiments of the invention determine a speech estimate using a bone conduction sensor or accelerometer, without employing voice activity detection gating of speech estimation. Speech estimation is based either exclusively on the bone conduction signal, or is performed in combination with a microphone signal. The speech estimate is then used to condition an output signal of the microphone. There are multiple use cases for speech processing in audio devices.Type: GrantFiled: July 12, 2019Date of Patent: September 28, 2021Assignee: Cirrus Logic, Inc.Inventors: David Leigh Watts, Brenton Robert Steele, Thomas Ivan Harvey, Vitaliy Sapozhnykov
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Patent number: 11115775Abstract: An acoustic crosstalk canceller is determined for an asymmetric audio playback device, by determining a transfer function of an acoustic stereo playback path having asymmetries defined by speakers of the playback device. The transfer function is inverted to determine an inverse transfer function. The inverse transfer function is regularised by applying frequency dependent regularisation parameters to obtain an acoustic crosstalk canceller. Also, the inverse transfer function could be regularised for symmetric playback paths by applying aggregated frequency dependent regularisation parameters to obtain an acoustic crosstalk canceller without band branching.Type: GrantFiled: February 20, 2020Date of Patent: September 7, 2021Assignee: Cirrus Logic, Inc.Inventor: Vitaliy Sapozhnykov
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Publication number: 20210248403Abstract: Described embodiments relate to a method operable in a biometric authentication system. The method comprises initiating generation of an acoustic stimulus for application to a user's ear; and determining a quality measure of a response signal to the acoustic stimulus. Responsive to determining that the quality measure is inadequate for performing a biometric process, the method comprises one or more of: (i) modifying one or more properties of the acoustic stimulus to improve a signal to noise ratio, SNR, of the response signal and (ii) cancelling the effect of noise from outside the ear on the response signal of the user's ear to the acoustic stimulus to improve the SNR of the response signal.Type: ApplicationFiled: February 23, 2021Publication date: August 12, 2021Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Thomas Ivan HARVEY, Vitaliy SAPOZHNYKOV, Brenton POTTER
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Publication number: 20210225352Abstract: An integrated circuit for implementing at least a portion of a personal audio device may include an output for providing an output signal to a transducer, wherein the output signal includes a pilot signal, a microphone input for receiving a microphone signal from a microphone indicative of an output of the transducer, and a processing circuit. The processing circuit may be configured to implement a pilot signal control to apply an adjustment to the pilot signal as necessary to maintain the pilot signal at a substantially constant magnitude regardless of proximity of the transducer to a pinna and implement a proximity determination block configured to determine proximity of the transducer to the pinna based on the adjustment.Type: ApplicationFiled: January 7, 2021Publication date: July 22, 2021Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Viral PARIKH, Jon D. HENDRIX, Jeffrey D. ALDERSON, Vitaliy SAPOZHNYKOV, Nafiseh Erfanian SAEEDI, Thomas I. HARVEY, Robert LUKE
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Patent number: 10970575Abstract: Described embodiments relate to a method operable in a biometric authentication system. The method comprises initiating generation of an acoustic stimulus for application to a user's ear; and determining a quality measure of a response signal to the acoustic stimulus. Responsive to determining that the quality measure is inadequate for performing a biometric process, the method comprises one or more of: (i) modifying one or more properties of the acoustic stimulus to improve a signal to noise ratio, SNR, of the response signal and (ii) cancelling the effect of noise from outside the ear on the response signal of the user's ear to the acoustic stimulus to improve the SNR of the response signal.Type: GrantFiled: March 30, 2020Date of Patent: April 6, 2021Assignee: Cirrus Logic, Inc.Inventors: Thomas Ivan Harvey, Vitaliy Sapozhnykov, Brenton Potter
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Patent number: 10957328Abstract: This application relates to transfer of microphone data from a microphone (101, 102, 102a, 201) to a processing module, such as voice biometric authentication module (111) in a secure manner, such that the receiving module can trust that the received audio is genuine. An authentication module (203) is configured to receive microphone data (DM) representative of an audio signal received at the microphone (201), and generate from the microphone data, authentication data (DA) for certifying that the microphone data did pass via the authentication module. The first authentication data (DA) comprises information relating to distinguishing characteristics of the audio content of the microphone data and may, for instance be an acoustic fingerprint of the audio content. The authentication data, may be cryptographically signed or encrypted and sent with the microphone audio to allow a receiver to verify that the audio is genuine and the content has not been substantially altered.Type: GrantFiled: July 5, 2018Date of Patent: March 23, 2021Assignee: Cirrus Logic, Inc.Inventors: Michael Page, Thomas Ivan Harvey, Vitaliy Sapozhnykov
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Patent number: 10951972Abstract: A method and device for detecting whether a headset is on ear. Microphone signals from a plurality of microphones are used to derive a plurality of signal feature measures, which are normalized to a common reference scale. The signal feature measures are weighted based upon detected signal conditions in the microphone signals. The normalized and variably weighted signal feature measures are then combined to produce an output indication of whether a headset is on ear.Type: GrantFiled: February 28, 2019Date of Patent: March 16, 2021Assignee: Cirrus Logic, Inc.Inventors: Vitaliy Sapozhnykov, Thomas Ivan Harvey, Nafiseh Erfaniansaeedi, Robert Luke
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Patent number: 10923097Abstract: An integrated circuit for implementing at least a portion of a personal audio device may include an output for providing an output signal to a transducer, wherein the output signal includes a pilot signal, a microphone input for receiving a microphone signal from a microphone indicative of an output of the transducer, and a processing circuit. The processing circuit may be configured to implement a pilot signal control to apply an adjustment to the pilot signal as necessary to maintain the pilot signal at a substantially constant magnitude regardless of proximity of the transducer to a pinna and implement a proximity determination block configured to determine proximity of the transducer to the pinna based on the adjustment.Type: GrantFiled: August 13, 2019Date of Patent: February 16, 2021Assignee: Cirrus Logic, Inc.Inventors: Viral Parikh, Jon D. Hendrix, Jeffrey D. Alderson, Vitaliy Sapozhnykov, Nafiseh Erfanian Saeedi, Thomas I. Harvey, Robert Luke
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Patent number: 10917716Abstract: A method, comprising: obtain one or more accelerometer signals derived from an accelerometer; and determining one or more parameters of wind at the accelerometer based on the one or more accelerometer signals.Type: GrantFiled: June 19, 2019Date of Patent: February 9, 2021Assignee: Cirrus Logic, Inc.Inventors: Vitaliy Sapozhnykov, Thomas I. Harvey, Hock Lim, David Watts
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Publication number: 20200404415Abstract: A method, comprising: obtain one or more accelerometer signals derived from an accelerometer; and determining one or more parameters of wind at the accelerometer based on the one or more accelerometer signals.Type: ApplicationFiled: June 19, 2019Publication date: December 24, 2020Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Vitaliy SAPOZHNYKOV, Thomas I. HARVEY, Hock LIM, David WATTS
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Publication number: 20200404416Abstract: A method, comprising: obtain one or more accelerometer signals derived from an accelerometer; and determining one or more parameters of wind at the accelerometer based on the one or more accelerometer signals.Type: ApplicationFiled: August 14, 2020Publication date: December 24, 2020Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Vitaliy SAPOZHNYKOV, Thomas I. HARVEY, Hock LIM, David WATTS
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Publication number: 20200389717Abstract: A method and device for detecting whether a headset is on ear. A probe signal is generated for acoustic playback from a speaker. A microphone signal from a microphone is received, the microphone signal comprising at least a portion of the probe signal as received at the microphone. The microphone signal is passed to a state estimator, to produce an estimate of at least one parameter of the portion of the probe signal contained in the microphone signal. The estimate of the at least one parameter is processed to determine whether the headset is on ear.Type: ApplicationFiled: August 25, 2020Publication date: December 10, 2020Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Vitaliy SAPOZHNYKOV, Thomas Ivan HARVEY, Nafiseh ERFANIANSAEEDI, Robert LUKE
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Patent number: 10848887Abstract: Detection of a blocked microphone involves receiving microphone signals from a plurality of microphones. A plurality of signal feature measures are derived from the microphone signals. The signal feature measures are normalised. The normalised signal feature measures are variably weighted in response to detected environmental conditions in the microphone signals. The variably weighted normalised signal feature measures are combined to produce an output indication of whether a microphone is blocked.Type: GrantFiled: July 18, 2019Date of Patent: November 24, 2020Assignee: Cirrus Logic, Inc.Inventors: Robert Luke, Vitaliy Sapozhnykov, Thomas Ivan Harvey