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公开(公告)号：US20200342082A1
公开(公告)日：2020-10-29
申请号：US16861589
申请日：2020-04-29
Inventor： Vitaliy SAPOZHNYKOV , Thomas Ivan HARVEY , Brenton POTTER , David WATTS
Abstract: 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.
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公开(公告)号：US20180176704A1
公开(公告)日：2018-06-21
申请号：US15855556
申请日：2017-12-27
Inventor： Vitaliy SAPOZHNYKOV
IPC: H04R29/00
CPC classification number: H04R29/004 , G10L21/0208 , H04R3/005 , H04R25/00 , H04R2410/01 , H04R2410/07 , H04R2430/03
Abstract: Processing digitized microphone signal data in order to detect wind noise. A first signal and a second signal are obtained from at least one microphone. The first and second signals reflect a common acoustic input, and are either temporally distinct or spatially distinct, or both. The first signal is processed to determine a first distribution of the samples of the first signal. The second signal is processed to determine a second distribution of the samples of the second signal. A difference between the first distribution and the second distribution is calculated. If the difference exceeds a detection threshold, an indication is output that wind noise is present.
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公开(公告)号：US20210225352A1
公开(公告)日：2021-07-22
申请号：US17143848
申请日：2021-01-07
Inventor： Viral PARIKH , Jon D. HENDRIX , Jeffrey D. ALDERSON , Vitaliy SAPOZHNYKOV , Nafiseh Erfanian SAEEDI , Thomas I. HARVEY , Robert LUKE
IPC: G10K11/178
Abstract: 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.
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公开(公告)号：US20200342246A1
公开(公告)日：2020-10-29
申请号：US16833935
申请日：2020-03-30
Inventor： Thomas Ivan HARVEY , Vitaliy SAPOZHNYKOV , Brenton POTTER
Abstract: 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.
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公开(公告)号：US20190110121A1
公开(公告)日：2019-04-11
申请号：US16131299
申请日：2018-09-14
Inventor： Vitaliy SAPOZHNYKOV , Thomas Ivan HARVEY , Nafiseh ERFANIANSAEEDI , Robert LUKE
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20180367882A1
公开(公告)日：2018-12-20
申请号：US16009524
申请日：2018-06-15
Inventor： David Leigh WATTS , Brenton Robert STEELE , Thomas Ivan HARVEY , Vitaliy SAPOZHNYKOV
CPC classification number: H04R1/1041 , G10L21/0208 , G10L25/78 , G10L2021/02161 , H04R1/1016 , H04R1/1075 , H04R1/1083 , H04R1/46 , H04R3/005 , H04R2420/07 , H04R2460/13
Abstract: 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.
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公开(公告)号：US20200344558A1
公开(公告)日：2020-10-29
申请号：US16834578
申请日：2020-03-30
Inventor： Thomas Ivan HARVEY , Vitaliy SAPOZHNYKOV
Abstract: 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.
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公开(公告)号：US20190342652A1
公开(公告)日：2019-11-07
申请号：US16509711
申请日：2019-07-12
Inventor： David Leigh WATTS , Brenton Robert STEELE , Thomas Ivan HARVEY , Vitaliy SAPOZHNYKOV
IPC: H04R1/10 , H04R1/46 , G10L21/0208 , G10L25/78
Abstract: 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.
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公开(公告)号：US20190244627A1
公开(公告)日：2019-08-08
申请号：US15887019
申请日：2018-02-02
Inventor： Vitaliy SAPOZHNYKOV , Thomas Ivan HARVEY , Robert LUKE
IPC: G10L21/0216 , G10L21/0264 , H04R3/00
CPC classification number: G10L21/0216 , G10L21/0264 , H04R3/00 , H04R2410/07 , H04R2430/03
Abstract: A device for measuring wind noise comprises at least a first microphone and a processor. A first signal and a second signal are obtained from the at least one microphone, the first and second signals reflecting a common acoustic input, and the first and second signals being at least one of temporally distinct and spatially distinct. The first signal is processed to determine a first distribution of the samples of the first signal. The second signal is processed to determine a second distribution of the samples of the second signal. From a difference between the first distribution and the second distribution a scalar non-binary metric reflecting an intensity of wind noise present in the first and second signals is derived, and output.
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公开(公告)号：US20190110120A1
公开(公告)日：2019-04-11
申请号：US16125950
申请日：2018-09-10
Inventor： Vitaliy SAPOZHNYKOV , Thomas Ivan HARVEY , Nafiseh ERFANIANSAEEDI , Robert LUKE
Abstract: 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.
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