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公开(公告)号：US20220312104A1
公开(公告)日：2022-09-29
申请号：US17806295
申请日：2022-06-10
Applicant: AVNERA CORPORATION
Inventor： Michael Jon Wurtz , Amit Kumar , Jiajin An
Abstract: A method of operating a headphone configured to be removed from and placed in close proximity to a user's ear can include generating an input signal by an input signal generating device. The method can also include determining whether an insertion event has occurred based on the generated input signal and causing the headphone to operate in 5 a low power mode responsive to an absence of an insertion event determination after a first period of time. The method can also include causing the headphone to operate in an ultra-low power mode responsive to the absence of an insertion event determination after a second period of time that occurs after the first period of time, the ultra-low power mode having a lower power consumption than the low power mode.
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公开(公告)号：US11006201B2
公开(公告)日：2021-05-11
申请号：US16588108
申请日：2019-09-30
Applicant: Avnera Corporation
Inventor： Amit Kumar , Shankar Rathoud , Michael Jon Wurtz , Eric Etheridge , Eric Sorensen
IPC: H04R1/10 , H04R29/00 , G10K11/178 , H04R3/00
Abstract: Disclosed is a signal processor for headphone off-ear detection. The signal processor includes an audio output to transmit an audio signal toward a headphone speaker in a headphone cup. The signal processor also includes a feedback (FB) microphone input to receive a FB signal from a FB microphone in the headphone cup. The signal processor also includes an off-ear detection (OED) signal processor to determine an audio frequency response of the FB signal over an OED frame as a received frequency response. The OED processor also determines an audio frequency response of the audio signal times an off-ear transfer function between the headphone speaker and the FB microphone as an ideal off-ear response. A difference metric si generated comparing the received frequency response to the ideal off-ear frequency response. The difference metric is employed to detect when the headphone cup is disengaged from an ear.
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公开(公告)号：US10896680B2
公开(公告)日：2021-01-19
申请号：US16399671
申请日：2019-04-30
Applicant: AVNERA CORPORATION
Inventor： Christopher James O'Connor
Abstract: A system for operating a headphone can include a primary processor to control the headphone and operate in a low-power state, a cup portion having a microphone to receive an input, a listening sub-system to convert the input into an output signal, and a neural net processor to receive the output signal from the listening sub-system and determine whether to generate a wake signal based on the received output signal.
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公开(公告)号：US10581390B2
公开(公告)日：2020-03-03
申请号：US16159281
申请日：2018-10-12
Applicant: Avnera Corporation
Inventor： Ali Hadiashar , Wai Laing Lee
Abstract: A new compensation system for an audio input reduces noise by matching feedback ratios in the positive and negative paths. A variable resistance network allows for fine control of resistance trimming in one of the signal paths, which allows for compensation between tolerance of resistors that are external to an integrated circuit and those that are internal to the integrated circuit.
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公开(公告)号：US10560114B2
公开(公告)日：2020-02-11
申请号：US16174088
申请日：2018-10-29
Applicant: Avnera Corporation
Inventor： Jianping Wen , Ali Hadiashar , Eric King , David Entrikin , Wai Lang Lee
IPC: H03M3/00
Abstract: Embodiments of the invention include an oversampling Analog to Digital Converter that uses uneven non-overlapping clock phases to reduce switched capacitor circuit power consumption. A return-to-zero sub phase of one of the clock phases may also be used for feedback reference capacitors. A delay lock loop may be combined with the non-overlapping clock phase generator to control accurate timing.
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Patent Agency Ranking
公开(公告)号：US10516960B2
公开(公告)日：2019-12-24
申请号：US16013073
申请日：2018-06-20
Applicant: Avnera Corporation
Inventor： Colin Doolittle , Amit Kumar , David Wurtz , Michael Wurtz , Manpreet Khaira , Meenakshi Barjatia
Abstract: An audio speaker system for a home theater including a number of microphones, a number of speakers, each speaker located at a different location in a room, and a processor electrically connected to the plurality of microphones and wirelessly connected to the plurality of speakers. The processor is configured to generate an audio signal to send to each speaker of the plurality of speakers, output audio from each speaker of the plurality of speakers based on the audio signal, receive the audio at each microphone from each speaker of the plurality of speakers, determine a location of each speaker relative to the plurality of microphones based on the received audio at each microphone, and assign an audio channel to each speaker based on the determined location.
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公开(公告)号：US20190335268A1
公开(公告)日：2019-10-31
申请号：US16399671
申请日：2019-04-30
Applicant: AVNERA CORPORATION
Inventor： Christopher James O'Connor
Abstract: A system for operating a headphone can include a primary processor to control the headphone and operate in a low-power state, a cup portion having a microphone to receive an input, a listening sub-system to convert the input into an output signal, and a neural net processor to receive the output signal from the listening sub-system and determine whether to generate a wake signal based on the received output signal.
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公开(公告)号：US20190304430A1
公开(公告)日：2019-10-03
申请号：US16446064
申请日：2019-06-19
Applicant: Avnera Corporation
Inventor： James Scanlan
IPC: G10K11/178 , H04R1/40 , H04R1/10 , H04R3/00 , H04R29/00
Abstract: The disclosure includes a headset comprising one or more earphones including one or more sensing components. The headset also includes one or more voice microphones to record a voice signal for voice transmission. The headset also includes a signal processor coupled to the earphones and the voice microphones. The signal processor is configured to employ the sensing components to determine a wearing position of the headset. The signal processor then selects a signal model for noise cancellation. The signal model is selected from a plurality of signal models based on the determined wearing position. The signal processor also applies the selected signal model to mitigate noise from the voice signal prior to voice transmission.
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公开(公告)号：US10354639B2
公开(公告)日：2019-07-16
申请号：US15792378
申请日：2017-10-24
Applicant: Avnera Corporation
Inventor： James Scanlan
Abstract: The disclosure includes a headset comprising one or more earphones including one or more sensing components. The headset also includes one or more voice microphones to record a voice signal for voice transmission. The headset also includes a signal processor coupled to the earphones and the voice microphones. The signal processor is configured to employ the sensing components to determine a wearing position of the headset. The signal processor then selects a signal model for noise cancellation. The signal model is selected from a plurality of signal models based on the determined wearing position. The signal processor also applies the selected signal model to mitigate noise from the voice signal prior to voice transmission.
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公开(公告)号：US20190182578A1
公开(公告)日：2019-06-13
申请号：US16274075
申请日：2019-02-12
Applicant: Avnera Corporation
Inventor： Amit Kumar , Eric Sorensen , Shankar Rathoud
IPC: H04R1/10 , G10K11/178
Abstract: A headphone having a speaker, a feedforward microphone, a feedback microphone, and an OED processor. The speaker is configured to transmit an audio playback signal based on a headphone audio signal. The feedforward microphone is configured to sense an ambient noise signal and transmit a feedforward microphone signal based at least in part on the ambient noise signal. The feedback microphone is configured to sense a total audio signal and transmit a feedback microphone signal based at least in part on the total audio signal, in which the total audio signal is the sum of the audio playback signal and at least a portion of the ambient noise level. The OED processor is configured to determine whether the headphone is off ear or on ear, based at least in part on the headphone audio signal, the feedforward microphone signal, and the feedback microphone signal.
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