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公开(公告)号：US10200776B2
公开(公告)日：2019-02-05
申请号：US15984068
申请日：2018-05-18
Applicant: Avnera Corporation
Inventor： Amit Kumar , Shankar Rathoud , Mike Wurtz , Eric Etheridge , Eric Sorensen
IPC: H04R1/10 , G10K11/178 , H04R3/00 , H04R29/00
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：US10182160B2
公开(公告)日：2019-01-15
申请号：US15354909
申请日：2016-11-17
Applicant: AVNERA CORPORATION
Inventor： Eric Sorensen , Thomas Irrgang , Mike Wurtz
Abstract: A portable speakerphone having a housing, a receiving transducer, an electrical cable, a transmitting transducer, and a processor. The receiving transducer is affixed to the housing and is configured to receive a first electrical signal from a mobile device. The electrical cable is coupled to and extends from the housing. The transmitting transducer is affixed to the electrical cable, remote from the housing. Also, the transmitting transducer is configured to transmit a second electrical signal, and the second electrical signal is based in part on the first electrical signal. The processor is configured to suppress acoustic echo by modifying the second electrical signal. The processor is also configured to output the modified second electrical signal to the mobile device. A related method is also disclosed.
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公开(公告)号：US10448140B2
公开(公告)日：2019-10-15
申请号：US16174067
申请日：2018-10-29
Applicant: Avnera Corporation
Inventor： Amit Kumar , Shankar Rathoud , Mike Wurtz , Eric Etheridge , Eric Sorensen
IPC: H04R1/10 , H04R3/00 , H04R29/00 , G10K11/178
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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Patent Agency Ranking
公开(公告)号：US20180270564A1
公开(公告)日：2018-09-20
申请号：US15984068
申请日：2018-05-18
Applicant: Avnera Corporation
Inventor： Amit Kumar , Shankar Rathoud , Mike Wurtz , Eric Etheridge , Eric Sorensen
IPC: H04R1/10 , H04R3/00 , H04R29/00 , G10K11/178
CPC classification number: H04R1/1041 , G10K11/178 , G10K2210/1081 , G10K2210/3026 , G10K2210/3027 , H04R1/1008 , H04R3/00 , H04R29/001 , H04R2460/01
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：US20190174218A1
公开(公告)日：2019-06-06
申请号：US16174067
申请日：2018-10-29
Applicant: Avnera Corporation
Inventor： Amit Kumar , Shankar Rathoud , Mike Wurtz , Eric Etheridge , Eric Sorensen
IPC: H04R1/10 , H04R3/00 , H04R29/00 , G10K11/178
CPC classification number: H04R1/1041 , G10K11/178 , G10K2210/1081 , G10K2210/3026 , G10K2210/3027 , H04R1/1008 , H04R3/00 , H04R29/001 , H04R2460/01
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：US20190174006A1
公开(公告)日：2019-06-06
申请号：US16173801
申请日：2018-10-29
Applicant: Avnera Corporation
Inventor： Eric Sorensen , Thomas Irrgang , Mike Wurtz
Abstract: A portable speakerphone having a housing, a receiving transducer, an electrical cable, a transmitting transducer, and a processor. The receiving transducer is affixed to the housing and is configured to receive a first electrical signal from a mobile device. The electrical cable is coupled to and extends from the housing. The transmitting transducer is affixed to the electrical cable, remote from the housing. Also, the transmitting transducer is configured to transmit a second electrical signal, and the second electrical signal is based in part on the first electrical signal. The processor is configured to suppress acoustic echo by modifying the second electrical signal. The processor is also configured to output the modified second electrical signal to the mobile device. A related method is also disclosed.
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公开(公告)号：US09980034B2
公开(公告)日：2018-05-22
申请号：US15792394
申请日：2017-10-24
Applicant: Avnera Corporation
Inventor： Amit Kumar , Shankar Rathoud , Mike Wurtz , Eric Etheridge , Eric Sorensen
IPC: H04R1/10 , H04R29/00 , G10K11/178
CPC classification number: H04R1/1041 , G10K11/178 , G10K2210/1081 , G10K2210/3026 , G10K2210/3027 , H04R1/1008 , H04R29/001 , H04R2460/01
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：US20180115815A1
公开(公告)日：2018-04-26
申请号：US15792394
申请日：2017-10-24
Applicant: Avnera Corporation
Inventor： Amit Kumar , Shankar Rathoud , Mike Wurtz , Eric Etheridge , Eric Sorensen
CPC classification number: H04R1/1041 , G10K11/178 , G10K2210/1081 , G10K2210/3026 , G10K2210/3027 , H04R1/1008 , H04R29/001 , H04R2460/01
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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