-
公开(公告)号：US10714072B1
公开(公告)日：2020-07-14
申请号：US16546130
申请日：2019-08-20
Inventor： K. Joshua Bodon , Jon D. Hendrix , Brian Thornock , Aaron Treptow , Shahram Tadayon
IPC: G10K11/178 , H04R1/10
Abstract: A method may include receiving a user trigger signal indicating a user desire to update characteristics of an adaptive filter, receiving an error microphone signal indicative of the output of the transducer and the ambient audio sounds at the transducer, wherein the transducer reproduces both a source audio signal for playback to a listener and an anti-noise signal for countering the effects of ambient audio sounds in an acoustic output of the transducer, implementing the adaptive filter having a response that generates the anti-noise signal to reduce the presence of the ambient audio sounds in the error microphone signal, determining an acoustic coupling of the transducer to an error microphone for producing the error microphone signal, and responsive to a change in the acoustic coupling, prompting a user to assert the user trigger signal to indicate user desire to update characteristics of the adaptive filter.
-
公开(公告)号：US09812114B2
公开(公告)日：2017-11-07
申请号：US15058866
申请日：2016-03-02
Inventor： Jeffrey D. Alderson , Jon D. Hendrix , Sang-Ik Terry Cho , Chin Huang Yong , John L. Melanson
IPC: A61F11/06 , G10K11/16 , G10K11/178
CPC classification number: G10K11/178 , G10K11/17885 , G10K2210/108 , G10K2210/1081 , G10K2210/3014 , G10K2210/3016 , G10K2210/3028 , G10K2210/3056
Abstract: A method may include adaptively generating an anti-noise signal for countering the effects of ambient audio sounds at an acoustic output of the transducer by adapting a response of an adaptive filter that filters a reference microphone signal in conformity with an error microphone signal and the reference microphone signal to minimize the ambient audio sounds in the error microphone, generating a scaled anti-noise signal by applying a scaling factor to the anti-noise signal, further adjusting the response of the adaptive filter independent of a source audio signal by altering an input to the coefficient control block of the adaptive filter to compensate for the scaling factor, and combining the scaled anti-noise signal with the source audio signal to generate an audio signal provided to the transducer.
-
公开(公告)号：US20170084263A1
公开(公告)日：2017-03-23
申请号：US15053792
申请日：2016-02-25
Inventor： Jon D. Hendrix , Nitin Kwatra , Jeffrey D. Alderson
IPC: G10K11/178
CPC classification number: G10K11/178 , G10K11/1787 , G10K11/17885 , G10K2210/108 , G10K2210/1081 , G10K2210/3026 , G10K2210/3027 , G10K2210/3028 , H04M1/6025 , H04M1/6058 , H04R1/1083 , H04R2460/01
Abstract: An integrated circuit may include an output for providing a signal to a transducer including both source audio for playback to a listener and an anti-noise signal for countering the effects of ambient audio sounds in an acoustic output of the transducer, a microphone input for receiving a microphone signal indicative of ambient sounds at the transducer, a link control input for receiving link control information of a communications link coupling the integrated circuit to the transducer and/or a microphone for generating the microphone signal, wherein the link control information includes a link quality metric of the communications link, and a processing circuit comprising a filter having a response that generates the anti-noise signal in conformity with the microphone signal to minimize the ambient sounds at the acoustic output of the transducer, wherein the processing circuit modifies generation of the anti-noise signal responsive to the link quality metric.
-
公开(公告)号：US10923097B2
公开(公告)日：2021-02-16
申请号：US16539092
申请日：2019-08-13
Inventor： Viral Parikh , Jon D. Hendrix , Jeffrey D. Alderson , Vitaliy Sapozhnykov , Nafiseh Erfanian Saeedi , Thomas I. Harvey , Robert Luke
IPC: G10K11/178 , H04M1/02
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.
-
公开(公告)号：US10290296B2
公开(公告)日：2019-05-14
申请号：US15337223
申请日：2016-10-28
Inventor： Jon D. Hendrix , Jeffrey D. Alderson , Chin Huang Yong , Ryan A. Hellman
IPC: H04R1/10 , G10K11/178 , H04R3/00
Abstract: An integrated circuit may include an output for providing an output signal to a transducer including both a source audio signal for playback to a listener and an anti-noise signal for countering the effect of ambient audio sounds in an acoustic output of the transducer, an ambient microphone input for receiving an ambient microphone signal indicative of the ambient audio sounds; an error microphone input for receiving an error microphone signal indicative of the output of the transducer and the ambient audio sounds at the transducer; and a processing circuit that implements a feedback path having a feedback response that generates a feedback anti-noise signal from the error microphone signal, wherein a signal gain of the feedback path is a function of the ambient microphone signal, and wherein the anti-noise signal comprises at least the feedback anti-noise signal.
-
Patent Agency Ranking
6.发明授权公开(公告)号：US11908310B2
公开(公告)日：2024-02-20
申请号：US17549399
申请日：2021-12-13
Inventor： Dana J. Taipale , Jon D. Hendrix , Emmanuel A. Marchais
IPC: G08B6/00
CPC classification number: G08B6/00
Abstract: A method may include receiving, by a transducer driving system, a first signal for driving an amplifier that drives an electromagnetic load and receiving, by the transducer driving system, a second signal driven by the amplifier in order to control a feedback loop of the transducer driving system. The method may also include detecting unexpected spectral content in the second signal, declaring an indicator event based on the detected unexpected spectral content, determining whether the indicator event occurs in an undesired pattern, and in response to the indicator event occurring in the undesired pattern, modifying a behavior of the transducer driving system.
-
公开(公告)号：US20170256248A1
公开(公告)日：2017-09-07
申请号：US15058866
申请日：2016-03-02
Inventor： Jeffrey D. Alderson , Jon D. Hendrix , Sang-Ik Terry Cho , Chin Huang Yong , John L. Melanson
IPC: G10K11/178
CPC classification number: G10K11/178 , G10K11/17885 , G10K2210/108 , G10K2210/1081 , G10K2210/3014 , G10K2210/3016 , G10K2210/3028 , G10K2210/3056
Abstract: A method may include adaptively generating an anti-noise signal for countering the effects of ambient audio sounds at an acoustic output of the transducer by adapting a response of an adaptive filter that filters a reference microphone signal in conformity with an error microphone signal and the reference microphone signal to minimize the ambient audio sounds in the error microphone, generating a scaled anti-noise signal by applying a scaling factor to the anti-noise signal, further adjusting the response of the adaptive filter independent of a source audio signal by altering an input to the coefficient control block of the adaptive filter to compensate for the scaling factor, and combining the scaled anti-noise signal with the source audio signal to generate an audio signal provided to the transducer.
-
公开(公告)号：US11765499B2
公开(公告)日：2023-09-19
申请号：US17572769
申请日：2022-01-11
Inventor： Jon D. Hendrix , Emmanuel A. Marchais , Nicholas Joseph , Bryant Tran , Marco A. Janko , Noel Preecs
CPC classification number: H04R3/00 , G06F3/016 , H03F1/56 , H03F2200/03 , H03F2200/471
Abstract: In accordance with embodiments of the present disclosure, a method of driving a playback waveform to an electromagnetic actuator by a transducer driving system may include operating the transducer driving system in a first mode wherein the electromagnetic actuator is driven with the playback waveform in a closed loop to form a closed-loop voltage drive system that includes a negative impedance, operating the transducer driving system in a second mode wherein the electromechanical actuator is driven with the playback waveform in an open loop, and operating a mode switch for transitioning the transducer driving system to operate between the first mode and the second mode.
-
公开(公告)号：US11017759B2
公开(公告)日：2021-05-25
申请号：US16894207
申请日：2020-06-05
Inventor： K. Joshua Bodon , Jon D. Hendrix , Brian Thornock , Aaron Treptow , Shahram Tadayon
IPC: G10K11/178 , H04R1/10
Abstract: A method may include receiving a user trigger signal indicating a user desire to update characteristics of an adaptive filter, receiving an error microphone signal indicative of the output of the transducer and the ambient audio sounds at the transducer, wherein the transducer reproduces both a source audio signal for playback to a listener and an anti-noise signal for countering the effects of ambient audio sounds in an acoustic output of the transducer, implementing the adaptive filter having a response that generates the anti-noise signal to reduce the presence of the ambient audio sounds in the error microphone signal, determining an acoustic coupling of the transducer to an error microphone for producing the error microphone signal, and responsive to a change in the acoustic coupling, prompting a user to assert the user trigger signal to indicate user desire to update characteristics of the adaptive filter.
-
10.发明申请公开(公告)号：US20170270906A1
公开(公告)日：2017-09-21
申请号：US15070457
申请日：2016-03-15
Inventor： Nitin Kwatra , Jon D. Hendrix , John L. Melanson
IPC: G10K11/178
CPC classification number: G10K11/178 , G10K11/1786 , G10K11/17879 , G10K11/17885 , G10K2210/1081 , G10K2210/3023 , G10K2210/3027 , G10K2210/3028 , G10K2210/3046 , H04R3/12 , H04R2205/022
Abstract: In accordance with embodiments of the present disclosure, a processing circuit may implement an adaptive filter, a first signal injection portion which injects a first additional signal into a first frequency range content source audio signal, and a second signal injection portion which injects a second additional signal into a second frequency range content source audio signal, wherein the first additional signal and the second additional signal are substantially different. The adaptive filter may have a response that generates the antinoise signal from the reference microphone signal to reduce the presence of the ambient audio sounds at the acoustic output, wherein the response of the adaptive filter is shaped in conformity with the reference microphone signal and the error microphone signal by adapting the response of the adaptive filter to minimize the ambient audio sounds in the error microphone signal, wherein the antinoise signal is combined with at least the first frequency range content source audio signal.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.02 seconds)
