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11.发明授权公开(公告)号：US11070676B2
公开(公告)日：2021-07-20
申请号：US16829636
申请日：2020-03-25
Applicant: Apple Inc.
Inventor： Daniel C. Klingler , David L. Biderman , Nicholas M. Fraioli , Christopher M. Garrido , Adam E. Kriegel , Shuang Liu , Richard M. Powell
Abstract: Techniques to use an embedded passcode within an audio ringtone to establish a secure connection for arbitrary phone relay are described. The use of an embedded passcode enables encrypted ad-hoc connections for the relay of audio of an incoming telephone call to a secondary device, such as a virtual assistant enabled smart speaker device.
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公开(公告)号：US10244314B2
公开(公告)日：2019-03-26
申请号：US15636967
申请日：2017-06-29
Applicant: Apple Inc.
Inventor： Adam E. Kriegel , Afrooz Family , Sean A. Ramprashad , Sylvain J. Choisel
Abstract: An audio system includes one or more loudspeaker cabinets, each having loudspeakers. The system outputs an omnidirectional sound pattern to determine the acoustic environment. Sensing logic determines an acoustic environment of the loudspeaker cabinets. The sensing logic may include an echo canceller. A playback mode processor adjusts an audio program according to a playback mode determined from the acoustic environment of the audio system. The system may produce a directional pattern superimposed on an omnidirectional pattern, if the acoustic environment is in free space. The system may aim ambient content toward a wall and direct content away from the wall, if the acoustic environment is not in free space. The sensing logic automatically determines the acoustic environment upon initial power up and when position changes of loudspeaker cabinets are detected. Accelerometers may detect position changes of the loudspeaker cabinets.
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公开(公告)号：US20180352331A1
公开(公告)日：2018-12-06
申请号：US15613049
申请日：2017-06-02
Applicant: Apple Inc.
Inventor： Adam E. Kriegel , Afrooz Family , Sean A. Ramprashad , Sylvain J. Choisel
IPC: H04R3/04 , G10L21/0208 , H04R3/12 , H04R1/40 , H04R29/00
CPC classification number: H04R3/04 , G10L21/0208 , G10L2021/02082 , H04R1/403 , H04R3/12 , H04R27/00 , H04R29/002 , H04R29/007 , H04R2227/005 , H04S7/305 , H04S7/307
Abstract: An audio system includes one or more loudspeaker cabinets, each having loudspeakers. Sensing logic determines an acoustic environment of the loudspeaker cabinets. The sensing logic may include an echo canceller. A low frequency filter corrects an audio program based on the acoustic environment of the loudspeaker cabinets. The system outputs an omnidirectional sound pattern, which may be low frequency sound, to determine the acoustic environment. The system may produce a directional pattern superimposed on an omnidirectional pattern, if the acoustic environment is in free space. The system may aim ambient content toward a wall and direct content away from the wall, if the acoustic environment is not in free space. The sensing logic automatically determines the acoustic environment upon initial power up and when position changes of loudspeaker cabinets are detected. Accelerometers may detect position changes of the loudspeaker cabinets.
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公开(公告)号：US20180090150A1
公开(公告)日：2018-03-29
申请号：US15275312
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Juha O. Merimaa , Bruce C. Po , Adam E. Kriegel
IPC: G10L19/008 , H04S7/00
CPC classification number: G10L19/008 , H03G5/00 , H03G5/165 , H04S3/002 , H04S3/008 , H04S5/00 , H04S7/30 , H04S2400/01
Abstract: Ambience extraction from a multichannel input signal is provided. The multichannel input signal is converted into a time-frequency representation. A cross-correlation coefficient is computed for each time and frequency in the time-frequency representation of the multichannel input signal. An autocorrelation is computed for each time and frequency in the time-frequency representation of the multichannel input signal. Using the cross-correlation coefficient and the autocorrelation, ambience extraction coefficients including crosstalk and same-side coefficients are computed as a function of a tuning parameter, the crosstalk coefficients being proportional to the tuning parameter and the tuning parameter being between a value of 0 and a value of 1. The ambience extraction coefficients are applied to extract a left ambience component and a right ambience component.
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公开(公告)号：US11025406B2
公开(公告)日：2021-06-01
申请号：US16584012
申请日：2019-09-26
Applicant: Apple Inc.
Inventor： Michael F. Jean , Adam E. Kriegel , Brett D. George , Daniel C. Klingler , Girault W. Jones , Felipe Ferreri Tonello
Abstract: A system and method to mitigate the temporary loss of the input sampling clocks when receiving audio data over the ARC or eARC interface of HDMI are provided. A media device may substitute an externally generated clock derived from a local crystal oscillator of the media device for the missing input sampling clock. The external clock may be synchronized to the frequency of the input sampling clock. The media device may synchronize the external clock to the audio data when there is a loss of the input sampling clock. When the input sampling clock of the audio data reappears, the media device may switch back from the external clock to the input sampling clock. When transitioning between the input sampling clock and the external clock, the media device may insert zero padding into the audio data samples to mute any potential glitch in the sound from an audio playback device.
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Patent Agency Ranking
公开(公告)号：US20190222931A1
公开(公告)日：2019-07-18
申请号：US16362048
申请日：2019-03-22
Applicant: Apple Inc.
Inventor： Adam E. Kriegel , Afrooz Family , Sean A. Ramprashad , Sylvain J. Choisel
CPC classification number: H04R3/04 , G10L21/0208 , G10L2021/02082 , H04R1/403 , H04R3/12 , H04R27/00 , H04R29/002 , H04R29/007 , H04R2227/005 , H04S7/305 , H04S7/307
Abstract: An audio system includes one or more loudspeaker cabinets, each having loudspeakers. Sensing logic determines an acoustic environment of the loudspeaker cabinets. The sensing logic may include an echo canceller. A low frequency filter corrects an audio program based on the acoustic environment of the loudspeaker cabinets. The system outputs an omnidirectional sound pattern, which may be low frequency sound, to determine the acoustic environment. The system may produce a directional pattern superimposed on an omnidirectional pattern, if the acoustic environment is in free space. The system may aim ambient content toward a wall and direct content away from the wall, if the acoustic environment is not in free space. The sensing logic automatically determines the acoustic environment upon initial power up and when position changes of loudspeaker cabinets are detected. Accelerometers may detect position changes of the loudspeaker cabinets.
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公开(公告)号：US10299039B2
公开(公告)日：2019-05-21
申请号：US15613049
申请日：2017-06-02
Applicant: Apple Inc.
Inventor： Adam E. Kriegel , Afrooz Family , Sean A. Ramprashad , Sylvain J. Choisel
Abstract: An audio system includes one or more loudspeaker cabinets, each having loudspeakers. Sensing logic determines an acoustic environment of the loudspeaker cabinets. The sensing logic may include an echo canceller. A low frequency filter corrects an audio program based on the acoustic environment of the loudspeaker cabinets. The system outputs an omnidirectional sound pattern, which may be low frequency sound, to determine the acoustic environment. The system may produce a directional pattern superimposed on an omnidirectional pattern, if the acoustic environment is in free space. The system may aim ambient content toward a wall and direct content away from the wall, if the acoustic environment is not in free space. The sensing logic automatically determines the acoustic environment upon initial power up and when position changes of loudspeaker cabinets are detected. Accelerometers may detect position changes of the loudspeaker cabinets.
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公开(公告)号：US10264351B2
公开(公告)日：2019-04-16
申请号：US15613040
申请日：2017-06-02
Applicant: Apple Inc.
Inventor： Sylvain J. Choisel , Adam E. Kriegel
Abstract: An audio system embodiment includes a loudspeaker cabinet having at least one loudspeaker transducer and defining a longitudinal axis. Several microphones are distributed around the longitudinal axis, defining an array of microphones. A reference microphone is positioned in the loudspeaker cabinet, e.g., in a rear chamber of the at least one loudspeaker transducer. The audio system includes a processor and a memory having instructions that, when executed by the processor, cause the audio system to receive an audio signal from each distributed microphone and the reference microphone, and therefrom to estimate a direction, relative to the plurality of microphones, of a nearby, acoustically reflective surface. Responsive to the estimated direction, the audio system affects a mode of operation, e.g., beam forms an audio output in a selected direction corresponding to the estimated direction of the acoustically reflective surface. Related principles are described by way of reference to exemplary embodiments.
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公开(公告)号：US20180352333A1
公开(公告)日：2018-12-06
申请号：US15636967
申请日：2017-06-29
Applicant: Apple Inc.
Inventor： Adam E. Kriegel , Afrooz Family , Sean A. Ramprashad , Sylvain J. Choisel
IPC: H04R3/04 , G10L21/0208 , H04R1/40 , H04R29/00 , H04R3/12
CPC classification number: H04R3/04 , G10L21/0208 , G10L2021/02082 , H04R1/403 , H04R3/12 , H04R27/00 , H04R29/002 , H04R29/007 , H04R2227/005 , H04S7/305 , H04S7/307
Abstract: An audio system includes one or more loudspeaker cabinets, each having loudspeakers. The system outputs an omnidirectional sound pattern to determine the acoustic environment. Sensing logic determines an acoustic environment of the loudspeaker cabinets. The sensing logic may include an echo canceller. A playback mode processor adjusts an audio program according to a playback mode determined from the acoustic environment of the audio system. The system may produce a directional pattern superimposed on an omnidirectional pattern, if the acoustic environment is in free space. The system may aim ambient content toward a wall and direct content away from the wall, if the acoustic environment is not in free space. The sensing logic automatically determines the acoustic environment upon initial power up and when position changes of loudspeaker cabinets are detected. Accelerometers may detect position changes of the loudspeaker cabinets.
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公开(公告)号：US20180352324A1
公开(公告)日：2018-12-06
申请号：US15613040
申请日：2017-06-02
Applicant: Apple Inc.
Inventor： Sylvain J. Choisel , Adam E. Kriegel
Abstract: An audio system embodiment includes a loudspeaker cabinet having at least one loudspeaker transducer and defining a longitudinal axis. Several microphones are distributed around the longitudinal axis, defining an array of microphones. A reference microphone is positioned in the loudspeaker cabinet, e.g., in a rear chamber of the at least one loudspeaker transducer. The audio system includes a processor and a memory having instructions that, when executed by the processor, cause the audio system to receive an audio signal from each distributed microphone and the reference microphone, and therefrom to estimate a direction, relative to the plurality of microphones, of a nearby, acoustically reflective surface. Responsive to the estimated direction, the audio system affects a mode of operation, e.g., beam forms an audio output in a selected direction corresponding to the estimated direction of the acoustically reflective surface. Related principles are described by way of reference to exemplary embodiments.
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