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公开(公告)号：US20170280265A1
公开(公告)日：2017-09-28
申请号：US15514455
申请日：2015-09-29
Applicant: APPLE INC.
Inventor： Bruce C. Po
CPC classification number: H04S7/302 , G06F3/162 , G06F3/165 , H04R1/403 , H04R3/04 , H04R3/12 , H04R5/04 , H04R29/007 , H04R2201/025 , H04R2201/405 , H04S7/30 , H04S7/301
Abstract: A system and method is described for determining whether a loudspeaker device has relocated, tilted, rotated, or changed environment such that one or more parameters for driving the loudspeaker may be modified and/or a complete reconfiguration of the loudspeaker system may be performed. In one embodiment, the system may include a set of sensors. The sensors provide readings that are analyzed to determine 1) whether the loudspeaker has moved since a previous analysis and/or 2) a distance of movement and/or a degree change in orientation of the loudspeaker since the previous analysis. Upon determining the level of movement is below a threshold value, the system adjusts previous parameters used to drive one or more of the loudspeakers. By adjusting previous parameters instead of performing a complete recalibration, the system provides a more efficient technique for ensuring that the loudspeakers continue to produce accurate sound for the listener.
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公开(公告)号：US20200245088A1
公开(公告)日：2020-07-30
申请号：US16778634
申请日：2020-01-31
Applicant: Apple Inc.
Inventor： Bruce C. Po , Richard M. Powell , Aram M. Lindahl , Baptiste P. Paquier , Phillip A. Kamp
Abstract: A system and method is described for determining whether a loudspeaker device has relocated, tilted, rotated, or changed environment such that one or more parameters for driving the loudspeaker may be modified and/or a complete reconfiguration of the loudspeaker system may be performed. In one embodiment, the system may include a set of sensors. The sensors provide readings that are analyzed to determine 1) whether the loudspeaker has moved since a previous analysis and/or 2) a distance of movement and/or a degree change in orientation of the loudspeaker since the previous analysis. Upon determining the level of movement is below a threshold value, the system adjusts previous parameters used to drive one or more of the loudspeakers. By adjusting previous parameters instead of performing a complete recalibration, the system provides a more efficient technique for ensuring that the loudspeakers continue to produce accurate sound for the listener.
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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：US11979734B2
公开(公告)日：2024-05-07
申请号：US17411893
申请日：2021-08-25
Applicant: Apple Inc.
Inventor： Bruce C. Po , Richard M. Powell , Aram M. Lindahl , Baptiste P. Paquier , Phillip A. Kamp
CPC classification number: H04S7/302 , G06F3/162 , G06F3/165 , H04R1/403 , H04R3/04 , H04R3/12 , H04S7/30 , H04R5/04 , H04R29/007 , H04R2201/025 , H04R2201/405 , H04S7/301
Abstract: A system and method is described for determining whether a loudspeaker device has relocated, tilted, rotated, or changed environment such that one or more parameters for driving the loudspeaker may be modified and/or a complete reconfiguration of the loudspeaker system may be performed. In one embodiment, the system may include a set of sensors. The sensors provide readings that are analyzed to determine 1) whether the loudspeaker has moved since a previous analysis and/or 2) a distance of movement and/or a degree change in orientation of the loudspeaker since the previous analysis. Upon determining the level of movement is below a threshold value, the system adjusts previous parameters used to drive one or more of the loudspeakers. By adjusting previous parameters instead of performing a complete recalibration, the system provides a more efficient technique for ensuring that the loudspeakers continue to produce accurate sound for the listener.
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公开(公告)号：US11109173B2
公开(公告)日：2021-08-31
申请号：US16778634
申请日：2020-01-31
Applicant: Apple Inc.
Inventor： Bruce C. Po , Richard M. Powell , Aram M. Lindahl , Baptiste P. Paquier , Phillip A. Kamp
Abstract: A system and method is described for determining whether a loudspeaker device has relocated, tilted, rotated, or changed environment such that one or more parameters for driving the loudspeaker may be modified and/or a complete reconfiguration of the loudspeaker system may be performed. In one embodiment, the system may include a set of sensors. The sensors provide readings that are analyzed to determine 1) whether the loudspeaker has moved since a previous analysis and/or 2) a distance of movement and/or a degree change in orientation of the loudspeaker since the previous analysis. Upon determining the level of movement is below a threshold value, the system adjusts previous parameters used to drive one or more of the loudspeakers. By adjusting previous parameters instead of performing a complete recalibration, the system provides a more efficient technique for ensuring that the loudspeakers continue to produce accurate sound for the listener.
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Patent Agency Ranking
公开(公告)号：US10567901B2
公开(公告)日：2020-02-18
申请号：US15514455
申请日：2015-09-29
Applicant: Apple Inc.
Inventor： Bruce C. Po , Richard M. Powell , Aram M. Lindahl , Baptiste P. Paquier , Phillip A. Kamp
Abstract: A system and method is described for determining whether a loudspeaker device has relocated, tilted, rotated, or changed environment such that one or more parameters for driving the loudspeaker may be modified and/or a complete reconfiguration of the loudspeaker system may be performed. In one embodiment, the system may include a set of sensors. The sensors provide readings that are analyzed to determine 1) whether the loudspeaker has moved since a previous analysis and/or 2) a distance of movement and/or a degree change in orientation of the loudspeaker since the previous analysis. Upon determining the level of movement is below a threshold value, the system adjusts previous parameters used to drive one or more of the loudspeakers. By adjusting previous parameters instead of performing a complete recalibration, the system provides a more efficient technique for ensuring that the loudspeakers continue to produce accurate sound for the listener.
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公开(公告)号：US09607602B2
公开(公告)日：2017-03-28
申请号：US14304731
申请日：2014-06-13
Applicant: Apple Inc.
Inventor： Bruce C. Po , Vladan Bajic
IPC: G10K11/16 , G10K11/175 , G10K11/178
CPC classification number: G10K11/175 , G10K11/178 , G10K11/1783 , G10K11/17854 , G10K11/17885 , G10K2210/1081 , G10K2210/3056
Abstract: An anti-noise signal is produced in accordance with an active noise cancellation process (ANC), at an input of a speaker so as to control how much background noise a user can hear. Strength of the anti-noise signal is adjusted gradually, rather than abruptly, in proportion to decreasing or increasing sound pressure level (SPL) of the background noise, during inactivation or activation of the ANC process. Other embodiments are also described and claimed.
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公开(公告)号：US20150071453A1
公开(公告)日：2015-03-12
申请号：US14304731
申请日：2014-06-13
Applicant: Apple Inc.
Inventor： Bruce C. Po , Vladan Bajic
IPC: G10K11/175
CPC classification number: G10K11/175 , G10K11/178 , G10K11/1783 , G10K11/17854 , G10K11/17885 , G10K2210/1081 , G10K2210/3056
Abstract: An anti-noise signal is produced in accordance with an active noise cancellation process (ANC), at an input of a speaker so as to control how much background noise a user can hear. Strength of the anti-noise signal is adjusted gradually, rather than abruptly, in proportion to decreasing or increasing sound pressure level (SPL) of the background noise, during inactivation or activation of the ANC process. Other embodiments are also described and claimed.
Abstract translation: 在扬声器的输入端，根据有源噪声消除处理（ANC）产生抗噪声信号，以便控制用户可以听到多少背景噪声。 在ANC过程的失活或激活期间，抗噪声信号的强度逐渐调整而不是突然地与背景噪声的声压级（SPL）的降低或增加成比例。 还描述和要求保护其他实施例。
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公开(公告)号：US20210385602A1
公开(公告)日：2021-12-09
申请号：US17411893
申请日：2021-08-25
Applicant: Apple Inc.
Inventor： Bruce C. Po , Richard M. Powell , Aram M. Lindahl , Baptiste P. Paquier , Phillip A. Kamp
Abstract: A system and method is described for determining whether a loudspeaker device has relocated, tilted, rotated, or changed environment such that one or more parameters for driving the loudspeaker may be modified and/or a complete reconfiguration of the loudspeaker system may be performed. In one embodiment, the system may include a set of sensors. The sensors provide readings that are analyzed to determine 1) whether the loudspeaker has moved since a previous analysis and/or 2) a distance of movement and/or a degree change in orientation of the loudspeaker since the previous analysis. Upon determining the level of movement is below a threshold value, the system adjusts previous parameters used to drive one or more of the loudspeakers. By adjusting previous parameters instead of performing a complete recalibration, the system provides a more efficient technique for ensuring that the loudspeakers continue to produce accurate sound for the listener.
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公开(公告)号：US09928842B1
公开(公告)日：2018-03-27
申请号：US15275312
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Juha O. Merimaa , Bruce C. Po , Adam E. Kriegel
IPC: H03G5/00 , G10L19/008 , H04S7/00 , H04S5/00 , H04S3/00
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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