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公开(公告)号：US11432096B2
公开(公告)日：2022-08-30
申请号：US16297342
申请日：2019-03-08
Applicant: Apple Inc.
Inventor： John J. Baker , Martin E. Johnson , Afrooz Family , Michael B. Howes , Craig M. Stanley , Brad G. Boozer
Abstract: An audio system that adjusts one or more beam patterns emitted by one or more loudspeaker arrays based on the preferences of users/listeners is described. The audio system includes an audio receiver that contains a listener location estimator, a listener identifier, and a voice command processor. Inputs from the listener location estimator, the listener identifier, and the voice command processor are fed into an array processor. The array processor drives the one or more loudspeaker arrays to emit beam patterns into the listening area based on inputs from each of these devices. By examining the location, preferred usage settings, and voice commands from listeners, the generated beam patterns are customized to the explicit and implicit preferences of the listeners with minimal direct input. Other embodiments are also described.
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公开(公告)号：US20220210562A1
公开(公告)日：2022-06-30
申请号：US17695238
申请日：2022-03-15
Applicant: Apple Inc.
Inventor： Martin E. Johnson , Afrooz Family , Darius A. Satongar , Jonathan D. Sheaffer , Lance F. Reichert , Peter V. Jupin
Abstract: In a device or method for rendering a sound program for headphones, a location is received for placing the sound program with respect to first and second ear pieces. If the location is between the first ear piece and the second ear piece, the sound program is filtered to produce low-frequency and high-frequency portions. The high-frequency portion is panned according to the location to produce first and second high-frequency signals. The low-frequency portion and the first high-frequency signal are combined to produce a first headphone driver signal to drive the first ear piece. A second headphone driver signal is similarly produced. The sound program may be a stereo sound program. The device or method may also provide for a location that is between the first ear piece and a near-field boundary. Other aspects are also described.
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公开(公告)号：US11284195B2
公开(公告)日：2022-03-22
申请号：US17107613
申请日：2020-11-30
Applicant: Apple Inc.
Inventor： Martin E. Johnson , Afrooz Family , Darius A. Satongar , Jonathan D. Sheaffer , Lance F. Reichert , Peter V. Jupin
Abstract: In a device or method for rendering a sound program for headphones, a location is received for placing the sound program with respect to first and second ear pieces. If the location is between the first ear piece and the second ear piece, the sound program is filtered to produce low-frequency and high-frequency portions. The high-frequency portion is panned according to the location to produce first and second high-frequency signals. The low-frequency portion and the first high-frequency signal are combined to produce a first headphone driver signal to drive the first ear piece. A second headphone driver signal is similarly produced. The sound program may be a stereo sound program. The device or method may also provide for a location that is between the first ear piece and a near-field boundary. Other aspects are also described.
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公开(公告)号：US20200322718A1
公开(公告)日：2020-10-08
申请号：US16905684
申请日：2020-06-18
Applicant: Apple Inc.
Inventor： Martin E. Johnson , Gordon R. Dix , Michael B. Howes , Gary P. Geaves , Tom-Davy William Jendrik Saux
Abstract: A multi-way speaker array is disclosed that includes rings of transducers of different types. The rings of transducers may encircle the cabinet of the speaker array such that the speaker array is rotationally symmetric. The distance between rings of transducers may be based on a logarithmic scale. By separating rings of transducers using logarithmic spacing, denser transducer spacing at short wavelengths is achieved while limiting the number of transducers needed for longer wavelengths by spacing them in larger and larger logarithmic increments. Transducers with overlapping frequency ranges may be used in the speaker array to avoid initial dips or shortfalls in directivity for corresponding beam patterns.
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公开(公告)号：US10798482B2
公开(公告)日：2020-10-06
申请号：US16185474
申请日：2018-11-09
Applicant: Apple Inc.
Inventor： Martin E. Johnson , Gordon R. Dix , Michael B. Howes , Gary P. Geaves , Tom-Davy William Jendrik Saux
Abstract: A multi-way speaker array is disclosed that includes rings of transducers of different types. The rings of transducers may encircle the cabinet of the speaker array such that the speaker array is rotationally symmetric. The distance between rings of transducers may be based on a logarithmic scale. By separating rings of transducers using logarithmic spacing, denser transducer spacing at short wavelengths is achieved while limiting the number of transducers needed for longer wavelengths by spacing them in larger and larger logarithmic increments. Transducers with overlapping frequency ranges may be used in the speaker array to avoid initial dips or shortfalls in directivity for corresponding beam patterns.
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Patent Agency Ranking
公开(公告)号：US20200236489A1
公开(公告)日：2020-07-23
申请号：US16651316
申请日：2018-09-25
Applicant: Apple Inc.
Inventor： Juha O. Merimaa , Christopher T. Eubank , Martin E. Johnson , Stuart J. Wood , Deepak Natarajan
Abstract: Methods and apparatus for predictive head-tracked binaural audio rendering in which a rendering device renders multiple audio streams for different possible head locations based on head tracking data received from a headset, for example audio streams for the last known location and one or more predicted or possible locations, and transmits the multiple audio streams to the headset. The headset then selects and plays one of the audio streams that is closest to the actual head location based on current head tracking data. If none of the audio streams closely match the actual head location, two closest audio streams may be mixed. Transmitting multiple audio streams to the headset and selecting or mixing an audio stream on the headset may mitigate or eliminate perceived head tracking latency.
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公开(公告)号：US20190222950A1
公开(公告)日：2019-07-18
申请号：US16240161
申请日：2019-01-04
Applicant: Apple Inc.
Inventor： Jonathan D. Sheaffer , Joshua D. Atkins , Martin E. Johnson , Stuart J. Wood
IPC: H04S7/00 , G06T7/20 , G10L19/008
CPC classification number: H04S7/30 , G06T7/20 , G10L19/008 , G10L21/0272 , G10L2021/02082 , G10L2021/02166 , H04S3/00 , H04S7/302 , H04S2400/11 , H04S2400/15 , H04S2420/01
Abstract: Image analysis of a video signal is performed to produce first metadata, and audio analysis of a multi-channel sound track associated with the video signal is performed to produce second metadata. A number of time segments of the sound track are processed, wherein each time segment is processed by either (i) spatial filtering of the audio signals or (ii) spatial rendering of the audio signals, not both, wherein for each time segment a decision was made to select between the spatial filtering or the spatial rendering, in accordance with the first and second metadata. A mix of the processed sound track and the video signal is generated. Other embodiments are also described and claimed.
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公开(公告)号：US10334355B2
公开(公告)日：2019-06-25
申请号：US15514815
申请日：2015-09-29
Applicant: Apple Inc.
Inventor： Martin E. Johnson , Christopher Wilk , John H. Sheerin , Suzanne Hardy , Tom-Davy William Jendrik Saux
Abstract: A loudspeaker array has a cabinet in which is formed a continuously open circumferential horn for controlling sound produced by a number of transducers which are positioned in the cabinet, at a throat of the horn. The continuously open circumferential horn may 1) improve the power efficiency of the transducers without unwanted aliasing effects in audible frequency ranges and 2) provide vertical control for sound emitted by the transducers by flaring.
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公开(公告)号：US10264383B1
公开(公告)日：2019-04-16
申请号：US15275206
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Martin E. Johnson , Justin D. Crosby , Tom-Davy W. Saux
Abstract: Some embodiments provide a multi-listener stereo image array which provides multiple separate stereo images of audio content to each of multiple listeners while mitigating interference of audio signals which provide separate stereo images to separate listeners. The array can include sensors which can monitor the environment and can identify relative positions of various listeners and can further control the audio signal patterns generated by the drivers of the array to propagate towards positions associated with particular listeners and be at least partially restricted from propagating towards positions associated with other listeners.
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公开(公告)号：US20190082254A1
公开(公告)日：2019-03-14
申请号：US16185474
申请日：2018-11-09
Applicant: Apple Inc.
Inventor： Martin E. Johnson , Gordon R. Dix , Michael B. Howes , Gary P. Geaves , Tom-Davy William Jendrik Saux
Abstract: A multi-way speaker array is disclosed that includes rings of transducers of different types. The rings of transducers may encircle the cabinet of the speaker array such that the speaker array is rotationally symmetric. The distance between rings of transducers may be based on a logarithmic scale. By separating rings of transducers using logarithmic spacing, denser transducer spacing at short wavelengths is achieved while limiting the number of transducers needed for longer wavelengths by spacing them in larger and larger logarithmic increments. Transducers with overlapping frequency ranges may be used in the speaker array to avoid initial dips or shortfalls in directivity for corresponding beam patterns.
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