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公开(公告)号：US12028692B2
公开(公告)日：2024-07-02
申请号：US17766590
申请日：2019-10-30
发明人： Martin Olsen , Lars Goller
CPC分类号： H04R5/02 , H04R1/26 , H04R1/323 , H04R2499/13
摘要： A loudspeaker arrangement comprises a mid-range loudspeaker arranged in a dashboard of a vehicle, a first tweeter arranged adjacent to the mid-range loudspeaker in the dashboard of the vehicle, and a second tweeter arranged adjacent to the mid-range loudspeaker in the dashboard of the vehicle. The mid-range loudspeaker is arranged between the first tweeter and the second tweeter. The mid-range loudspeaker is a non-directional loudspeaker that radiates sound towards a driver's seat and towards a passenger seat in equal parts. The first tweeter is a directional loudspeaker that radiates sound primarily towards the passenger seat, and the second tweeter is a directional loudspeaker that radiates sound primarily towards the driver's seat.
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公开(公告)号：US11856148B2
公开(公告)日：2023-12-26
申请号：US18133007
申请日：2023-04-11
申请人： Glen A. Norris , Philip Scott Lyren
发明人： Glen A. Norris , Philip Scott Lyren
CPC分类号： H04M3/568 , G06F3/011 , G06F3/017 , G06F3/165 , G10L21/028 , H04S1/005 , H04S7/302 , H04S7/304 , H04S7/305 , H04S7/306 , H04S2400/11 , H04S2400/13 , H04S2420/01
摘要： Methods and apparatus assist listeners in distinguishing between electronically generated binaural sound and physical environment sound while the listener wears a wearable electronic device that provides the binaural sound to the listener. The wearable electronic device generates a visual alert or audio alert when the electronically generated binaural sound occurs.
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公开(公告)号：US11750996B2
公开(公告)日：2023-09-05
申请号：US17893753
申请日：2022-08-23
发明人： Florian Keiler , Johannes Boehm
CPC分类号： H04S3/02 , H04S7/308 , H04S2400/11 , H04S2420/07 , H04S2420/11
摘要： Improved methods and/or apparatus for decoding an encoded audio signal in soundfield format for L loudspeakers. The method and/or apparatus can render an Ambisonics format audio signal to 2D loudspeaker setup(s) based on a rendering matrix. The rendering matrix has elements based on loudspeaker positions and wherein the rendering matrix is determined based on weighting at least an element of a first matrix with a weighting factor
g
=
1
L
.
The first matrix is determined based on positions of the L loudspeakers and at least a virtual position of at least a virtual loudspeaker that is added to the positions of the L loudspeakers.-
4.发明公开公开(公告)号：US20230260525A1
公开(公告)日：2023-08-17
申请号：US18138684
申请日：2023-04-24
IPC分类号： G10L19/038 , H04R5/00 , G10L19/002
CPC分类号： G10L19/038 , H04R5/00 , G10L19/002 , H04S2420/11 , H04R2430/21 , G10L19/008
摘要： A device includes a memory configured to store untransformed ambisonic coefficients at different time segments. The device includes one or more processors configured to obtain the untransformed ambisonic coefficients at the different time segments, where the untransformed ambisonic coefficients at the different time segments represent a soundfield at the different time segments. The one or more processors are configured to apply one adaptive network, based on a constraint that includes preservation of a spatial direction of one or more audio sources in the soundfield at the different time segments, to the untransformed ambisonic coefficients at the different time segments to generate transformed ambisonic coefficients at the different time segments, wherein the transformed ambisonic coefficients at the different time segments represent a modified soundfield at the different time segments, that was modified based on the constraint. The one or more processors are also configured to apply an additional adaptive network.
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公开(公告)号：US11636866B2
公开(公告)日：2023-04-25
申请号：US17210357
申请日：2021-03-23
IPC分类号： G10L19/008 , G10L19/038 , H04R5/00 , G10L19/002
摘要： A device includes a memory configured to store untransformed ambisonic coefficients at different time segments. The device also includes one or more processors configured to obtain the untransformed ambisonic coefficients at the different time segments, where the untransformed ambisonic coefficients at the different time segments represent a soundfield at the different time segments. The one or more processors are also configured to apply one adaptive network, based on a constraint, to the untransformed ambisonic coefficients at the different time segments to generate transformed ambisonic coefficients at the different time segments, wherein the transformed ambisonic coefficients at the different time segments represent a modified soundfield at the different time segments, that was modified based on the constraint.
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6.发明授权公开(公告)号：US11570566B2
公开(公告)日：2023-01-31
申请号：US17558581
申请日：2021-12-21
发明人： Peter Jax , Johannes Boehm , William Redmann
IPC分类号： H04S7/00 , H04R5/00 , G10L19/008
摘要： A method for generating loudspeaker signals associated with a target screen size is disclosed. The method includes receiving a bit stream containing encoded higher order ambisonics signals, the encoded higher order ambisonics signals describing a sound field associated with a production screen size. The method further includes decoding the encoded higher order ambisonics signals to obtain a first set of decoded higher order ambisonics signals representing dominant components of the sound field and a second set of decoded higher order ambisonics signals representing ambient components of the sound field. The method also includes combining the first set of decoded higher order ambisonics signals and the second set of decoded higher order ambisonics signals to produce a combined set of decoded higher order ambisonics signals.
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公开(公告)号：US11477569B2
公开(公告)日：2022-10-18
申请号：US17205352
申请日：2021-03-18
发明人： Dayong Zhou , Brad Zwernemann
摘要： A method of obtaining a directional microphone signal, the method comprising: receiving first and second microphone signals from first and second microphones separated by a distance; obtaining a combined microphone signal based on one or more of the first and second microphone signals; obtaining a difference microphone signal by subtracting the second microphone signal from the first microphone signal; obtaining a transformed combined microphone signal by applying a Hilbert transform to the combined microphone signal; combining the transformed combined microphone signal with the difference microphone signal to obtain the directional microphone signal.
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公开(公告)号：US11425502B2
公开(公告)日：2022-08-23
申请号：US17025117
申请日：2020-09-18
发明人： Johan Ludvig Nielsen , Håvard Kjellmo Arnestad , David Alejandro Rivas Méndez , Jochen C. Schirdewahn
摘要： Methods and a system that automatically determines the spatial relationship of microphone assemblies with respect to a camera of a video conference endpoint through audio signal processing. The video conference endpoint may include at least a microphone assembly and a loudspeaker. The microphone assembly may include a plurality of co-located directional microphones. The video conference endpoint may detect, by the plurality of co-located directional microphones of the microphone assembly, audio emitted from the loudspeaker of the video conference endpoint. The video conference endpoint may then generate data representing a spatial relationship of the microphone assembly with respect to the loudspeaker based on a compilation of the audio detected by the co-located directional microphones of the microphone assembly.
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公开(公告)号：US11412338B2
公开(公告)日：2022-08-09
申请号：US17112025
申请日：2020-12-04
摘要： Methods of operating a system of nodes are provided. A method of operating first and second nodes that are in a system of nodes includes processing first data from a first plurality of sensors of the first node. The method includes controlling a first digital display of the first node in response to the processed first data. The method includes uploading the processed first data from the first node via the Internet. The method includes processing second data from a second plurality of sensors of the second node. The method includes controlling a second digital display of the second node in response to the processed second data. The method includes uploading the processed second data from the second node via the Internet. Each of the first and second nodes is attached to a utility pole, a light pole, a kiosk, or a motor vehicle. Related systems are also provided.
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公开(公告)号：US11363381B2
公开(公告)日：2022-06-14
申请号：US17235611
申请日：2021-04-20
申请人： LG Display Co., Ltd.
发明人： Sungsu Ham , YeongRak Choi , Sungtae Lee , Joongsup Han
摘要： A display apparatus is capable of outputting a stereo sound. The display apparatus includes a display panel configured to display an image; a sound generating device on a rear surface of the display panel; a rear cover on the rear surface of the display panel and configured to support the sound generating device; a partition member between the rear surface of the display panel and the rear cover and configured to divide the display panel into first, second, third, fourth and fifth areas; and first, second, third, fourth, and fifth sound generating devices attached to the rear surface of the display panel and configured to vibrate the display panel. The first, second, third, fourth and fifth sound generating devices are in the first, second, third, fourth and fifth areas, respectively.
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