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    Loudspeaker arrangement
    2.
    发明授权
    Loudspeaker arrangement 有权

    公开(公告)号：US12028692B2

    公开(公告)日：2024-07-02

    申请号：US17766590

    申请日：2019-10-30

    Applicant: Harman Becker Automotive Systems GmbH

    Inventor： Martin Olsen ,  Lars Goller

    IPC: H04R5/00 ,  H04R1/26 ,  H04R5/02 ,  H04R1/32

    CPC classification number: H04R5/02 ,  H04R1/26 ,  H04R1/323 ,  H04R2499/13

    Abstract: 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.

    TRANSFORM AMBISONIC COEFFICIENTS USING AN ADAPTIVE NETWORK FOR PRESERVING SPATIAL DIRECTION
    5.
    发明公开
    TRANSFORM AMBISONIC COEFFICIENTS USING AN ADAPTIVE NETWORK FOR PRESERVING SPATIAL DIRECTION 审中-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

    Applicant: QUALCOMM Incorporated

    Inventor： Lae-Hoon KIM ,  Shankar THAGADUR SHIVAPPA ,  S M Akramus SALEHIN ,  Shuhua ZHANG ,  Erik VISSER

    IPC: G10L19/038 ,  H04R5/00 ,  G10L19/002

    CPC classification number: G10L19/038 ,  H04R5/00 ,  G10L19/002 ,  H04S2420/11 ,  H04R2430/21 ,  G10L19/008

    Abstract: 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.

    Transform ambisonic coefficients using an adaptive network
    6.
    发明授权
    Transform ambisonic coefficients using an adaptive network 有权

    公开(公告)号：US11636866B2

    公开(公告)日：2023-04-25

    申请号：US17210357

    申请日：2021-03-23

    Applicant: QUALCOMM Incorporated

    Inventor： Lae-Hoon Kim ,  Shankar Thagadur Shivappa ,  S M Akramus Salehin ,  Shuhua Zhang ,  Erik Visser

    IPC: G10L19/008 ,  G10L19/038 ,  H04R5/00 ,  G10L19/002

    Abstract: 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.

    Method and apparatus for screen related adaptation of a Higher-Order Ambisonics audio signal
    7.
    发明授权
    Method and apparatus for screen related adaptation of a Higher-Order Ambisonics audio signal 有权

    公开(公告)号：US11570566B2

    公开(公告)日：2023-01-31

    申请号：US17558581

    申请日：2021-12-21

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Peter Jax ,  Johannes Boehm ,  William Redmann

    IPC: H04S7/00 ,  H04R5/00 ,  G10L19/008

    Abstract: 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.

    Apparatus and method for obtaining directional audio signals
    8.
    发明授权
    Apparatus and method for obtaining directional audio signals 有权

    公开(公告)号：US11477569B2

    公开(公告)日：2022-10-18

    申请号：US17205352

    申请日：2021-03-18

    Applicant: Cirrus Logic International Semiconductor Ltd.

    Inventor： Dayong Zhou ,  Brad Zwernemann

    IPC: H04R5/00 ,  H04R1/40 ,  H04R3/00 ,  G06F17/14 ,  H04R29/00

    Abstract: 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.

    Detection of microphone orientation and location for directional audio pickup
    9.
    发明授权
    Detection of microphone orientation and location for directional audio pickup 有权

    公开(公告)号：US11425502B2

    公开(公告)日：2022-08-23

    申请号：US17025117

    申请日：2020-09-18

    Applicant: Cisco Technology, Inc.

    Inventor： Johan Ludvig Nielsen ,  Håvard Kjellmo Arnestad ,  David Alejandro Rivas Méndez ,  Jochen C. Schirdewahn

    IPC: H04R5/00 ,  H04R5/027 ,  H04N7/15 ,  H04R1/40

    Abstract: 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.

    Methods of controlling a digital display based on sensor data, and related systems
    10.
    发明授权
    Methods of controlling a digital display based on sensor data, and related systems 有权

    公开(公告)号：US11412338B2

    公开(公告)日：2022-08-09

    申请号：US17112025

    申请日：2020-12-04

    Applicant: DUKE ENERGY CORPORATION

    Inventor： Norvin Clontz, II ,  James Douglas Cleveland ,  Steven Patrick Hinkel

    IPC: H04R5/00 ,  H04S5/02 ,  H04S7/00 ,  G08G1/005 ,  H04L67/12 ,  H04R5/04

    Abstract: 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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