公开(公告)号：US11792565B2

公开(公告)日：2023-10-17

申请号：US17242060

申请日：2021-04-27

Applicant: Advanced Semiconductor Engineering, Inc.

Inventor： Chih Lung Lin ,  Kuei-Hao Tseng ,  Kai Hung Wang

IPC: H04R1/24 ,  H04R1/40 ,  H04R3/12 ,  H04R1/26

CPC classification number: H04R1/403 ,  H04R1/24 ,  H04R1/26 ,  H04R3/12 ,  H04R2201/405 ,  H04R2430/20

Abstract: An electronic module is provided. The electronic module includes a first transducer and a second transducer. The first transducer is configured to radiate a first ultrasonic wave. The second transducer is configured to radiate a second ultrasonic wave. A location of the first transducer is configured to be adjustable with respect to the second transducer.

公开(公告)号：US11765498B2

公开(公告)日：2023-09-19

申请号：US17834592

申请日：2022-06-07

Applicant: Sennheiser electronic GmbH & Co. KG

Inventor： J. Douglas Rollow, IV ,  Lance Reichert ,  Daniel Voss

IPC: H04R3/00 ,  H04R1/40 ,  H04R3/04

CPC classification number: H04R1/406 ,  H04R3/005 ,  H04R3/04 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2430/23

Abstract: A microphone array system or microphone array unit for a conference system is provided that includes a front board, side walls and a plurality of microphone capsules arranged in or on the front board mountable on or in a ceiling of a conference room. The microphone array system or unit is adapted for generating a steerable beam within a maximum detection angle range. The microphone array system or microphone array unit includes a processing unit which is configured to receive the output signals of the microphone capsules and to steer the beam based on the received output signal of the microphone array. The processing unit is configured to control the microphone array to limit the detection angle range to exclude at least one predetermined exclusion sector in which a noise source is located.

公开(公告)号：US20190253794A1

公开(公告)日：2019-08-15

申请号：US16270903

申请日：2019-02-08

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Mark R. P. Thomas ,  Jan-Hendrik Hanschke

IPC: H04R3/00 ,  H04R1/40 ,  H04S7/00

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/401 ,  H04R2201/405 ,  H04S3/02 ,  H04S7/30 ,  H04S2400/15 ,  H04S2420/03 ,  H04S2420/11

Abstract: A microphone array for capturing sound field audio content may include a first set of directional microphones disposed on a first framework at a first radius from a center and arranged in at least a first portion of a first spherical surface. The microphone array may include a second set of directional microphones disposed on a second framework at a second radius from the center and arranged in at least a second portion of a second spherical surface. The second radius may be larger than the first radius. The directional microphones may capture information that allows for the extraction of Higher-Order Ambisonics (HOA) signals.

公开(公告)号：US20190104357A1

公开(公告)日：2019-04-04

申请号：US15721644

申请日：2017-09-29

Applicant: Apple Inc.

Inventor： Joshua D. Atkins ,  Mehrez Souden ,  Symeon Delikaris-Manias ,  Peter Raffensperger

IPC: H04R1/40 ,  G06N3/08 ,  G06F17/30

CPC classification number: H04R1/406 ,  G06F16/61 ,  G06N3/08 ,  H04R2201/405 ,  H04R2430/23 ,  H04R2499/11 ,  H04S2400/01 ,  H04S2400/15

Abstract: Impulse responses of a device are measured. A database of sound files is generated by convolving source signals with the impulse responses of the device. The sound files from the database are transformed into time-frequency domain. One or more sub-band directional features is estimated at each sub-band of the time-frequency domain. A deep neural network (DNN) is trained for each sub-band based on the estimated one or more sub-band directional features and a target directional feature.

公开(公告)号：US20190020937A1

公开(公告)日：2019-01-17

申请号：US16069799

申请日：2017-01-16

Applicant: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED

Inventor： Paul Wayne PEACE, Jr. ,  Derrick RODGERS

IPC: H04R1/02 ,  H04R9/06 ,  H04R3/04 ,  H04R1/34 ,  H04R1/22

CPC classification number: H04R1/24 ,  H04R1/025 ,  H04R1/22 ,  H04R1/2857 ,  H04R1/345 ,  H04R3/04 ,  H04R5/02 ,  H04R9/063 ,  H04R2201/405

Abstract: A surface mounted loudspeaker design is provided that mitigates the interference between direct low frequency (LF) energy and reflected LF energy by breaking the LF energy from an LF driver into multiple paths using one or more of waveguides, driver load plates, and enclosure ports to diffuse the reflected energy and minimize frequency response errors. One or more embodiments of the present disclosure provides a loudspeaker have multiple acoustic exits strategically designed and located to generate, for example, three major wave front arrivals—2 source and 1 reflection—at target angles with favorable lag times, mitigating the cancellation notching and frequency errors that occur in conventional loudspeaker designs.

公开(公告)号：US20180338205A1

公开(公告)日：2018-11-22

申请号：US15833404

申请日：2017-12-06

Applicant: Shure Acquisition Holdings, Inc.

Inventor： Mathew T. Abraham ,  David Grant Cason ,  John Casey Gibbs ,  Gregory William Lantz ,  Albert Francis McGovern, JR. ,  Brent Robert Shumard

IPC: H04R1/40 ,  H04R31/00 ,  H04R1/02

CPC classification number: H04R1/406 ,  H04R1/02 ,  H04R31/00 ,  H04R2201/021 ,  H04R2201/40 ,  H04R2201/401 ,  H04R2201/405

Abstract: Embodiments include a microphone assembly comprising an array microphone and a housing configured to support the array microphone and sized and shaped to be mountable in a drop ceiling in place of at least one of a plurality of ceiling tiles included in the drop ceiling. A front face of the housing includes a sound-permeable screen having a size and shape that is substantially similar to the at least one of the plurality of ceiling tiles. Embodiments also include an array microphone system comprising a plurality of microphones arranged, on a substrate, in a number of concentric, nested rings of varying sizes around a central point of the substrate. Each ring comprises a subset of the plurality of microphones positioned at predetermined intervals along a circumference of the ring.

公开(公告)号：US20180227669A1

公开(公告)日：2018-08-09

申请号：US15825098

申请日：2017-11-28

Applicant: Logitech Europe S.A.

Inventor： Douglas George MORTON ,  Daniel Ryan MARQUEZ ,  Matthew James GREEN

IPC: H04R3/00 ,  H04R1/40

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2430/23

Abstract: Embodiments of the disclosure generally include a method and apparatus for receiving and separating unwanted external noise from an audible input received from an audible source using an audible signal processing system that contains a plurality of audible signal sensing devices that are arranged and configured to detect an audible signal that is received from any position or angle within three dimensional space. The audible signal processing system is configured to analyze the received audible signals using a first signal processing technique that is able to separate unwanted low frequency range noise from the received audible signal and a second signal processing technique that is able to separate unwanted higher frequency range noise from the received audible signal. The audible signal processing system can then combine the signals processed by the first and second signal processing techniques to form a desired audible signal that has a high signal-to-noise ratio throughout the full speech range.

公开(公告)号：US20180213326A1

公开(公告)日：2018-07-26

申请号：US15928257

申请日：2018-03-22

Applicant: Nokia Technologies OY

Inventor： Anu Hannele Huttunen ,  Jorma Juhani Makinen

IPC: H04R5/027 ,  H04R1/32 ,  H04R3/00 ,  H04R1/26

CPC classification number: H04R5/027 ,  H04R1/265 ,  H04R1/326 ,  H04R3/005 ,  H04R2201/405 ,  H04R2203/12 ,  H04R2430/03

Abstract: An apparatus for providing directional audio capture may include a processor and memory storing executable computer program code that cause the apparatus to at least perform operations including assigning at least one beam direction, among a plurality of beam directions, in which to direct directionality of an output signal of one or more microphones. The computer program code may further cause the apparatus to divide microphone signals of the microphones into selected frequency subbands wherein an analysis performed. The computer program code may further cause the apparatus to select at least one set of microphones of the apparatus for selected frequency subbands. The computer program code may further cause the apparatus to optimize the assigned at least one beam direction by adjusting a beamformer parameter(s) based on the selected set of microphones and at least one of the selected frequency subbands. Corresponding methods and computer program products are also provided.

公开(公告)号：US09955262B2

公开(公告)日：2018-04-24

申请号：US15075030

申请日：2016-03-18

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

Inventor： René Rodigast ,  Michael Strauss

IPC: H04R5/02 ,  H04R1/40 ,  H04R3/12 ,  H04R27/00 ,  H04S3/00

CPC classification number: H04R5/02 ,  H04R1/403 ,  H04R3/12 ,  H04R27/00 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/01 ,  H04S3/00 ,  H04S2420/13

Abstract: A driving device for a sound system by loudspeaker signals, wherein the sound system has a wave field synthesis loudspeaker array and one or several supply loudspeakers arranged separate from the wave field synthesis array includes an audio input for receiving at least one audio signal from at least one sound source, a position input for receiving information on a position of the sound source, a wave field synthesis unit for calculating loudspeaker signals for the loudspeakers of the wave field synthesis loudspeaker array, and a provider for providing the loudspeaker signal for the one or the several supply loudspeakers. The driving device enables a sound system by means of which sound localization becomes possible for the audience and at the same time pleasant levels can be achieved also in the first rows of the audience.

公开(公告)号：US20180098167A1

公开(公告)日：2018-04-05

申请号：US15681937

申请日：2017-08-21

Applicant: Sonos, Inc.

Inventor： Brendan Welch ,  Romi Kadri ,  Jonathon Reilly

IPC: H04R29/00

CPC classification number: H04R29/005 ,  G01S3/8003 ,  G01S3/803 ,  H04R1/406 ,  H04R3/005 ,  H04R3/12 ,  H04R5/04 ,  H04R29/007 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2205/024 ,  H04R2227/003 ,  H04R2227/005 ,  H04R2420/07 ,  H04R2430/20 ,  H04R2430/21 ,  H04R2499/11 ,  H04S7/301

Abstract: Aspects of a multi-orientation playback device including at least one microphone array are discussed. A method may include determining an orientation of the playback device which includes at least one microphone array and determining at least one microphone training response for the playback device from a plurality of microphone training responses based on the orientation of the playback device. The at least one microphone array can detect a sound input, and the location information of a source of the sound input can be determined based on the at least one microphone training response and the detected sound input. Based on the location information of the source, the directional focus of the at least one microphone array can be adjusted, and the sound input can be captured based on the adjusted directional focus.