公开(公告)号：US11902755B2

公开(公告)日：2024-02-13

申请号：US17761136

申请日：2019-11-12

Applicant: Alibaba Group Holding Limited

Inventor： Weilong Huang ,  Jinwei Feng

IPC: H04R3/00 ,  H04R1/40

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/403

Abstract: Apparatus and method provided herein are directed to a linear differential directional microphone array (LDDMA), which takes into account the directionality of the array elements. The LDDMA may be designed by generating a steering vector for a linear array (LA) having preselected parameters including parameters δ, p, θ, N, and M, generating a constraint matrix based on the steering vector, reformulating the constraint matrix based on a microphone response matrix and a steering matrix, obtaining a beamformer by applying a minimum norm solution in terms of the constraint matrix, verifying a desired characteristic of the LA by calculating the beamformer for a desired direction, and constructing the LA based on the preselected parameters and the beamformer.

公开(公告)号：US11856346B2

公开(公告)日：2023-12-26

申请号：US17734995

申请日：2022-05-02

Applicant: MSG Entertainment Group, LLC ,  Holoplot GmbH

Inventor： Erik Hockman ,  Alex Luthwaite ,  Emad Yacoub Hanna

IPC: H04R1/40 ,  H04R1/02 ,  G06F3/147 ,  H04R3/12

CPC classification number: H04R1/028 ,  G06F3/147 ,  H04R1/403 ,  H04R3/12 ,  H04R2201/403 ,  H04R2499/15

Abstract: An integrated audio-visual system is disclosed for delivering an event to one or more spectators. The integrated audio-visual system includes one or more loudspeakers that are positioned behind one or more visual displays to be effectively behind the one or more visual displays to be shielded from the field of view of the one or more spectators. The one or more visual displays are specially designed and manufactured to allow sound associated with the event to propagate from the one or more loudspeakers with minimal acoustical distortion and/or minimum acoustical vibration while presenting a visual representation of the event to the one or more spectators. Moreover, the one or more loudspeakers and the one or more visual displays are situated to be a predetermined displacement from each other to further minimize acoustical distortion.

公开(公告)号：US20230379647A1

公开(公告)日：2023-11-23

申请号：US18030664

申请日：2020-10-09

Applicant: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED

Inventor： James BUNNING

IPC: H04S7/00 ,  H04R5/02 ,  H04S3/00

CPC classification number: H04S7/302 ,  H04S7/301 ,  H04R5/02 ,  H04S3/008 ,  H04R2201/403 ,  H04R2203/12 ,  H04S2400/01 ,  H04S2400/15

Abstract: In at least one embodiment, a system for providing a multi-beam constant beamwidth transducer (CBT) array is provided. The system includes an array of transducers and at least one controller. The array of transducers generates a first sound beam in a listening environment. The at least one controller is programmed to determine a first time delay for each transducer to virtually curve the array of transducers to provide a first beamwidth for the first sound beam and to determine a second time delay for each transducer to virtually rotate the array to steer the first sound beam one of off-axis and on-axis. The at least one controller is programmed to sum the first time delay for each transducer and the second time delay for each transducer to steer the first sound beam with the first beamwidth at a first angle from the array of transducers into the listening environment.

公开(公告)号：US20230336925A1

公开(公告)日：2023-10-19

申请号：US18337416

申请日：2023-06-19

Applicant: SHENZHEN SHOKZ CO., LTD.

Inventor： Le XIAO ,  Xin QI ,  Chenyang WU ,  Fengyun LIAO

IPC: H04R25/00 ,  H04R1/40 ,  H04R1/10

CPC classification number: H04R25/405 ,  H04R25/407 ,  H04R1/406 ,  H04R1/105 ,  H04R2201/403

Abstract: One or more embodiments of the present disclosure relates to hearing aids. A hearing aid includes a plurality of microphones configured to receive an initial sound signal and convert the initial sound signal into an electrical signal; a processor configured to process the electrical signal and generate a control signal; and a speaker configured to convert the control signal into a hearing aid sound signal. To process the electrical signal and generate the control signal, the processor is configured to: adjust a directivity of the initial sound signal received by the plurality of microphones, so that a sound intensity of a first sound signal from a direction of the speaker in the initial sound signal is always greater than or always less than a sound intensity of a second sound signal from other directions around.

公开(公告)号：US11745669B1

公开(公告)日：2023-09-05

申请号：US17883963

申请日：2022-08-09

Applicant: SOUTHERN AUDIO SERVICES, INC.

Inventor： Jeff Jordan

IPC: H04R25/00 ,  B60R11/02 ,  H04R1/02 ,  H04R1/40 ,  H04R1/18 ,  F21V33/00 ,  F21Y115/10

CPC classification number: B60R11/0217 ,  F21V33/0056 ,  H04R1/026 ,  H04R1/18 ,  H04R1/403 ,  F21Y2115/10 ,  H04R2201/025 ,  H04R2201/028 ,  H04R2201/403 ,  H04R2499/13

Abstract: A sound bar having a mounting assembly configured to pivotally secure the bar. The sound bar includes an elongated, at least partially hollow, housing. The housing has a body extending between two opposing ends. A speaker array is positioned in the body. At least one speaker is positioned in at least one end of the bar. The end speaker(s) are preferably bass speakers in fluid communication with the hollow housing. A grill is preferably positioned over at least one of the housing ends. The grill preferably has a center hub affixed to an outer rim by spokes defining open spaces in the grill to facilitate the emission of sound. A mount is attached to the sound bar to secure the bar to a structure while allowing the bar to pivot along its longitudinal axis. Preferably, the mount is secured to the center hub of the grill.

公开(公告)号：US11715482B2

公开(公告)日：2023-08-01

申请号：US16708176

申请日：2019-12-09

Applicant: eBay Inc.

Inventor： Dane Glasgow ,  David Ramadge ,  Matthew Bret MacLaurin ,  Justin Van Winkle ,  Corinne Elizabeth Sherman

IPC: H04R29/00 ,  G10L21/028 ,  G02B27/00 ,  G06F3/01 ,  G06F3/16 ,  G06V40/19 ,  G02B27/02 ,  G10L21/0364 ,  H04R1/40 ,  H04R3/00

CPC classification number: G10L21/028 ,  G02B27/0093 ,  G02B27/022 ,  G06F3/013 ,  G06F3/16 ,  G06V40/19 ,  G10L21/0364 ,  H04R29/005 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/403

Abstract: An apparatus and method for real-time audio processing employs a gaze detection sensor to detect a direction of a user's gaze and output a gaze signal corresponding to the detected direction of the user's gaze. A digital signal processing unit responds to a plurality of signals corresponding to a plurality of sounds received at the apparatus, and the determined direction of gaze to identify a signal of interest from the plurality of signals using the gaze signal. The signal of interest is processed for output to the user. In embodiments, a microphone array provides the plurality of signals. An imaging sensor may work with either the microphone array or the gaze detection sensor to identify the signal of interest.

公开(公告)号：US20230209260A1

公开(公告)日：2023-06-29

申请号：US18105979

申请日：2023-02-06

Applicant: Cerence Operating Company

Inventor： Tobias Herbig ,  Markus Buck ,  Meik Pfeffinger

IPC: H04R3/12 ,  H04M9/08 ,  H04R1/40 ,  H04R3/02 ,  H04R3/00 ,  G10L21/0208 ,  G10L25/84 ,  H04R27/00

CPC classification number: H04R3/12 ,  H04M9/082 ,  H04R1/406 ,  H04R3/02 ,  H04R3/005 ,  G10L21/0208 ,  G10L25/84 ,  H04R27/00 ,  H04R2201/403 ,  H04R2227/001 ,  H04R2227/009 ,  H04R2410/05 ,  H04R2420/01 ,  H04R2499/13 ,  H04R5/02

Abstract: An In-Car Communication (ICC) system supports the communication paths within a car by receiving the speech signals of a speaking passenger and playing it back for one or more listening passengers. Signal processing tasks are split into a microphone related part and into a loudspeaker related part. A sound processing system suitable for use in a vehicle having multiple acoustic zones includes a plurality of microphone In-Car Communication (Mic-ICC) instances coupled and a plurality of loudspeaker In-Car Communication (Ls-ICC) instances. The system further includes a dynamic audio routing matrix with a controller and coupled to the Mic-ICC instances, a mixer coupled to the plurality of Mic-ICC instances and a distributor coupled to the Ls-ICC instances.

公开(公告)号：US20190219659A1

公开(公告)日：2019-07-18

申请号：US16364294

申请日：2019-03-26

Applicant: NEC Corporation ,  NEC PLATFORMS, LTD.

Inventor： Akihiko SUGIYAMA ,  Ryoji MIYAHARA

IPC: G01S3/808 ,  H04R1/40 ,  G10L21/0272 ,  G10L25/51 ,  G10L21/0224

CPC classification number: G01S3/808 ,  G10L21/0224 ,  G10L21/0272 ,  G10L25/51 ,  G10L2021/02166 ,  H04R1/40 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/403 ,  H04R2430/03 ,  H04R2430/20 ,  H04R2499/11

Abstract: A wideband signal is enhanced or suppressed to the same extent at each frequency without increasing the size of an overall sensor array. To achieve this, there is provided a signal processing apparatus including a direction estimator that obtains a direction of arrival of a signal for signals received from a plurality of sensors and each containing a target signal and noise, a first gain calculator that calculates a first gain using the direction of arrival of the signal, an integrator that obtains an integrated signal by integrating the signals received from the plurality of sensors, and a multiplier that multiplies the first gain by the integrated signal.

公开(公告)号：US20190208314A1

公开(公告)日：2019-07-04

申请号：US16217996

申请日：2018-12-12

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Atsushi SAKAGUSHI

IPC: H04R1/40 ,  H04R3/04 ,  H04S7/00

CPC classification number: H04R1/403 ,  H04R3/04 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2430/25 ,  H04S7/302

Abstract: An area reproduction method includes converting a sound pressure distribution at each frequency of a reproduced sound from a sound pressure distribution in a frequency domain into a sound pressure distribution in a spatial frequency domain, the reproduced sound being realized on a control line including a reproduction line in which sound waves emitted from a speaker array including a plurality of speakers arranged intensify with each other and a non-reproduction line in which the sound waves weaken with each other; determining a spatial frequency for use in adjustment of the reproduced sound, in the sound pressure distribution in the spatial frequency domain, based on a positional relationship between the speaker array and the control line; and adjusting a sound pressure of the reproduced sound which is to be output by each of the plurality of speakers using the determined spatial frequency.

公开(公告)号：US20190208298A1

公开(公告)日：2019-07-04

申请号：US16234421

申请日：2018-12-27

Applicant: Harman International Industries, Incorporated

Inventor： Riley WINTON ,  David MOSSINGTON ,  Chris LUDWIG ,  Christopher Michael TRESTAIN

IPC: H04R1/02

CPC classification number: H04R1/026 ,  H04R1/32 ,  H04R3/12 ,  H04R2201/025 ,  H04R2201/403 ,  H04R2205/024

Abstract: The present disclosure relates to loudspeaker devices and configurations. In one embodiment, a loudspeaker includes a housing structure having multiple faces. A first face and second face of the housing are between first and second ends to arrange speaker configurations. The housing structure is configured to rotate to direct at least one of the first speaker configuration and the second speaker configuration for output of audio. In one embodiment, the housing structure is an elongated triangular structure. Loudspeaker configurations can include one or more elements to rotate the housing structure to direct at least one of the first speaker configuration and the second speaker configuration for output of audio. Loudspeaker configurations may also include a controller to operate at least one of the first speaker configuration and the second speaker configuration for output of audio based on position of the housing structure.