公开(公告)号：US5339281A

公开(公告)日：1994-08-16

申请号：US102466

申请日：1993-08-05

Applicant: Patrenahalli M. Narendra ,  Russell D. Braunling ,  William J. Wegerer, II ,  Jonathan C. Werder

Inventor： Patrenahalli M. Narendra ,  Russell D. Braunling ,  William J. Wegerer, II ,  Jonathan C. Werder

IPC: G01S3/801 ,  G01S3/808 ,  G01S5/20 ,  G01V1/16 ,  H04B1/59 ,  G01S3/80

CPC classification number: G01S3/808 ,  G01S3/801 ,  G01S5/20 ,  G01V1/16 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/405 ,  H04R2430/20

Abstract: A sensor for detecting acoustic energy emitted by a target is disclosed. The sensor comprises a housing including a plurality of transducers for receiving acoustic energy. The transducers are randomly deployed within a predetermined area around the housing, forming an array and a self-survey technique is utilized to determine the positions of the sensors. Beamforming techniques are utilized to analyze the acoustic energy detected by the transducers to provide the azimuth of a target and a class estimate of the target. A plurality of sensors may be utilized to provide target location, course and velocity.

Abstract translation: 公开了一种用于检测目标发射的声能的传感器。 传感器包括壳体，其包括用于接收声能的多个换能器。 换能器被随机地布置在围绕壳体的预定区域内，形成阵列并且使用自我调查技术来确定传感器的位置。 波束成形技术用于分析由换能器检测的声能，以提供目标的方位角和目标的类估计。 可以使用多个传感器来提供目标位置，航向和速度。

公开(公告)号：US11832053B2

公开(公告)日：2023-11-28

申请号：US17656929

申请日：2022-03-29

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: H04R1/02 ,  H04R1/40 ,  H04R31/00

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：US20190174231A1

公开(公告)日：2019-06-06

申请号：US16268741

申请日：2019-02-06

Applicant: HM Electronics, Inc.

Inventor： Charles Butten ,  Karl Knoblock ,  Robert Snyder

IPC: H04R3/14 ,  H04R19/04 ,  H04R1/08 ,  H04R1/10 ,  H04R3/04 ,  H04R1/40

CPC classification number: H04R3/14 ,  H04R1/083 ,  H04R1/1008 ,  H04R1/1033 ,  H04R1/105 ,  H04R1/406 ,  H04R3/005 ,  H04R3/04 ,  H04R19/04 ,  H04R2201/003 ,  H04R2201/107 ,  H04R2201/403 ,  H04R2201/405

Abstract: An apparatus for reducing cross-talk between transmitted audio signals and received audio in a headset. The headset includes one or more of a set of earphones, a headset frame, a microphone boom with an array of MEMS microphone configured to isolate the earphone audio from the microphone audio, a VOX circuit, low crosstalk cable(s), and/or other components. Sets of microphones may be enabled and/or disabled to reduce cross-talk between received audio signals and transmitted audio signals. The VOX circuit is configured to reduce cross-talk between received audio signals and transmitted audio signals.

公开(公告)号：US20190045300A1

公开(公告)日：2019-02-07

申请号：US16051333

申请日：2018-07-31

Applicant: Eaton Intelligent Power Limited

Inventor： Nam Chin Cho ,  Parth Joshi ,  Brad Edward Paine ,  Kenneth Dale Walma, Jr. ,  William T. Cook

IPC: H04R3/00 ,  F21K9/20 ,  G10L15/22 ,  G06F3/16 ,  H04R1/22 ,  F21V33/00 ,  G10K11/175

CPC classification number: H04R3/005 ,  F21K9/20 ,  F21V33/0056 ,  G06F3/165 ,  G06F3/167 ,  G10K11/175 ,  G10K11/1785 ,  G10K2210/12 ,  G10L15/22 ,  G10L25/51 ,  H04R1/222 ,  H04R29/002 ,  H04R29/005 ,  H04R2201/40 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2203/12 ,  H04R2410/01 ,  H04R2430/20 ,  H04R2430/21 ,  H04R2430/25

Abstract: A lighting system includes a first lighting fixture that includes a first microphone and a first transmitter. The first transmitter is configured to transmit a first digital audio stream generated based on a sound. The lighting system further includes a second lighting fixture that includes a second microphone and a second transmitter. The second transmitter is configured to transmit a second digital audio stream generated based on the sound, where the sound is received by the first microphone and by the second microphone. The lighting system also includes a central processor that can process the first digital audio stream and the second digital audio stream to identify the sound.

公开(公告)号：US10075801B2

公开(公告)日：2018-09-11

申请号：US14413024

申请日：2013-04-19

Applicant: SONY CORPORATION

Inventor： Yoichiro Sako ,  Kohei Asada ,  Kazuyuki Sakoda ,  Katsuhisa Aratani ,  Mitsuru Takehara ,  Takatoshi Nakamura ,  Kazuhiro Watanabe ,  Akira Tange ,  Hiroyuki Hanaya ,  Yuki Koga ,  Tomoya Onuma

IPC: H04R3/00 ,  H04R5/02 ,  H04S7/00 ,  H04R1/40 ,  H04R3/12 ,  H04R5/027 ,  G10L21/0216

CPC classification number: H04S7/302 ,  G10L2021/02166 ,  H04R1/403 ,  H04R1/406 ,  H04R3/005 ,  H04R3/12 ,  H04R5/027 ,  H04R2201/405 ,  H04R2420/07 ,  H04R2430/23 ,  H04S2420/13

Abstract: An information processing system including a recognizing unit configured to recognize a given target on the basis of signals detected by a plurality of sensors arranged around a specific user, an identifying unit configured to identify the given target recognized by the recognizing unit, an estimating unit configured to estimate a position of the specific user in accordance with the a signal detected by any one of the plurality of sensors, and a signal processing unit configured to process signals acquired from sensors around the given target identified by the identifying unit in a manner that, when output from a plurality of actuators arranged around the specific user, the signals are localized near the position of the specific user estimated by the estimating unit.

公开(公告)号：US10075793B2

公开(公告)日：2018-09-11

申请号：US15681937

申请日：2017-08-21

Applicant: Sonos, Inc.

Inventor： Brendan Welch ,  Romi Kadri ,  Jonathon Reilly

IPC: H04R29/00 ,  H04R3/00 ,  G01S3/803 ,  G01S3/80 ,  H04R1/40 ,  H04R3/12 ,  H04R5/04 ,  H04S7/00

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.

公开(公告)号：US09955263B2

公开(公告)日：2018-04-24

申请号：US14956005

申请日：2015-12-01

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Anu Hannele Huttunen ,  Jorma Juhani Makinen

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

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：US20180070173A1

公开(公告)日：2018-03-08

申请号：US15800276

申请日：2017-11-01

Applicant: INSIGHT ACOUSTIC LTD.

Inventor： Vladimir Sherman

IPC: H04R3/00 ,  H04R3/12 ,  G06F3/01 ,  G06F3/16

CPC classification number: H04R3/005 ,  G01S3/8006 ,  G02C11/06 ,  G02C11/10 ,  G06F3/013 ,  G06F3/165 ,  G10K11/16 ,  G10K11/341 ,  G10L2021/02166 ,  H04R1/028 ,  H04R1/1083 ,  H04R1/406 ,  H04R3/12 ,  H04R5/033 ,  H04R25/407 ,  H04R25/43 ,  H04R29/005 ,  H04R2201/405 ,  H04R2225/43 ,  H04R2410/01 ,  H04R2430/21 ,  H04R2499/15

Abstract: The present invention includes methods, circuits, devices, systems and associated computer executable code for acquiring, processing and rendering acoustic signals. According to some embodiments, one or more direction specific audio signals may be generated using a microphone array comprising two or more microphones and an audio stream generator. The audio stream generator may receive a direction parameter from an optical tracking system. There may be provided an audio rendering system adapted to normalize and/or balance acoustic signals acquired from a soundscape.

公开(公告)号：US09851938B2

公开(公告)日：2017-12-26

申请号：US15139238

申请日：2016-04-26

Applicant: Analog Devices, Inc

Inventor： Martin Kessler

IPC: H04R3/00 ,  G06F3/16

CPC classification number: G06F3/165 ,  H04R3/005 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/21 ,  H04R2499/13

Abstract: Disclosed herein are microphone arrays for directional reception, along with related system, devices, and techniques. For example, a four-microphone array for directional signal reception may include first, second, and third microphones arranged such that projections of the first, second, and third microphones in a plane provide corners of a triangle in the plane. In some embodiments, a fourth microphone may be arranged such that a projection of the fourth microphone in the plane is disposed in an interior of the triangle. In other embodiments, the fourth microphone may be arranged such that the projection of the fourth microphone in the plane is disposed outside the interior of the triangle, and a distance between the first microphone and the second microphone is different from a distance between the first microphone and the third microphone.

公开(公告)号：US20170353796A1

公开(公告)日：2017-12-07

申请号：US15174086

申请日：2016-06-06

Applicant: Bose Corporation

Inventor： Nathan Jeffery ,  Roman N. Litovsky

IPC: H04R3/12 ,  H04R1/10 ,  H04R1/34 ,  H04R1/40

CPC classification number: H04R3/12 ,  H04R1/1083 ,  H04R1/1091 ,  H04R1/20 ,  H04R1/345 ,  H04R1/403 ,  H04R5/02 ,  H04R2201/10 ,  H04R2201/405

Abstract: An acoustic device that is adapted to be worn on the body of a user, with a first acoustic transducer and a second acoustic transducer, where the first transducer is closer to the expected location of a first ear of the user than is the second transducer, a third acoustic transducer and a fourth acoustic transducer, where the third transducer is closer to the expected location of a second ear of the user than is the fourth transducer, and a controller that is adapted to independently control the phase and frequency response of the first, second, third and fourth transducers.