公开(公告)号：US12087263B1

公开(公告)日：2024-09-10

申请号：US18370964

申请日：2023-09-21

Applicant: John L. Butler ,  Frank D. Fratantonio

Inventor： John L. Butler ,  Frank D. Fratantonio

IPC: G10K11/172 ,  G10K9/122 ,  G10K11/00 ,  H04R1/44 ,  H04R3/00

CPC classification number: G10K11/172 ,  G10K9/122 ,  G10K11/008 ,  H04R1/44 ,  H04R3/002 ,  G10K2200/11 ,  H04R2201/403

Abstract: An electro mechanical piezoelectric under water sound acoustic projector transducer which does not interfere with adjacent hydrophone reception and is mainly controlled at the electrical input is presented here. The method recognizes that the main interference with the adjacent hydrophone is mostly due to the resonance of the projector when not transmitting and is excited by the incoming acoustic wave reflected from the target signal originally initiated by the projector. Means for accomplishing this are shown to be simple to implement on current or new projector systems. The process uses an electrical resistor that absorbs the incoming acoustic wave as if the resistor were a mechanical damper and the projector transducer were acoustically transparent.

公开(公告)号：US12052393B2

公开(公告)日：2024-07-30

申请号：US18454890

申请日：2023-08-24

Applicant: ClearOne, Inc.

Inventor： Ashutosh Pandey ,  Darrin T. Thurston ,  David K. Lambert ,  Tracy A. Bathurst

IPC: H04M9/08 ,  G10L21/0208 ,  G10L21/0216 ,  G10L21/0232 ,  G10L21/0264 ,  H04M3/56 ,  H04R1/40 ,  H04R3/00 ,  H04R29/00

CPC classification number: H04M9/082 ,  G10L21/0208 ,  G10L21/0232 ,  G10L21/0264 ,  H04M3/568 ,  H04R1/406 ,  H04R3/005 ,  H04R29/007 ,  G10L2021/02082 ,  G10L2021/02166 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2430/20 ,  H04R2430/23 ,  H04R2499/11

Abstract: This disclosure describes a conferencing device with beamforming and echo cancellation that includes: a microphone array that further comprises a plurality of microphones oriented to develop a corresponding plurality of microphone signals; a processor configured to execute the following steps: (1) performing a beamforming operation; (2) performing an acoustic echo cancellation operation; (3) post processing; (4) selecting one or more of the post processed signals for transmission to the far end where a signal selector uses the far end signal as information to inhibit the signal selector from changing the selection of the post processed signals while only the far end signal is active.

公开(公告)号：US12047756B1

公开(公告)日：2024-07-23

申请号：US17722680

申请日：2022-04-18

Applicant: Amazon Technologies, Inc.

Inventor： Samuel Henry Chang ,  Wai Chung Chu

IPC: H04R3/00 ,  H04R1/40

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/403 ,  H04R2430/20

Abstract: A system efficiently selects at least one device from multiple devices based on received audio signals. In some instances, the system receives audio signals from devices that each comprise at least one microphone. A respective audio signal of the audio signals includes a representation of a sound originating from a location. The system then determines a device to be used to respond to the sound. In some instances, the system analyzes times in which the received audio signals that represent the sound are generated and/or volumes of the sound as represented by the received audio signals. The system can then select the device based on the analysis.

公开(公告)号：US20240187789A1

公开(公告)日：2024-06-06

申请号：US18504896

申请日：2023-11-08

Applicant: Sonos, Inc.

Inventor： Mike Chamness ,  Aurelio Rafael Ramos ,  Timothy Sheen ,  Hilmar Lehnert

IPC: H04R3/04 ,  H04R1/40 ,  H04S1/00 ,  H04S3/00

CPC classification number: H04R3/04 ,  H04S1/002 ,  H04R1/403 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2205/024 ,  H04R2227/005 ,  H04S3/002

Abstract: Example techniques relate to audio generation in a media playback system. Based on one or more first functions and first characteristics of an area, the system may generate first audio that includes a first audio signal and a second audio signal. The system provides the first audio signal to at least one first audio driver and the second audio signal to at least one second audio driver, thereby causing a first playback device and a second playback device to play back the first audio synchronously. The system receives second characteristics of the area and based on one or more second functions and the second characteristics, generates second audio comprising a third audio signal and a fourth audio signal. The system provides the third audio signal to the at least one first audio driver and the fourth audio signal to the at least one second audio driver.

公开(公告)号：US20240137678A1

公开(公告)日：2024-04-25

申请号：US18520995

申请日：2023-11-28

Applicant: MSG Entertainment Group, LLC ,  Holoplot GmbH

Inventor： Erik Hockman ,  Alex Luthwaite ,  Emad Yacoub Hanna

IPC: H04R1/02 ,  G06F3/147 ,  H04R1/40 ,  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：US11818561B1

公开(公告)日：2023-11-14

申请号：US17984134

申请日：2022-11-09

Applicant: Apple Inc.

Inventor： Ismael H. Nawfal ,  Joshua D. Atkins ,  Stephen J. Nimick ,  Guy C. Nicholson ,  Jason M. Harlow

IPC: H04R5/04 ,  H04R5/027 ,  H04R5/033 ,  H04R1/10

CPC classification number: H04R5/04 ,  H04R5/027 ,  H04R1/1041 ,  H04R5/033 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2430/01 ,  H04R2460/01 ,  H04R2460/05

Abstract: Digital audio signal processing techniques used to provide an acoustic transparency function in a pair of headphones. A number of transparency filters can be computed at once, using optimization techniques or using a closed form solution, that are based on multiple re-seatings of the headphones and that are as a result robust for a population of wearers. In another embodiment, a transparency hearing filter of a headphone is computed by an adaptive system that takes into consideration the changing acoustic to electrical path between an earpiece speaker and an interior microphone of that headphone while worn by a user. Other embodiments are also described and claimed.

公开(公告)号：US20180359560A1

公开(公告)日：2018-12-13

申请号：US15980942

申请日：2018-05-16

Applicant: NXP B.V.

Inventor： Bruno Gabriel Paul G. Defraene ,  Cyril Guillaumé ,  Wouter Joos Tirry

IPC: H04R1/40 ,  G10K11/178 ,  H04R3/00 ,  H04R5/027

CPC classification number: H04R1/406 ,  G10K11/17854 ,  G10K2210/1082 ,  G10L21/0208 ,  G10L25/84 ,  G10L2021/02166 ,  H04R3/005 ,  H04R5/027 ,  H04R2201/403 ,  H04R2430/23

Abstract: A signal processor comprising a plurality of microphone-terminals configured to receive a respective plurality of microphone-signals. A plurality of beamforming-modules, each respective beamforming-module configured to receive and process input-signalling representative of some or all of the plurality of microphone-signals to provide a respective speech-reference-signal, a respective noise-reference-signal, and a beamformer output signal based on focusing a beam into a respective angular direction. A beam-selection-module comprising a plurality of speech-leakage-estimation-modules, each respective speech-leakage-estimation-module configured to receive the speech-reference-signal and the noise-reference-signal from a respective one of the plurality of beamforming-modules; and provide a respective speech-leakage-estimation-signal based on a similarity measure of the received speech-reference-signal with respect to the received noise-reference-signal. The beam-selection-module further comprises a beam-selection-controller configured to provide a control-signal based on the speech-leakage-estimation-signals.

公开(公告)号：US20180353152A1

公开(公告)日：2018-12-13

申请号：US16003587

申请日：2018-06-08

Applicant: Ann and Robert H. Lurie Children's Hospital of Chicago

Inventor： Jagjit Singh Teji

IPC: A61B7/02 ,  G08B21/18 ,  H04R1/40 ,  H04R1/08 ,  H04R3/04 ,  A61B5/00

CPC classification number: A61B7/026 ,  A61B5/7405 ,  A61B5/742 ,  A61B5/746 ,  A61B2503/04 ,  A61B2503/06 ,  G08B21/182 ,  H04R1/083 ,  H04R1/406 ,  H04R3/04 ,  H04R2201/403

Abstract: A sound detection system for detecting heart or lung sounds is disclosed, comprising a sound detection apparatus, a signal processor, and an indicator. A representative sound detection apparatus includes an optional flexible material layer; and an array of a plurality of sound sensors to generate a plurality of sound signals, and a signal output interface. A signal processor includes a memory storing reference data; and a processor adapted to receive the plurality of sound signals, to compare the received plurality of sound signals with the reference data, and when a variance or difference between one or more of the received plurality of sound signals and the reference data is greater than a predetermined threshold, to generate a corresponding command signal to the indicator to provide a warning signal indication.

公开(公告)号：US20180324551A1

公开(公告)日：2018-11-08

申请号：US15588513

申请日：2017-05-05

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Ellis A. Pinder

IPC: H04W4/02 ,  H04B1/401 ,  H04R1/40 ,  H04R3/00 ,  H04R1/02 ,  H04R3/04 ,  H03G3/02

CPC classification number: H04W4/026 ,  A41D1/002 ,  A61B5/1113 ,  A61B5/6804 ,  G06F1/163 ,  H03G3/02 ,  H04B1/401 ,  H04R1/028 ,  H04R1/406 ,  H04R3/005 ,  H04R3/04 ,  H04R2201/023 ,  H04R2201/403 ,  H04W4/023 ,  H04W4/025 ,  H04W4/029 ,  H04W4/80 ,  H04W88/06

Abstract: Systems and methods locating and operating a portable device mounted to a garment. One method includes receiving, with an electronic processor, a signal from a communication line of a plurality of communication lines integrated within the garment. The method also includes determining, with the electronic processor, a location, on the garment, of the portable device based on the signal. The method also includes determining, with the electronic processor, an operational mode for the portable device based on the location. The method also includes adjusting, with the electronic processor, operation of the portable device based on the operational mode.

公开(公告)号：US20180288509A1

公开(公告)日：2018-10-04

申请号：US15853735

申请日：2017-12-23

Applicant: NINGBO TONWEL AUDIO EQUIPMENTS CO., LTD.

Inventor： Jun YAN ,  Yixian XU ,  Yi ZHANG ,  Zhiqin WANG ,  Bingyao YAN

IPC: H04R1/02 ,  H04R3/00

CPC classification number: H04R1/025 ,  H04R1/026 ,  H04R1/403 ,  H04R3/00 ,  H04R27/00 ,  H04R2201/403

Abstract: Embodiments of the disclosure disclose a connected speaker device having a first speaker, a first plate mounted on the first speaker, a second speaker, and a second plate which is mounted on the first speaker and connected to at least a part of the first plate. A distance between the first, speaker and the second speaker is equal to a sum of thicknesses of the first plate and the second plate. The disclosed connected speaker device effectively reduces the distance between adjacent speakers and ensures reliability of the connection between the speakers at the same time.