公开(公告)号：US12067964B2

公开(公告)日：2024-08-20

申请号：US17600185

申请日：2020-03-30

Applicant: Bose Corporation

Inventor： Yashar Motedayen Aval ,  Siamak Farahbakhsh ,  Dennis D. Klug

IPC: G10K11/178 ,  B60Q9/00

CPC classification number: G10K11/17854 ,  G10K11/17823 ,  G10K11/17825 ,  G10K11/17881 ,  B60Q9/00 ,  G10K2210/121 ,  G10K2210/12821 ,  G10K2210/3011 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3028

Abstract: Noise cancellation systems and methods are provided that receive a reference signal representative of a noise to be reduced and provide a noise cancellation signal based upon the reference signal. Some examples include a feedback signal representative of a residual noise in the environment. At least one of the reference signal, the noise cancellation signal, or the feedback signal is filtered to remove components based upon a rotational rate of a rotating equipment associated with the environment, such as an engine of a vehicle. Accordingly, the noise cancellation system may not interfere with sounds related to the engine.

公开(公告)号：US20230392822A1

公开(公告)日：2023-12-07

申请号：US17805266

申请日：2022-06-03

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Phillip V. Mann ,  Tyler Jandt ,  Sandra J. Shirk/Heath ,  Tyler Smith

IPC: F24F13/24 ,  G10K11/162 ,  G10K11/178

CPC classification number: F24F13/24 ,  G10K11/162 ,  G10K11/178 ,  G10K2210/121 ,  F24F2013/242

Abstract: An air moving device (AMD) includes a housing that dampens noise and routes airflow. The AMD housing includes a focal-bearing surface that has an associated focal point. The focal-bearing surface routes airflow through the AMD housing and reflects and concentrates noise to the focal point. The AMD housing further includes a noise dampening structure at the focal point to reduce, absorb, and/or dampen the concentrated noise. Because the noise is concentrated, a relatively smaller size noise dampening structure may effectively or adequately reduce or dampen AMD noise. The smaller size noise dampening structure relatively reduces airflow impedance. As such, AMD housing may provide for both reduced AMD noise and relatively reduced airflow impedance therein and/or therefrom.

公开(公告)号：US11676570B2

公开(公告)日：2023-06-13

申请号：US17667668

申请日：2022-02-09

Applicant: The Boeing Company

Inventor： Steven F. Griffin

IPC: G10K11/178 ,  G06V20/59 ,  G06F3/01 ,  H04R3/00 ,  H04R3/12

CPC classification number: G10K11/17881 ,  G06F3/012 ,  G06V20/593 ,  G10K11/17823 ,  G10K11/17854 ,  G10K11/17857 ,  G10K11/17883 ,  H04R3/005 ,  H04R3/12 ,  G10K2210/121 ,  G10K2210/1281 ,  G10K2210/3046 ,  H04R2499/13

Abstract: A noise cancellation system for cancelling sounds within a vehicle. The noise cancellation system includes microphones, a camera, a controller, and speakers. The microphones are disposed adjacent to occupant locations, and configured to generate microphone signals representative of noise sounds and cancellation audio sounds. The camera is configured to generate a video signal that captures head configurations of the occupants. The controller is configured to receive rotor control signals, calculate hearing locations based on tracking data of the head configurations of the occupants, and generate a speaker signals based on the hearing locations, the microphone signals, and the rotor control signals. The speakers are configured to generate the cancellation audio sounds. The cancellation audio sounds attenuate the noise sounds.

公开(公告)号：US20190213992A1

公开(公告)日：2019-07-11

申请号：US16331890

申请日：2016-12-29

Applicant: Halliburton Energy Services, Inc.

Inventor： Bryan John LEWIS ,  Kenneth R. COFFMAN

IPC: G10K11/178

CPC classification number: G10K11/17883 ,  G10K2210/121 ,  G10K2210/129

Abstract: A method for noise attenuation includes comparing a frequency of noise generated by a plurality of noise sources with a plurality of frequencies associated with a pre-determined noise spectrum and stored in a computer system, identifying one or more noise sources that generate the noise based on the comparison of the frequency of the noise and the plurality of frequencies stored in the computer system; generating anti-noise corresponding to the noise; and outputting the anti-noise using one or more noise mitigation devices associated with the one or more noise sources.

公开(公告)号：US20180166060A1

公开(公告)日：2018-06-14

申请号：US15738272

申请日：2016-07-04

Applicant: Norgren Limited

Inventor： Mark Richard Grubb

IPC: G10K11/178 ,  G10K11/16 ,  F04C14/24 ,  F04C14/28 ,  F04C29/06 ,  G05D7/06

CPC classification number: G10K11/178 ,  F04C14/24 ,  F04C14/28 ,  F04C29/06 ,  F04C2270/135 ,  F04C2270/145 ,  F04C2270/80 ,  F04C2270/86 ,  F16L55/0333 ,  G05D7/0635 ,  G10K11/161 ,  G10K2210/109 ,  G10K2210/121

Abstract: An electronics for active cancellation of a pulsating flow with a source noise reference. The electronics includes a signal processor configured to receive a noise source signal and a flow signal The signal processor is also configured to generate a cancelling signal based on the noise source signal and the flow signal. A controller is communicatively coupled to the signal processor and configured to determine a flow rate control signal for controlling the flow rate of the pulsating flow A signal generator coupled to the signal processor and the controller is configured to receive the flow rate control signal, generate a valve signal based on the flow rate control signal and the cancelling signal, and provide the valve signal to a valve to control the flow rate and attenuate the one or more pulses of the pulsating flow.

公开(公告)号：US20170365246A1

公开(公告)日：2017-12-21

申请号：US15544485

申请日：2015-03-24

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Atsuyoshi YANO

IPC: G10K11/178

CPC classification number: G10K11/178 ,  G10K11/17883 ,  G10K2210/121 ,  G10K2210/1282 ,  G10K2210/129 ,  G10K2210/3044

Abstract: There are provided a control signal generation unit 120 that generates a control signal on the basis of a cosine wave signal and a sine wave signal whose frequencies are a control frequency identified according to a vibration noise source, and a correction value update unit that updates a correction value to a value for decreasing signal power of an error signal on the basis of a relationship between increase and decrease of the signal power of the error signal obtained from remaining vibration noise that remains after interference sound that is generated on the basis of the control signal and propagates through a secondary route interferes with vibration noise generated from the vibration noise source and increase and decrease of the correction value used for correction of the control frequency.

公开(公告)号：US09767785B2

公开(公告)日：2017-09-19

申请号：US14744370

申请日：2015-06-19

Applicant: ICON Health & Fitness, Inc.

Inventor： Darren C. Ashby ,  Eric Watterson

IPC: A63B22/00 ,  G10K11/178 ,  A63B22/02 ,  A63B24/00 ,  A63B71/06

CPC classification number: G10K11/178 ,  A63B22/0242 ,  A63B24/0062 ,  A63B24/0087 ,  A63B2024/0068 ,  A63B2024/0071 ,  A63B2024/009 ,  A63B2071/0625 ,  A63B2071/063 ,  A63B2071/065 ,  A63B2230/06 ,  A63B2230/75 ,  G10K2210/105 ,  G10K2210/121

Abstract: A treadmill having a running deck comprising a motor arranged to drive movement of a tread belt, a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions are executable by the processor to determine an anti-phase waveform based on waveform attributes of a noise emitted from the treadmill and to cause a sound of the anti-phase waveform to be emitted into a surrounding environment.

公开(公告)号：US09646597B1

公开(公告)日：2017-05-09

申请号：US14977455

申请日：2015-12-21

Applicant: Amazon Technologies, Inc.

Inventor： Brian C. Beckman ,  Jack Erdozain, Jr. ,  Fabian Hensel ,  David Lindskog ,  Sheridan Leigh Martin

IPC: G01C23/00 ,  G10K11/178 ,  B64C39/02 ,  B64D47/00

CPC classification number: G10K11/178 ,  B64C39/024 ,  B64C2201/027 ,  B64C2201/128 ,  B64C2201/141 ,  B64C2220/00 ,  B64D47/00 ,  G10H2220/355 ,  G10H2240/181 ,  G10H2250/315 ,  G10H2250/371 ,  G10K11/175 ,  G10K2210/121 ,  G10K2210/1281

Abstract: An unmanned aerial vehicle (UAV) may emit masking sounds during operation of the UAV to mask other sounds generated by the UAV during operation. The UAV may be used to deliver items to a residence or other location associated with a customer. The UAV may emit sounds that mask the conventional sounds generated by the propellers and/or motors to cause the UAV to emit sounds that are pleasing to bystanders or do not annoy the bystanders. The UAV may emit sounds using speakers or other sound generating devices, such as fins, reeds, whistles, or other devices which may cause sound to be emitted from the UAV. Noise canceling algorithms may be used to cancel at least some of the conventional noise generated by operation of the UAV using inverted sounds, while additional sound may be emitted by the UAV, which may not be subject to noise cancelation.

公开(公告)号：US20170110108A1

公开(公告)日：2017-04-20

申请号：US15294278

申请日：2016-10-14

Applicant: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH

Inventor： Markus CHRISTOPH ,  Nikos ZAFEIROPOULOS

IPC: G10K11/178

CPC classification number: G10K11/178 ,  G10K11/17879 ,  G10K11/17883 ,  G10K2210/121 ,  G10K2210/1282 ,  G10K2210/12822 ,  G10K2210/129 ,  G10K2210/3011 ,  G10K2210/3022 ,  G10K2210/3028 ,  G10K2210/3045 ,  G10K2210/501 ,  G10K2210/512

Abstract: An exemplary engine noise control includes directly picking up engine noise from an engine of a vehicle at a pick-up position to generate a sense signal representative of the engine noise, and active noise control filtering to generate a filtered sense signal from the sense signal. The control further includes converting the filtered sense signal from the active noise control filtering into anti-noise and radiating the anti-noise to a listening position in an interior of the vehicle. The filtered sense signal is configured so that the anti-noise reduces the engine noise at the listening position.

公开(公告)号：US08976975B2

公开(公告)日：2015-03-10

申请号：US13545669

申请日：2012-07-10

Applicant: Richard Lynn Loud

Inventor： Richard Lynn Loud

IPC: G10K11/16 ,  H03B29/00 ,  H04R3/02

CPC classification number: H03G3/32 ,  G10K11/178 ,  G10K2210/121 ,  G10K2210/3015 ,  G10K2210/3056

Abstract: Various embodiments of the invention include systems, computer program products, and related methods for managing power plant acoustics. In various embodiments, a system is disclosed including at least one computing device configured to perform the following: determine a difference between an A-weighted sound decibel (dBA) level and a C-weighted sound decibel (dBC) level (Δ dBC-dBA) from a power plant system within a sound spectrum; compare the Δ dBC-dBA with a predetermined threshold difference for the sound spectrum; and provide instructions to increase the dBA level of a balancing sound in the spectrum proximate the power plant system in response to determining the Δ dBC-dBA exceeds the predetermined threshold difference.

Abstract translation: 本发明的各种实施例包括用于管理电厂声学的系统，计算机程序产品和相关方法。 在各种实施例中，公开了一种系统，其包括被配置为执行以下操作的至少一个计算设备：确定A加权声分贝（dBA）级别和C加权声分贝（dBC）级别（＆Dgr; dBC- dBA）从声光谱中的发电厂系统; 比较＆Dgr dBC-dBA，具有用于声谱的预定阈值差; 并提供指令，以响应于确定＆Dgr而提供在靠近发电厂系统的频谱中的平衡声音的dBA水平; dBC-dBA超过预定阈值差。