公开(公告)号：US20200074976A1

公开(公告)日：2020-03-05

申请号：US16120171

申请日：2018-08-31

Applicant: Bose Corporation

Inventor： Wade Torres ,  Eric Bernstein ,  Ankita Jain

IPC: G10K11/178

Abstract: A noise-cancellation system includes a noise-cancellation filter configured to generate a noise-cancellation signal based on a noise signal received from a noise sensor; an actuator disposed at a first location within a predefined volume and configured to receive the noise-cancellation signal and to transduce a noise-cancellation audio signal within the predefined volume; a reference sensor disposed at a second location within the predefined volume and to output a reference sensor signal, the reference sensor signal being representative of an undesired noise at the second location; a filter configured to filter the noise-cancellation signal and the reference sensor signal to output a filter output signal, the filter output signal representing an estimate of the undesired nose at a third location remote from the first location and the second location; and an adjustment module configured to adjust the noise-cancellation filter, based on the filter output signal, such that the noise-cancellation audio signal destructively interferes with the undesired noise at the third location.

公开(公告)号：US09508336B1

公开(公告)日：2016-11-29

申请号：US14749823

申请日：2015-06-25

Applicant: Bose Corporation

Inventor： Wade Torres

IPC: G10K11/16 ,  G10K11/178

CPC classification number: G10K11/178 ,  G10K11/1783 ,  G10K11/17857 ,  G10K2210/1282 ,  G10K2210/3016 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3215 ,  G10K2210/3219 ,  G10K2210/3221 ,  G10K2210/3229

Abstract: A noise cancellation method and system comprises a system controller that produces a command signal in response to a signal from at least one microphone detecting sound in an area. The system controller includes an arrayed speaker controller for producing a driver signal for each speaker in response to the command signal such that combined sound emitted by the speakers in response to the driver signals produces a substantially uniform sound pressure field adapted to attenuate a noise field corresponding to the sound detected by the at least one microphone. The system controller includes an in-phase speaker controller for producing a common in-phase driver signal for all speakers in response to the command signal and a signal director module for proportioning the command signal between the arrayed and in-phase speaker controllers in response to a magnitude of voltage associated with driving the speakers in accordance with the command signal.

Abstract translation: 噪声消除方法和系统包括系统控制器，其响应于来自至少一个麦克风的信号产生指令信号，该信号检测区域中的声音。 系统控制器包括阵列扬声器控制器，用于响应于命令信号为每个扬声器产生驾驶员信号，使得响应于驾驶员信号的扬声器发出的组合声音产生基本上均匀的声压场，其适于衰减相应的噪声场 对于由至少一个麦克风检测到的声音。 系统控制器包括同相扬声器控制器，用于响应于命令信号产生用于所有扬声器的公共同相驱动器信号;以及信号引导器模块，用于在阵列和同相扬声器控制器之间对命令信号进行比例，以响应于 与根据命令信号驱动扬声器相关联的电压的大小。

公开(公告)号：US09424828B2

公开(公告)日：2016-08-23

申请号：US14449325

申请日：2014-08-01

Applicant: Bose Corporation

Inventor： David Warkentin ,  Ryan Struzik ,  Wade Torres ,  Paul T. Bender ,  David Easterbrook

IPC: G10K11/16 ,  G10K11/178 ,  H04R1/10

CPC classification number: G10K11/1786 ,  G10K11/178 ,  G10K11/17857 ,  G10K11/17873 ,  G10K2210/1282 ,  G10K2210/30351 ,  G10K2210/3055 ,  G10K2210/3221 ,  G10K2210/3226 ,  H04R1/1083 ,  H04R2227/001 ,  H04R2410/01 ,  H04R2499/13

Abstract: A method and system for attenuating noise comprises identifying a location in an area at which sound emitted from one or more speakers has acoustic characteristics that are substantially similar in measure to corresponding acoustic characteristics of the emitted sound at a location approximated to be near an ear of an occupant of the area. A microphone, which may be a virtual microphone, is disposed at the identified location. The microphone detects sound at the identified location. In response to the sound detected by the microphone, the one or more speakers emit a noise-canceling audio signal adapted to attenuate one or more frequencies in the sound detected by the microphone.

Abstract translation: 用于衰减噪声的方法和系统包括识别在一个区域中的位置，在该区域中，从一个或多个扬声器发出的声音的声学特性基本上类似于在近似于靠近耳朵的耳朵处的发射声音的相应声学特性 该地区的乘客。 可以是虚拟麦克风的麦克风被布置在所识别的位置。 麦克风在识别的位置检测声音。 响应于由麦克风检测到的声音，一个或多个扬声器发出适于衰减由麦克风检测到的声音中的一个或多个频率的噪声消除音频信号。