公开(公告)号：US20180190260A1

公开(公告)日：2018-07-05

申请号：US15861339

申请日：2018-01-03

Applicant: Harman Becker Automotive Systems GmbH

Inventor： Markus E. CHRISTOPH

IPC: G10K11/178 ,  H04R1/10

CPC classification number: G10K11/17854 ,  G10K2210/111 ,  G10K2210/3028 ,  G10K2210/3215 ,  H04R1/1083 ,  H04R2410/01 ,  H04R2410/05 ,  H04R2460/01

Abstract: An active noise reducing earphone includes a rigid cup-like shell having an inner surface and an outer surface is provided. The inner surface encompasses a cavity with an opening, and a microphone arrangement is configured to pick up sound with at least one steerable beam-like directivity characteristic, and to provide a first electrical signal that represents the picked-up sound. The earphone further includes an active noise control filter configured to provide, based on the first electrical signal, a second electrical signal, and a speaker disposed in the opening of the cavity and configured to generate sound from the second electrical signal. The active noise control filter has a transfer characteristic that is configured so that noise that travels through the shell from beyond the outer surface to beyond the inner surface is reduced by the sound generated by the speaker.

公开(公告)号：US20180005623A1

公开(公告)日：2018-01-04

申请号：US15640764

申请日：2017-07-03

Applicant: EM-TECH. Co., Ltd.

Inventor： Choong Sheek Hong ,  Dong Sung Kim

IPC: G10K11/178 ,  H04R3/00 ,  H04R1/40 ,  H04R1/10 ,  H04R1/04

CPC classification number: H04R3/005 ,  G10K11/17857 ,  G10K11/17885 ,  G10K2210/1081 ,  G10K2210/111 ,  G10K2210/3046 ,  G10K2210/3056 ,  G10K2210/3219 ,  H04R1/028 ,  H04R1/04 ,  H04R1/1016 ,  H04R1/1041 ,  H04R1/406 ,  H04R5/0335 ,  H04R2420/07 ,  H04R2460/01

Abstract: A voice enhancing device with an audio focusing function is disclosed. The voice enhancing device has an audio focusing function capable of selectively enhancing voice depending on a speaking person's location. The voice enhancing device, which is wearable on a human body, includes: left and right earphones configured to fit into left and right ears of a wearer of the voice enhancing device, respectively; two or more microphones configured to acquire a sound; and a processing part configured to at least perform signal processing tasks for active noise cancellation on sound signals from the microphones and output processed sound signals to the earphones. The processing part is configured to perform the signal processing tasks to amplify only sound signals picked up from an interested direction and to attenuate sound signals picked up from other directions.

公开(公告)号：US08565442B2

公开(公告)日：2013-10-22

申请号：US12501732

申请日：2009-07-13

Applicant: Tsuyoshi Maeda ,  Masaaki Higashida ,  Toshihiro Ezaki ,  Yoshifumi Asao ,  Hiroyuki Kano

Inventor： Tsuyoshi Maeda ,  Masaaki Higashida ,  Toshihiro Ezaki ,  Yoshifumi Asao ,  Hiroyuki Kano

IPC: H03B29/00

CPC classification number: G10K11/178 ,  G10K2210/111 ,  G10K2210/1281 ,  G10K2210/3221

Abstract: A noise reduction device including a noise detection microphone including a high-frequency noise detection microphone and a low-frequency noise detection microphone for respectively detecting a high-frequency noise and a low-frequency noise generated from a noise source; a noise control unit for generating a control sound signal for cancelling a noise detected by the noise detection microphone in a control center of control space; and a loudspeaker for outputting a control sound based on the control sound signal from the noise controlling unit. The high-frequency noise microphone is disposed in a vicinity of a head portion of a user in a state in which directivity in an opposite direction with respect to the control center is added, and the low-frequency noise detection microphone is disposed outside of a sound-insulating wall.

Abstract translation: 一种降噪装置，包括：噪声检测麦克风，包括用于分别检测由噪声源产生的高频噪声和低频噪声的高频噪声检测麦克风和低频噪声检测麦克风; 噪声控制单元，用于生成用于消除由控制空间的控制中心中的噪声检测麦克风检测到的噪声的控制声音信号; 以及扬声器，用于基于来自噪声控制单元的控制声音信号输出控制声音。 高频噪声麦克风在相对于控制中心的相反方向的方向性相加的状态下设置在用户的头部附近，并且低频噪声检测麦克风设置在 隔音墙。

公开(公告)号：US08077873B2

公开(公告)日：2011-12-13

申请号：US12466282

申请日：2009-05-14

Applicant: Vasant Shridhar ,  Duane Wertz

Inventor： Vasant Shridhar ,  Duane Wertz

IPC: A61F11/06

CPC classification number: G10K11/178 ,  G10K2210/111 ,  G10K2210/1282 ,  G10K2210/3016

Abstract: An active noise control system generates an anti-noise signal to drive a first speaker group including at least one speaker to produce sound waves to destructively interfere with an undesired sound in at least one quiet zone. The active noise control system receives error signals representative of a combination of undesired sound and destructively interfering sound waves produced by the first speaker group. The active noise control system may select a second speaker group to replace the first speaker group based on the error signals.

Abstract translation: 有源噪声控制系统产生抗噪声信号以驱动包括至少一个扬声器的第一扬声器组以产生声波，以破坏性地干扰至少一个安静区域中的不期望的声音。 主动噪声控制系统接收代表由第一扬声器组产生的不期望的声音和相消干涉声波的组合的误差信号。 主动噪声控制系统可以基于误差信号选择第二扬声器组来替换第一扬声器组。

公开(公告)号：US20080187148A1

公开(公告)日：2008-08-07

申请号：US11966452

申请日：2007-12-28

Applicant: Tetsunori ITABASHI ,  Kohei ASADA

Inventor： Tetsunori ITABASHI ,  Kohei ASADA

IPC: G10K11/16

CPC classification number: G10K11/178 ,  G10K2210/1081 ,  G10K2210/111

Abstract: Disclosed herein is a headphone device, including: a sound pickup section configured to pick up an external sound; a directivity setting section configured to generate a directional pickup audio signal, which is an audio signal obtained by picking up the external sound with a desired directional characteristic, based on an audio signal outputted from the sound pickup section; a loudspeaker; an audio signal generation section configured to generate a cancellation-use audio signal for attenuating the directional pickup audio signal based on the directional pickup audio signal; and a driving signal generation section configured to generate a driving signal, which is an audio signal for driving the loudspeaker and includes at least the cancellation-use audio signal.

Abstract translation: 这里公开了一种耳机装置，包括：拾音部，被构造成拾取外部声音; 方向性设定部，被配置为基于从所述声音拾取部输出的音频信号，生成作为利用期望的方向特性拾取所述外部声音而获得的音频信号的定向拾取音频信号; 一个扬声器 音频信号生成部，被配置为基于所述定向拾取音频信号生成用于衰减所述定向拾取音频信号的取消使用音频信号; 以及驱动信号生成部，被配置为生成驱动信号，所述驱动信号是用于驱动扬声器的音频信号，并且至少包括取消使用音频信号。

公开(公告)号：US20180220231A1

公开(公告)日：2018-08-02

申请号：US15765021

申请日：2015-09-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, LP.

Inventor： Ticky Thakkar ,  Will Allen ,  Richard Sweet ,  Robert C. Brooks ,  Madhu Sudan Athreya

IPC: H04R3/00 ,  G10K11/178 ,  H04M3/56 ,  H04N7/14

CPC classification number: H04R3/005 ,  G06K9/00221 ,  G10K11/178 ,  G10K11/1785 ,  G10K11/17881 ,  G10K2210/111 ,  G10K2210/12 ,  H04M3/568 ,  H04N7/147 ,  H04R27/00 ,  H04R2410/05

Abstract: In example implementations, a system is disclosed for suppressing ambient sounds. In one example, the system includes a camera, a plurality of microphones, a plurality of speakers and a processor. The camera captures an image of a target, the plurality of microphones receives ambient sounds and a plurality of speakers outputs an audio signal to suppress the ambient sounds. The processor is in communication with the camera, the plurality of microphones and the plurality of speakers. The processor can identify a location on the target based on the image that is captured, determine a direction and a frequency of the ambient sounds, and generate the audio signal based on the direction and the frequency of the ambient sounds, the audio signal is directed towards the location on the target.

公开(公告)号：US20180167715A1

公开(公告)日：2018-06-14

申请号：US15839119

申请日：2017-12-12

Applicant: ONVOCAL, INC.

Inventor： William Wang Graylin ,  John Maddox

IPC: H04R1/10 ,  G10K11/178 ,  G06F3/16

CPC classification number: H04R1/1041 ,  G06F3/165 ,  G10K11/162 ,  G10K11/17827 ,  G10K11/17853 ,  G10K11/17854 ,  G10K2210/1081 ,  G10K2210/111 ,  H04R1/1008 ,  H04R1/1066 ,  H04R1/1083 ,  H04R5/033 ,  H04R27/00 ,  H04R2227/003 ,  H04R2420/01 ,  H04R2430/01 ,  H04R2430/23

Abstract: An audio headset that provides a “chat” mode to temporarily adjusts audio to preset levels to emphasize ambient sound, and includes a beamformer to provide directional speech isolation. The headset may include active noise cancellation and/or passive noise isolation. When entering chat mode, three or more relative audio levels are individually adjusted to presets, allowing the wearer to hear ambient noise and their own isolated voice, while attenuating other audio sources. This user-configurable combination of levels temporarily adjust the mix of signals that will be output to a wearer via the stereo headphone speakers.

公开(公告)号：US20180115839A1

公开(公告)日：2018-04-26

申请号：US15789085

申请日：2017-10-20

Applicant: Bose Corporation

Inventor： Jahn Dmitri Eichfeld ,  Daniel M. Gauger, JR. ,  Ryan C. Silvestri ,  Ryan TerMeulen

IPC: H04R25/00

CPC classification number: H04R25/453 ,  G10K11/17861 ,  G10K11/17881 ,  G10K2210/1081 ,  G10K2210/111 ,  H04R1/1016 ,  H04R1/1083 ,  H04R1/406 ,  H04R5/027 ,  H04R25/405 ,  H04R25/505 ,  H04R25/554 ,  H04R2460/01 ,  H04R2460/05

Abstract: In general, in one aspect, a hearing aid has an ANR circuit and an ear tip that acoustically occludes the ear. Such a hearing aid provides greater gain to sounds than would be stable in the same hearing aid with a vented ear tip. The ear tip and the ANR circuit in combination attenuate sounds reaching the ear canal through the hearing aid to a first level. The hearing aid detects sounds arriving at a microphone, amplifies those sounds, and provides the amplified sounds to the ear canal at a second level and later in time than the same sounds arrive at the ear canal through the ear tip. The first level is at least 14 dB greater than the second level, such that the amplified sounds do not interact with the passive sounds to result in spectral combing.

公开(公告)号：US09870762B2

公开(公告)日：2018-01-16

申请号：US14851774

申请日：2015-09-11

Applicant: Plantronics, Inc.

Inventor： Evan Harris Benway ,  Ken Kannapppan ,  Jacob T Meyberg

IPC: H04R3/02 ,  G10K11/175

CPC classification number: G10K11/175 ,  G10K11/004 ,  G10K2210/111

Abstract: Apparatus having corresponding computer-readable media and methods comprise a steerable loudspeaker system configured to produce sound based on audio delivered to the steerable loudspeaker system; a masking audio source configured to generate individualized masking audio based on preferences of a listener, and to deliver the individualized masking audio to the steerable loudspeaker system; and a controller configured to steer the steerable loudspeaker system based on a position of a listener.

公开(公告)号：US09159312B1

公开(公告)日：2015-10-13

申请号：US13159724

申请日：2011-06-14

Applicant: Kevin Tom

Inventor： Kevin Tom

IPC: G10K11/16 ,  G10K11/175 ,  H04R3/02

CPC classification number: G10K11/175 ,  G10K11/178 ,  G10K2210/111 ,  G10K2210/3215

Abstract: A device includes an audio processor, a first speaker, and a second speaker. The audio processor is configured to receive an audio signal. The first speaker is operatively coupled to the audio processor and is configured to produce a first sound wave. The first sound wave is associated with the audio signal. The second speaker is operatively coupled to the audio processor and is configured to produce a second sound wave. The second sound wave is configured to at least partially cancel the first sound wave.

Abstract translation: 一种装置包括音频处理器，第一扬声器和第二扬声器。 音频处理器被配置为接收音频信号。 第一扬声器可操作地耦合到音频处理器并且被配置为产生第一声波。 第一声​​波与音频信号相关联。 第二扬声器可操作地耦合到音频处理器并且被配置为产生第二声波。 第二声波被配置为至少部分地抵消第一声波。