公开(公告)号：US20110317848A1

公开(公告)日：2011-12-29

申请号：US12822176

申请日：2010-06-23

Applicant: Plamen A. Ivanov ,  Scott A. Mehrens ,  Kevin J. Bastyr ,  Joel A. Clark

Inventor： Plamen A. Ivanov ,  Scott A. Mehrens ,  Kevin J. Bastyr ,  Joel A. Clark

IPC: H04B15/00

CPC classification number: H04R3/04 ,  H04R1/08 ,  H04R3/005 ,  H04R2410/07

Abstract: A method and apparatus for detecting microphone interference includes first and second built-in microphones producing first and second microphone signals. A first filter bank creates first high-frequency-band and first low-frequency-band signals from the first microphone signal. A second filter bank creates second high-frequency-band and second low-frequency-band signals from the second microphone signal. A first measurement calculator determines a high-frequency-band energy value from the first high-frequency-band signal and the second high-frequency-band signal when the first and second high-frequency-band signals' magnitudes exceeds predetermined thresholds. A second measurement calculator calculates a low-frequency-band energy value from the first low-frequency-band signal and the second low-frequency-band signal when the first and second low-frequency-band signals' magnitudes exceed predetermined thresholds. A logic control block, coupled to the first measurement calculator and the second measurement calculator, detects microphone interference and produces an output signal indicating microphone occlusion or wind noise.

Abstract translation: 用于检测麦克风干扰的方法和装置包括产生第一和第二麦克风信号的第一和第二内置麦克风。 第一滤波器组从第一麦克风信号创建第一高频带和第一低频带信号。 第二滤波器组从第二麦克风信号产生第二高频带和第二低频带信号。 当第一和第二高频带信号的幅度超过预定阈值时，第一测量计算器确定来自第一高频带信号和第二高频带信号的高频带能量值。 当第一和第二低频带信号的幅度超过预定阈值时，第二测量计算器从第一低频带信号和第二低频带信号计算低频带能量值。 耦合到第一测量计算器和第二测量计算器的逻辑控制块检测麦克风干扰并产生指示麦克风闭塞或风噪声的输出信号。

公开(公告)号：US08046219B2

公开(公告)日：2011-10-25

申请号：US11874263

申请日：2007-10-18

Applicant: Robert A. Zurek ,  Jeffrey M. Axelrod ,  Joel A. Clark ,  Holly L. Francois ,  Scott K. Isabelle ,  David J. Pearce ,  James A. Rex

Inventor： Robert A. Zurek ,  Jeffrey M. Axelrod ,  Joel A. Clark ,  Holly L. Francois ,  Scott K. Isabelle ,  David J. Pearce ,  James A. Rex

IPC: G10L15/20

CPC classification number: G10L21/0208 ,  G10L21/0272 ,  G10L2021/02165

Abstract: A system, method, and apparatus for separating speech signal from a noisy acoustic environment. The separation process may include directional filtering, blind source separation, and dual input spectral subtraction noise suppressor. The input channels may include two omnidirectional microphones whose output is processed using phase delay filtering to form speech and noise beamforms. Further, the beamforms may be frequency corrected. The omnidirectional microphones generate one channel that is substantially only noise, and another channel that is a combination of noise and speech. A blind source separation algorithm augments the directional separation through statistical techniques. The noise signal and speech signal are then used to set process characteristics at a dual input noise spectral subtraction suppressor (DINS) to efficiently reduce or eliminate the noise component. In this way, the noise is effectively removed from the combination signal to generate a good qualify speech signal.

Abstract translation: 一种用于从噪声声环境分离语音信号的系统，方法和装置。 分离过程可以包括方向滤波，盲源分离和双输入频谱减法噪声抑制器。 输入通道可以包括两个全向麦克风，其输出使用相位延迟滤波处理以形成语音和噪声波束形式。 此外，波束形状可以被频率校正。 全向麦克风产生基本上只有噪声的一个通道，以及作为噪声和语音的组合的另一个通道。 盲源分离算法通过统计技术增强了方向分离。 然后，噪声信号和语音信号用于设置双输入噪声频谱减法抑制器（DINS）的过程特性，以有效降低或消除噪声分量。 以这种方式，有效地从组合信号中去除噪声以产生良好的合格语音信号。

公开(公告)号：US09966085B2

公开(公告)日：2018-05-08

申请号：US11842305

申请日：2007-08-21

Applicant: Jianming J. Song ,  Joel A. Clark

Inventor： Jianming J. Song ,  Joel A. Clark

IPC: H04B15/00 ,  G10L15/20 ,  H04M1/00 ,  G10L21/0208 ,  G10L25/78 ,  G10L21/02 ,  G10L19/02 ,  G10L21/00 ,  G10L15/14 ,  G10L21/0232 ,  G10L19/00

CPC classification number: G10L21/0208 ,  G10L15/142 ,  G10L15/20 ,  G10L19/00 ,  G10L19/0204 ,  G10L21/00 ,  G10L21/02 ,  G10L21/0232 ,  G10L25/78

Abstract: A noise suppression circuit for use in an audio signal processing circuit is provided. The noise suppression circuit includes a plurality of different types of noise activity detectors, which are each adapted for detecting the presence of a different type of noise in a received signal. The noise suppression circuit further includes a plurality of different types of noise reduction circuits, which are each adapted for removing a different type of detected noise, where each noise reduction circuit respectively corresponds to one of the plurality of noise activity detectors. The respective noise reduction circuit is then selectively activated to condition the received signal to reduce the amount of the detected types of noise, when each one of the plurality of noise activity detectors detects the presence of a corresponding type of noise in the received signal.

公开(公告)号：US20090169041A1

公开(公告)日：2009-07-02

申请号：US11965077

申请日：2007-12-27

Applicant: ROBERT A. ZUREK ,  SHAOHAI CHEN ,  JOEL A. CLARK ,  PAUL R. STEUER ,  GILES DAVIS

Inventor： ROBERT A. ZUREK ,  SHAOHAI CHEN ,  JOEL A. CLARK ,  PAUL R. STEUER ,  GILES DAVIS

IPC: H04R1/20 ,  H04R1/02

CPC classification number: H04R1/2826 ,  H04M1/0254 ,  H04M1/035 ,  H04R1/023 ,  H04R1/2819 ,  H04R1/2842 ,  H04R2499/11

Abstract: Disclosed is a portable audio device and a quick-disconnect passive acoustic cover. The portable audio device includes a housing and a speaker supported by the housing that have a first system frequency response. The speaker of the portable audio device has a first side and a second side associated with a first audio port and a second audio port, associated with a first acoustic load and a second acoustic load respectively. The housing is configured to removably receive the cover which is configured to redefine at least one of the first acoustic load and the second acoustic load to replace the first system frequency response with a second system frequency response. The cover provides one or more additional surrounding structures, which replace the inherent frequency response with an improved frequency response. Different embodiments of the disclosed cover provide a plurality of sound quality enhancement options to a user.

Abstract translation: 公开了一种便携式音频设备和快速断开的无源声学覆盖。 便携式音频设备包括壳体和由壳体支撑的具有第一系统频率响应的扬声器。 便携式音频设备的扬声器具有与分别与第一声学负载和第二声学负载相关联的第一音频端口和第二音频端口相关联的第一侧和第二侧。 壳体被配置为可移除地接收被配置为重新定义第一声学负载和第二声学负载中的至少一个的盖，以用第二系统频率响应替换第一系统频率响应。 该盖提供一个或多个附加的周围结构，其以改进的频率响应代替固有的频率响应。 所公开的封面的不同实施例向用户提供多个声音质量增强选项。

公开(公告)号：US20090059821A1

公开(公告)日：2009-03-05

申请号：US11848376

申请日：2007-08-31

Applicant: Jincheng Wu ,  Joel A. Clark

Inventor： Jincheng Wu ,  Joel A. Clark

IPC: H04B3/20

CPC classification number: H04M9/082

Abstract: A method (200) of cancelling echo in a duplex communication device (100). The method can include detecting a level of noise present on an uplink signal path (104), generating a noise classifier (194) based on the detected level of noise, detecting whether uplink audio is present on the uplink signal path (104) and detecting whether downlink audio is present on a downlink signal path (102). The method further can include generating a double talk flag (136) based at least on the noise classifier, whether uplink audio is present on the uplink signal path, and whether downlink audio is present on the downlink signal path. In addition, the double talk flag, the noise classifier and an uplink signal can be processed to generate an output signal (120) having reduced echo.

Abstract translation: 一种在双工通信设备（100）中消除回声的方法（200）。 该方法可以包括检测存在于上行链路信号路径（104）上的噪声电平，基于检测到的噪声电平产生噪声分类器（194），检测上行链路信号路径（104）上是否存在上行链路音频并检测 下行链路信号路径（102）是否存在下行链路音频。 该方法还可以包括至少基于噪声分类器生成双向通话标志（136），上行链路信号路径上是否存在上行链路音频，以及下行链路信号路径中是否存在下行链路音频。 此外，可以处理双向通话标记，噪声分类器和上行链路信号以产生具有减小的回波的输出信号（120）。

公开(公告)号：US6058315A

公开(公告)日：2000-05-02

申请号：US614748

申请日：1996-03-13

Applicant: Joel A. Clark

Inventor： Joel A. Clark

IPC: H04M1/02 ,  H04M1/03 ,  H04R1/22 ,  H04Q7/32

CPC classification number: H04M1/03 ,  H04M1/0214 ,  H04R1/225

Abstract: A speaker (302) is arranged in an enclosure formed by a front housing portion (200) and a rear housing portion (202), so that an air-gap is between a diaphragm (314) of the speaker and ports (114) formed in the front housing that face the diaphragm. The air-gap provides an acoustic leak into the enclosure, which makes the frequency response of the speaker relatively independent of the seal formed by a human ear and the front housing portion. Sound-absorbing material (304,300) disposed on either side of the speaker, ports that extend beyond the circumference of the speaker, and a filter (600) can be added to further enhance the audio quality of the speaker.

Abstract translation: 扬声器（302）布置在由前壳体部分（200）和后壳体部分（202）形成的外壳中，使得空气隙位于扬声器的隔膜（314）和形成的端口（114）之间 在前面的外壳面对隔膜。 气隙在外壳中提供声音泄漏，这使得扬声器的频率响应相对独立于由人耳和前壳体部分形成的密封。 设置在扬声器的任一侧的吸音材料（304,300），延伸超出扬声器圆周的端口，以及滤光器（600），以进一步增强扬声器的音频质量。

公开(公告)号：US20190122656A1

公开(公告)日：2019-04-25

申请号：US16216908

申请日：2018-12-11

Applicant: Joel A. Clark ,  Tenkasi V. Ramabadran ,  Mark A. Jasiuk

Inventor： Joel A. Clark ,  Tenkasi V. Ramabadran ,  Mark A. Jasiuk

IPC: G10L15/18 ,  G10L25/84 ,  G10L21/0264 ,  G10L15/06

CPC classification number: G10L15/1807 ,  G10L15/063 ,  G10L15/20 ,  G10L21/0264 ,  G10L25/84 ,  G10L2015/088

Abstract: An electronic device includes a microphone that receives an audio signal that includes a spoken trigger phrase, and a processor that is electrically coupled to the microphone. The processor measures characteristics of the audio signal, and determines, based on the measured characteristics, whether the spoken trigger phrase is acceptable for trigger phrase model training. If the spoken trigger phrase is determined not to be acceptable for trigger phrase model training, the processor rejects the trigger phrase for trigger phrase model training.

公开(公告)号：US20110212754A1

公开(公告)日：2011-09-01

申请号：US13103416

申请日：2011-05-09

Applicant: Robert A. Zurek ,  Gregory R. Black ,  Joel A. Clark

Inventor： Robert A. Zurek ,  Gregory R. Black ,  Joel A. Clark

IPC: H04W88/02

CPC classification number: H04M1/605 ,  H04M1/03

Abstract: A flip-type communication device 200 includes a base housing 220 and an auxiliary housing 225. The base housing has an audio output 320 and the auxiliary housing has an earpiece 240 for another audio output. An unattenuated acoustic path has an input end coupled to an audio transducer 115 and an output end coupled to the audio output 320 while an attenuated acoustic path has an input end coupled to the output end of the unattenuated path and an output end coupled to the earpiece region 240 during a privacy mode and having the input end uncoupled from the output end of the unattenuated path during a speakerphone mode.

Abstract translation: 翻盖式通信装置200包括基座壳体220和辅助壳体225.基座壳体具有音频输出320，并且辅助壳体具有用于另一音频输出的耳机240。 未衰减的声学路径具有耦合到音频换能器115的输入端和耦合到音频输出320的输出端，而衰减的声学路径具有耦合到未衰减路径的输出端的输入端和耦合到耳机的输出端 区域240，并且在扬声器模式期间使输入端与未衰减路径的输出端分离。

公开(公告)号：US07961900B2

公开(公告)日：2011-06-14

申请号：US11170358

申请日：2005-06-29

Applicant: Robert A. Zurek ,  Greg R. Black ,  Joel A. Clark

Inventor： Robert A. Zurek ,  Greg R. Black ,  Joel A. Clark

IPC: H04R1/20 ,  H04R9/06 ,  H04M1/00

CPC classification number: H04M1/605 ,  H04M1/03

Abstract: A communication device 100 includes a first audio output 105; a second audio output 110; an audio transducer 115 for dual mode use; a shuttered acoustic path 120 coupled between the audio transducer 115 and the first audio output 105; and an attenuated acoustic path 125 coupled between the audio transducer 115 and the second audio output 110.

Abstract translation: 通信设备100包括第一音频输出105; 第二音频输出110; 用于双模式使用的音频传感器115; 耦合在音频换能器115和第一音频输出105之间的快门声路径120; 以及耦合在音频换能器115和第二音频输出110之间的衰减的声学路径125。

公开(公告)号：US20090169040A1

公开(公告)日：2009-07-02

申请号：US11965022

申请日：2007-12-27

Applicant: SHAOHAI CHEN ,  JOEL A. CLARK ,  PAUL R. STEUER ,  ROBERT A ZUREK ,  ROGER W. ADY ,  GILES DAVIS

Inventor： SHAOHAI CHEN ,  JOEL A. CLARK ,  PAUL R. STEUER ,  ROBERT A ZUREK ,  ROGER W. ADY ,  GILES DAVIS

IPC: H04R1/02

CPC classification number: H04R1/2857 ,  H04R2205/021

Abstract: Disclosed are passive acoustic structures, portable audio devices configured for use with the passive acoustic structures and methods for enhancing the frequency output of a speaker of a portable device configured for use with a disclosed passive acoustic structure. The disclosed portable audio device may include an opening proximal a speaker cavity of the device, a shutter or door to open and close the opening so that the device interoperates with a docking station of a passive acoustic structure including a labyrinth or a transmission line system that may increase the frequency range of the system. For an end user to experience the music and multimedia features of a portable audio device, and in particular a mobile communication device, the above-described passive acoustic structure may provide a bass enhancement for the typically small loudspeaker of a portable audio device with no additional loudspeaker and therefore no additional circuitry.

Abstract translation: 公开了被动声学结构，被配置为与无源声学结构一起使用的便携式音频设备和用于增强被配置为与公开的被动声学结构一起使用的便携式设备的扬声器的频率输出的方法。 所公开的便携式音频设备可以包括靠近设备的扬声器腔的开口，用于打开和关闭开口的快门或门，使得设备与包括迷宫式或无线传输线系统的无源声学结构的对接站互操作， 可能会增加系统的频率范围。 为了使终端用户体验便携式音频设备，特别是移动通信设备的音乐和多媒体特征，上述无源声学结构可以为便携式音频设备的典型的小型扬声器提供低音增强，而不需要附加 扬声器，因此没有附加电路。