Electronic apparatus having microphones with controllable front-side gain and rear-side gain
    1.
    发明授权
    Electronic apparatus having microphones with controllable front-side gain and rear-side gain 有权
    具有麦克风的电子设备具有可控的前侧增益和后侧增益

    公开(公告)号:US08300845B2

    公开(公告)日:2012-10-30

    申请号:US12822081

    申请日:2010-06-23

    摘要: An electronic apparatus is provided that has a rear-side and a front-side, a first microphone that generates a first signal, and a second microphone that generates a second signal. An automated balance controller generates a balancing signal based on an imaging signal. A processor processes the first and second signals to generate at least one beamformed audio signal, where an audio level difference between a front-side gain and a rear-side gain of the beamformed audio signal is controlled during processing based on the balancing signal.

    摘要翻译: 提供一种电子设备,其具有后侧和前侧,产生第一信号的第一麦克风和产生第二信号的第二麦克风。 自动平衡控制器基于成像信号产生平衡信号。 A处理器处理第一和第二信号以产生至少一个波束形成的音频信号,其中基于平衡信号在处理期间控制波束形成的音频信号的前侧增益和后侧增益之间的音频电平差。

    ELECTRONIC APPARATUS FOR GENERATING BEAMFORMED AUDIO SIGNALS WITH STEERABLE NULLS
    2.
    发明申请
    ELECTRONIC APPARATUS FOR GENERATING BEAMFORMED AUDIO SIGNALS WITH STEERABLE NULLS 有权
    用于生成具有可变核子的波纹音频信号的电子设备

    公开(公告)号:US20120019689A1

    公开(公告)日:2012-01-26

    申请号:US12843555

    申请日:2010-07-26

    摘要: An electronic apparatus is provided having a front side and a rear side oriented in opposite directions along a first axis, and a right-side and a left-side oriented in opposite directions along a second axis that is perpendicular to the first axis. A null control signal is generated based on an imaging signal. A first microphone located near the right-side of an electronic apparatus generates a first signal and a second microphone located near the left-side of the electronic apparatus generates a second signal. The first and second signals are processed, based on the null control signal, to generate a right beamformed audio signal having a first directional pattern having at least one first null, and a left beamformed audio signal having a second directional pattern having at least one second null. A first angular location (α) of the at least one first null and a second angular location (β) of the at least one second null are steered based on the null control signal.

    摘要翻译: 提供一种电子设备,其具有沿着第一轴线沿相反方向定向的前侧和后侧,以及沿着垂直于第一轴线的第二轴线沿相反方向定向的右侧和左侧。 基于成像信号生成空值控制信号。 位于电子设备右侧附近的第一麦克风产生第一信号,位于电子设备左侧附近的第二麦克风产生第二信号。 基于零控制信号来处理第一和第二信号,以产生具有至少一个第一零点的第一方向图形的右波束形成音频信号,以及具有至少一个第二频率的第二方向图的左波束形成音频信号 空值。 所述至少一个第二零点的所述至少一个第一空值和第二角度位置(&bgr)的第一角度位置(α)基于所述零点控制信号被转向。

    Thermacoustic piezoelectric generator
    3.
    发明申请
    Thermacoustic piezoelectric generator 有权
    热声压电发生器

    公开(公告)号:US20070090723A1

    公开(公告)日:2007-04-26

    申请号:US11492311

    申请日:2006-07-25

    IPC分类号: H01L41/00

    CPC分类号: H01L41/113 H02N2/18

    摘要: An electroactive transducer converts between acoustical power and electrical power. The transducer includes a diaphragm and a perimeter member. The perimeter member includes at least one electroactive element and is mechanically coupled to the perimeter of the diaphragm such that displacement of the diaphragm stresses the electroactive element.

    摘要翻译: 电动换能器在声功率和电功率之间进行转换。 换能器包括隔膜和周边构件。 周边构件包括至少一个电活性元件并且机械地联接到隔膜的周边,使得隔膜的位移强调电活性元件。

    THERMOACOUSTIC PIEZOELECTRIC GENERATOR
    4.
    发明申请
    THERMOACOUSTIC PIEZOELECTRIC GENERATOR 有权
    热电压力发电机

    公开(公告)号:US20060119224A1

    公开(公告)日:2006-06-08

    申请号:US10810907

    申请日:2004-03-26

    IPC分类号: H01L41/113

    CPC分类号: H01L41/113 H02N2/18

    摘要: A thermoacoustic generator includes a housing with a thermoacoustic core supported in the housing. The core is operable to introduce acoustical power into the housing to thereby oscillate the pressure of the gas in the housing at a frequency. A piezoelectric alternator is also supported in the housing and has a face that is movable when acted on by the acoustical power. The alternator includes a portion of piezoelectric material operable to produce electrical power when acted upon by a stress. The piezoelectric material is in mechanical communication with the movable face so that movement of the face stresses the piezoelectric material. The alternator has a moving mass that serves as a substantial portion of the resonating mass inside the housing, thereby providing a pressure oscillation frequency in the housing substantially lower than for a similar system with a rigid member replacing the alternator.

    摘要翻译: 热声发生器包括具有支撑在壳体中的热声芯体的壳体。 芯可操作地将声功率引入壳体中,从而以一定的频率振荡壳体中的气体的压力。 压电交流发电机也被支撑在壳体中,并具有当由声功率作用时可移动的面。 交流发电机包括压电材料的一部分,其可操作以在受到应力作用时产生电功率。 压电材料与可动面机械连通,使得面的运动迫使压电材料。 交流发电机具有作为壳体内的谐振质量的实质部分的运动质量,从而在壳体中提供基本上低于具有替代交流发电机的刚性构件的类似系统的压力振荡频率。

    ELECTRONIC APPARATUS FOR GENERATING MODIFIED WIDEBAND AUDIO SIGNALS BASED ON TWO OR MORE WIDEBAND MICROPHONE SIGNALS
    5.
    发明申请
    ELECTRONIC APPARATUS FOR GENERATING MODIFIED WIDEBAND AUDIO SIGNALS BASED ON TWO OR MORE WIDEBAND MICROPHONE SIGNALS 有权
    用于生成基于两个或更多宽带麦克风信号的修改的宽带音频信号的电子设备

    公开(公告)号:US20120013768A1

    公开(公告)日:2012-01-19

    申请号:US12837314

    申请日:2010-07-15

    IPC分类号: H04R3/00 H04N5/76

    摘要: At least two microphones generate wideband electrical audio signals in response to incoming sound waves, and the wideband audio signals are filtered to generate low band signals and high band signals. From the low band signals, low band beamformed signals are generated, and the low band beamformed signals are combined with the high band signals to generate modified wideband audio signals. In one implementation, an electronic apparatus is provided that includes a microphone array, a crossover, a beamformer module, and a combiner module. The microphone array has at least two pressure microphones that generate wideband electrical audio signals in response to incoming sound waves. The crossover generates low band signals and high band signals from the wideband electrical audio signals. The beamformer module generates low band beamformed signals from the low band signals. The combiner module combines the high band signals and the low band beamformed signals to generate modified wideband audio signals.

    摘要翻译: 至少两个麦克风响应于传入的声波产生宽带电音频信号,并且对宽带音频信号进行滤波以产生低频带信号和高频带信号。 从低频带信号,产生低频带波束形成的信号,并将低频带波束形成的信号与高频带信号组合以产生经修正的宽带音频信号。 在一个实现中,提供一种电子设备,其包括麦克风阵列,交叉,波束形成器模块和组合器模块。 麦克风阵列具有至少两个压力麦克风,其响应于传入的声波产生宽带电音频信号。 交叉从宽带电音频信号产生低频带信号和高频带信号。 波束形成器模块从低频信号产生低频波束形成的信号。 组合器模块组合了高频带信号和低频带波束形成信号以产生经修改的宽带音频信号。

    ACOUSTIC WAVEGUIDE MODE CONTROLLING
    6.
    发明申请
    ACOUSTIC WAVEGUIDE MODE CONTROLLING 有权
    声音波形模式控制

    公开(公告)号:US20090084625A1

    公开(公告)日:2009-04-02

    申请号:US11852903

    申请日:2007-09-27

    IPC分类号: G10K11/00

    摘要: An acoustic device including a first acoustic waveguide having two open ends; a second acoustic waveguide; and an acoustic driver having a first and second radiating surface positioned so that the first: radiating surface radiates into the first waveguide and the second surface radiates into the second waveguide. An acoustic device including an acoustic driver and an acoustic waveguide with two open ends. A method for making the acoustic device.

    摘要翻译: 声学装置,包括具有两个开口端的第一声波导; 第二声波导; 以及具有第一和第二辐射表面的声学驱动器,所述第一和第二辐射表面定位成使得所述第一辐射表面辐射入所述第一波导,并且所述第二表面辐射到所述第二波导中 包括声学驱动器和具有两个开口端的声波导的声学装置。 一种用于制造声学装置的方法。

    Electronic apparatus for generating beamformed audio signals with steerable nulls
    7.
    发明授权
    Electronic apparatus for generating beamformed audio signals with steerable nulls 有权
    用于产生具有可控空值的波束形成音频信号的电子设备

    公开(公告)号:US08433076B2

    公开(公告)日:2013-04-30

    申请号:US12843555

    申请日:2010-07-26

    IPC分类号: H04R3/00

    摘要: An electronic apparatus is provided having a front side and a rear side oriented in opposite directions along a first axis, and a right-side and a left-side oriented in opposite directions along a second axis that is perpendicular to the first axis. A null control signal is generated based on an imaging signal. A first microphone located near the right-side of an electronic apparatus generates a first signal and a second microphone located near the left-side of the electronic apparatus generates a second signal. The first and second signals are processed, based on the null control signal, to generate a right beamformed audio signal having a first directional pattern having at least one first null, and a left beamformed audio signal having a second directional pattern having at least one second null. A first angular location (α) of the at least one first null and a second angular location (β) of the at least one second null are steered based on the null control signal.

    摘要翻译: 提供一种电子设备,其具有沿着第一轴线沿相反方向定向的前侧和后侧,以及沿着垂直于第一轴线的第二轴线沿相反方向定向的右侧和左侧。 基于成像信号生成空值控制信号。 位于电子设备右侧附近的第一麦克风产生第一信号,位于电子设备左侧附近的第二麦克风产生第二信号。 基于零控制信号来处理第一和第二信号,以产生具有至少一个第一零点的第一方向图形的右波束形成音频信号,以及具有至少一个第二频率的第二方向图的左波束形成音频信号 空值。 所述至少一个第二零点的所述至少一个第一空值和第二角位置(β)的第一角度位置(α)基于所述零点控制信号被转向。

    Acoustic waveguide mode controlling
    8.
    发明授权
    Acoustic waveguide mode controlling 有权
    声波导模式控制

    公开(公告)号:US07886869B2

    公开(公告)日:2011-02-15

    申请号:US11852903

    申请日:2007-09-27

    摘要: An acoustic device including a first acoustic waveguide having two open ends; a second acoustic waveguide; and an acoustic driver having a first and second radiating surface positioned so that the first: radiating surface radiates into the first waveguide and the second surface radiates into the second waveguide. An acoustic device including an acoustic driver and an acoustic waveguide with two open ends. A method for making the acoustic device.

    摘要翻译: 声学装置,包括具有两个开口端的第一声波导; 第二声波导; 以及具有第一和第二辐射表面的声学驱动器,所述第一和第二辐射表面定位成使得所述第一辐射表面辐射入所述第一波导,并且所述第二表面辐射到所述第二波导中 包括声学驱动器和具有两个开口端的声波导的声学装置。 一种用于制造声学装置的方法。

    Electronic apparatus for generating modified wideband audio signals based on two or more wideband microphone signals
    9.
    发明授权
    Electronic apparatus for generating modified wideband audio signals based on two or more wideband microphone signals 有权
    用于基于两个或多个宽带麦克风信号产生改进的宽带音频信号的电子设备

    公开(公告)号:US08638951B2

    公开(公告)日:2014-01-28

    申请号:US12837314

    申请日:2010-07-15

    摘要: At least two microphones generate wideband electrical audio signals in response to incoming sound waves, and the wideband audio signals are filtered to generate low band signals and high band signals. From the low band signals, low band beamformed signals are generated, and the low band beamformed signals are combined with the high band signals to generate modified wideband audio signals. In one implementation, an electronic apparatus is provided that includes a microphone array, a crossover, a beamformer module, and a combiner module. The microphone array has at least two pressure microphones that generate wideband electrical audio signals in response to incoming sound waves. The crossover generates low band signals and high band signals from the wideband electrical audio signals. The beamformer module generates low band beamformed signals from the low band signals. The combiner module combines the high band signals and the low band beamformed signals to generate modified wideband audio signals.

    摘要翻译: 至少两个麦克风响应于传入的声波产生宽带电音频信号,并且对宽带音频信号进行滤波以产生低频带信号和高频带信号。 从低频带信号,产生低频带波束形成的信号,并将低频带波束形成的信号与高频带信号组合以产生经修正的宽带音频信号。 在一个实现中,提供一种电子设备,其包括麦克风阵列,交叉,波束形成器模块和组合器模块。 麦克风阵列具有至少两个压力麦克风,其响应于传入的声波产生宽带电音频信号。 交叉从宽带电音频信号产生低频带信号和高频带信号。 波束形成器模块从低频信号产生低频波束形成的信号。 组合器模块组合高频带信号和低频带波束形成信号以产生经修改的宽带音频信号。

    ELECTRONIC APPARATUS HAVING MICROPHONES WITH CONTROLLABLE FRONT-SIDE GAIN AND REAR-SIDE GAIN
    10.
    发明申请
    ELECTRONIC APPARATUS HAVING MICROPHONES WITH CONTROLLABLE FRONT-SIDE GAIN AND REAR-SIDE GAIN 有权
    具有可控的前置增益和后端增益的麦克风的电子设备

    公开(公告)号:US20110317041A1

    公开(公告)日:2011-12-29

    申请号:US12822081

    申请日:2010-06-23

    摘要: An electronic apparatus is provided that has a rear-side and a front-side, a first microphone that generates a first signal, and a second microphone that generates a second signal. An automated balance controller generates a balancing signal based on an imaging signal. A processor processes the first and second signals to generate at least one beamformed audio signal, where an audio level difference between a front-side gain and a rear-side gain of the beamformed audio signal is controlled during processing based on the balancing signal.

    摘要翻译: 提供一种电子设备,其具有后侧和前侧,产生第一信号的第一麦克风和产生第二信号的第二麦克风。 自动平衡控制器基于成像信号产生平衡信号。 A处理器处理第一和第二信号以产生至少一个波束形成的音频信号,其中基于平衡信号在处理期间控制波束形成的音频信号的前侧增益和后侧增益之间的音频电平差。