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    SPEECH SIGNAL PROCESSING
    1.
    发明申请
    SPEECH SIGNAL PROCESSING 审中-公开
    语音信号处理

    公开(公告)号：US20110246187A1

    公开(公告)日：2011-10-06

    申请号：US13133797

    申请日：2009-12-10

    申请人： Sriram Srinivasan ,  Ashish Vijay Pandharipande

    发明人： Sriram Srinivasan ,  Ashish Vijay Pandharipande

    IPC分类号： G10L19/00

    CPC分类号： G10L25/78 ,  A61B5/0488 ,  A61B5/4803 ,  G10L15/24 ,  G10L21/02 ,  H04R3/005

    摘要： A speech signal processing system comprises an audio processor (103) for providing a first signal representing an acoustic speech signal of a speaker. An EMG processor (109) provides a second signal which represents an electromyographic signal for the speaker captured simultaneously with the acoustic speech signal. A speech processor (105) is arranged to process the first signal in response to the second signal to generate a modified speech signal. The processing may for example be a beam forming, noise compensation, or speech encoding. Improved speech processing may be achieved in particular in an acoustically noisy environment.

    摘要翻译： 语音信号处理系统包括用于提供表示扬声器的声学语音信号的第一信号的音频处理器（103）。 EMG处理器（109）提供表示与声学语音信号同时捕获的扬声器的肌电信号的第二信号。 语音处理器（105）被布置成响应于第二信号来处理第一信号以产生经修改的语音信号。 该处理可以例如是波束形成，噪声补偿或语音编码。 可以在声学噪声环境中特别地实现改进的语音处理。

    AUDIO SYSTEM AND METHOD OF OPERATION THEREFOR
    2.
    发明申请
    AUDIO SYSTEM AND METHOD OF OPERATION THEREFOR 有权
    音频系统及其操作方法

    公开(公告)号：US20130272096A1

    公开(公告)日：2013-10-17

    申请号：US13996347

    申请日：2012-01-02

    申请人： Ashish Vijay Pandharipande ,  Sriram Srinivasan

    发明人： Ashish Vijay Pandharipande ,  Sriram Srinivasan

    IPC分类号： H04R25/00

    CPC分类号： H04R25/405 ,  G01S7/521 ,  G01S15/06 ,  G01S15/10 ,  G01V1/001 ,  G10K11/348 ,  H04M3/56 ,  H04R1/403 ,  H04R1/406 ,  H04R3/005 ,  H04R3/12 ,  H04R2400/01 ,  H04R2430/03 ,  H04R2430/20 ,  H04R2499/11 ,  H04R2499/13 ,  H04S7/303 ,  H04S7/305 ,  H04S2420/07

    摘要： An audio system comprises an ultrasound sensor array (105) which has a plurality of ultrasound sensor elements, and an audio band array (101) comprising a plurality of audio band elements. The same array of wideband audio transducers may be used for both the ultrasound sensor array (105) and the audio band array (101). An estimator (107) generates a presence characteristic of a user in response to ultrasound signals received from the ultrasound sensor array. The presence characteristic may specifically comprise a position estimate for the user. An audio array circuit (103) generates a directional response for the audio band array (101) by applying weights to individual audio band signals for the audio band elements. A weight circuit (109) determines the weights in response to the presence characteristic. The system may provide improved adaptation of the directivity of the audio band array (101) and specifically does not require the sound source in the audio band to be active for adaptation.

    摘要翻译： 音频系统包括具有多个超声波传感器元件的超声波传感器阵列（105）和包括多个音频带元件的音频阵列（101）。 相同的宽带音频换能器阵列可以用于超声波传感器阵列（105）和音频阵列（101）。 估计器（107）响应于从超声波传感器阵列接收的超声信号产生用户的存在特性。 存在特性可以具体地包括用户的位置估计。 音频阵列电路（103）通过对音频带元件的各个音频信号应用权重来产生音频阵列（101）的定向响应。 加权电路（109）响应于存在特性来确定权重。 该系统可以提供对音频带阵列（101）的方向性的改进的适配，并且具体地不要求音频频带中的声源对于适应是有效的。

    Dedicated pulsing valve for compressor cylinder
    8.
    发明授权
    Dedicated pulsing valve for compressor cylinder 有权
    压缩机气缸专用脉动阀

    公开(公告)号：US08726679B2

    公开(公告)日：2014-05-20

    申请号：US13058725

    申请日：2009-08-11

    申请人： Alexander Lifson ,  Sriram Srinivasan ,  Paul J. Flanigan

    发明人： Alexander Lifson ,  Sriram Srinivasan ,  Paul J. Flanigan

    IPC分类号： F25B49/02 ,  F04B35/00

    CPC分类号： F04B7/00 ,  F04B1/02 ,  F04B1/0452

    摘要： A reciprocating piston compressor for use in a refrigerant compression circuit comprises first and second intake manifolds, first and second reciprocating piston compression units, an outlet manifold and a first pulsing valve. The intake manifolds segregate inlet flow into the compressor. The first and second reciprocating piston compression units receive flow from the first and second intake manifolds, respectively. The outlet manifold collects and distributes compressed refrigerant from the compression units. The first pulsing valve is mounted externally of the first intake manifold to regulate refrigerant flow into the first intake manifold. In another embodiment, a second valve is mounted externally of the second intake manifold to regulate flow into the second intake manifold, and the first and second valves are operated by a controller. The controller activates the first valve with variable width pulses having intervals less than an operating inertia of the refrigerant compression circuit.

    摘要翻译： 用于制冷剂压缩回路的往复活塞式压缩机包括第一和第二进气歧管，第一和第二往复活塞压缩单元，出口歧管和第一脉动阀。 进气歧管隔离进入压缩机的入口流。 第一和第二往复活塞压缩单元分别接收来自第一和第二进气歧管的流量。 出口歧管从压缩单元收集和分配压缩的制冷剂。 第一脉冲阀安装在第一进气歧管的外部以调节进入第一进气歧管的制冷剂流。 在另一个实施例中，第二阀安装在第二进气歧管的外部以调节进入第二进气歧管的流量，并且第一和第二阀由控制器操作。 控制器以可变宽度脉冲激活具有小于制冷剂压缩回路的操作惯性的间隔的第一阀。

    NOISE REDUCTION SYSTEM WITH REMOTE NOISE DETECTOR
    9.
    发明申请
    NOISE REDUCTION SYSTEM WITH REMOTE NOISE DETECTOR 有权
    具有远程噪声检测器的噪声减少系统

    公开(公告)号：US20130262101A1

    公开(公告)日：2013-10-03

    申请号：US13993100

    申请日：2011-12-07

    申请人： Sriram Srinivasan

    发明人： Sriram Srinivasan

    IPC分类号： G10L21/0208

    CPC分类号： G10L21/0208 ,  G10L2021/02165

    摘要： Noise reduction system with remote noise detector The present invention relates to a noise reduction system with at least one remote noise detector placed close to at least one noise source, which transmits relevant information to a primary device where it is used for noise reduction. Thereby, acoustic signal enhancement can be achieved via the at least one remote noise detector in that a noise estimate is transmitted to controller for noise reduction in the signal obtained from a primary source.

    摘要翻译： 具有远程噪声检测器的降噪系统技术领域本发明涉及一种降噪系统，该系统具有至少一个靠近至少一个噪声源的远程噪声检测器，其将相关信息发送到用于降噪的主要装置。 因此，可以经由至少一个远程噪声检测器来实现声信号增强，因为噪声估计被发送到控制器以用于从主源获得的信号中的噪声降低。