利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

26 条记录 (耗时 0.018 秒)

    Magnetic suspension transducer
    2.
    发明授权
    Magnetic suspension transducer 有权
    磁悬浮传感器

    公开(公告)号：US08942409B2

    公开(公告)日：2015-01-27

    申请号：US11628395

    申请日：2005-06-03

    申请人： Kenneth L. Kantor ,  Ioannis Kanellakopoulos ,  Alireza Jabbari

    发明人： Kenneth L. Kantor ,  Ioannis Kanellakopoulos ,  Alireza Jabbari

    IPC分类号： H04R25/00 ,  H04R9/02

    CPC分类号： H04R1/00 ,  H04R9/025 ,  H04R9/06 ,  H04R9/066 ,  H04R11/02 ,  H04R25/00 ,  H04R2209/041

    摘要： An improved electrodynamic acoustic transducer eliminates or reduces the need for flexible or elastic materials to suspend an internal magnetic element by using both static and dynamic signal-dependent magnetic fields to control its movement. In one implementation, the transducer has a magnet that moves within a surrounding tube. This tube in turn supports one or more electromagnetic coils that generate a dynamic signal-dependent magnetic field that causes the internal magnetic element to vibrate. The surrounding tube also supports one or more magnets whose location on the tube is fixed and whose magnetic fields provide appropriate restoring forces acting on the internal magnetic element. These fixed magnets may be replaced or supplemented by ferromagnetic materials. This transducer may provide sound and infrasonic vibration by coupling the internal magnetic element to other radiating elements or by being placed in close proximity to or in actual contact with the pinna or meatus of the human ear when used in headphones or earphones, for example, and it also may provide sound through the direct vibration of the air in contact with the surface of the internal magnetic element. When direct atmospheric coupling is not required, the transducer may be assembled in a sealed enclosure.

    摘要翻译： 改进的电动声学换能器通过使用静态和动态信号相关磁场来控制其运动来消除或减少对柔性或弹性材料悬挂内部磁性元件的需要。 在一个实施方案中，换能器具有在周围管内移动的磁体。 该管又支持一个或多个电磁线圈，其产生导致内部磁性元件振动的动态信号相关磁场。 周围管还支撑一个或多个磁体，其位于管上的位置是固定的，并且其磁场提供作用在内部磁性元件上的合适的恢复力。 这些固定磁体可以被铁磁材料代替或补充。 该传感器可以通过将内部磁性元件耦合到其它辐射元件或者当用于耳机或耳机时被放置在与人耳的耳廓或耳道紧密接触或实际接触的位置时，提供声音和次声振动，例如， 也可以通过与内部磁性元件的表面接触的空气的直接振动来提供声音。 当不需要直接大气耦合时，传感器可以组装在密封的外壳中。

    Magnetic Suspension Transducer
    4.
    发明申请
    Magnetic Suspension Transducer 有权
    磁悬浮传感器

    公开(公告)号：US20080075319A1

    公开(公告)日：2008-03-27

    申请号：US11628395

    申请日：2005-06-03

    申请人： Kenneth Kantor ,  Ioannis Kanellakopoulos ,  Alireza Jabbari

    发明人： Kenneth Kantor ,  Ioannis Kanellakopoulos ,  Alireza Jabbari

    IPC分类号： H04R9/06 ,  H04R11/02 ,  H04R1/00

    CPC分类号： H04R1/00 ,  H04R9/025 ,  H04R9/06 ,  H04R9/066 ,  H04R11/02 ,  H04R25/00 ,  H04R2209/041

    摘要： An improved electrodynamic acoustic transducer eliminates or reduces the need for flexible or elastic materials to suspend an internal magnetic element by using both static and dynamic signal-dependent magnetic fields to control its movement. In one implementation, the transducer has a magnet that moves within a surrounding tube. This tube in turn supports one or more electromagnetic coils that generate a dynamic signal-dependent magnetic field that causes the internal magnetic element to vibrate. The surrounding tube also supports one or more magnets whose location on the tube is fixed and whose magnetic fields provide appropriate restoring forces acting on the internal magnetic element. These fixed magnets may be replaced or supplemented by ferromagnetic materials. This transducer may provide sound and infrasonic vibration by coupling the internal magnetic element to other radiating elements or by being placed in close proximity to or in actual contact with the pinna or meatus of the human ear when used in headphones or earphones, for example, and it also may provide sound through the direct vibration of the air in contact with the surface of the internal magnetic element. When direct atmospheric coupling is not required, the transducer may be assembled in a sealed enclosure.

    摘要翻译： 改进的电动声学换能器通过使用静态和动态信号相关磁场来控制其运动来消除或减少对柔性或弹性材料悬挂内部磁性元件的需要。 在一个实施方案中，换能器具有在周围管内移动的磁体。 该管又支持一个或多个电磁线圈，其产生导致内部磁性元件振动的动态信号相关磁场。 周围管还支撑一个或多个磁体，其位于管上的位置是固定的，并且其磁场提供作用在内部磁性元件上的合适的恢复力。 这些固定磁体可以被铁磁材料代替或补充。 该传感器可以通过将内部磁性元件耦合到其它辐射元件或者当用于耳机或耳机时被放置在与人耳的耳廓或耳道紧密接触或实际接触的位置时，提供声音和次声振动，例如， 也可以通过与内部磁性元件的表面接触的空气的直接振动来提供声音。 当不需要直接大气耦合时，传感器可以组装在密封的外壳中。

    Method and system for robust digital subscriber loop communication
    5.
    发明授权
    Method and system for robust digital subscriber loop communication 有权
    强大的数字用户环路通信方法和系统

    公开(公告)号：US08576899B2

    公开(公告)日：2013-11-05

    申请号：US13057967

    申请日：2009-08-19

    申请人： Ioannis Kanellakopoulos ,  Amit Levy ,  Tuvia Barlev ,  Maya Bar-El ,  Amit Priebatch ,  Eitan Tsur

    发明人： Ioannis Kanellakopoulos ,  Amit Levy ,  Tuvia Barlev ,  Maya Bar-El ,  Amit Priebatch ,  Eitan Tsur

    IPC分类号： H04B1/38 ,  H04L5/16

    CPC分类号： H04B3/32 ,  H04M3/34 ,  H04M11/062

    摘要： A DSL communication system and a method for configuring a DSL communication system. The method includes training at least one anchor DSL modem transmitter to transmit information over at least one anchor line at an anchor bit rate that is determined based on an allowable tolerable noise level and a minimum allowable signal-to-noise ratio (SNR) margin; training one or more other DSL modem transmitter to transmit information over one or more other line at a bit rate that is determined by a current noise level and a target SNR margin, wherein the target SNR margin is higher than the minimum allowable SNR margin; and transmitting information by at least one trained DSL modem transmitter to at least one DSL modem receiver.

    摘要翻译： DSL通信系统和用于配置DSL通信系统的方法。 该方法包括训练至少一个锚定DSL调制解调器发射机，以基于允许的容许噪声电平和最小允许信噪比（SNR）裕度确定的锚定位速率在至少一根锚定线上传输信息; 训练一个或多个其他DSL调制解调器发送器，以由当前噪声电平和目标SNR余量确定的比特率在一个或多个其他线路上传输信息，其中所述目标SNR余量高于所述最小允许SNR余量; 以及由至少一个已训练的DSL调制解调器发射机向至少一个DSL调制解调器接收机发送信息。

    Mitigation of interference and crosstalk in communications systems
    6.
    发明授权
    Mitigation of interference and crosstalk in communications systems 有权
    减轻通信系统中的干扰和串扰

    公开(公告)号：US07978591B2

    公开(公告)日：2011-07-12

    申请号：US11694981

    申请日：2007-03-31

    申请人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    发明人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    IPC分类号： H04J1/12 ,  H04J3/10

    CPC分类号： H04L25/03006 ,  H04L25/0246 ,  H04L2025/03426

    摘要： Signals in a multi-channel, impaired communication system are post-processed at the receiver. A triangular matrix Decision Feedback Demodulator (DFD) at the receiver extracts channels without requiring delivery of receiver parameters to the transmitter. Multi-Input Multi-Output (MIMO) processing matrices and DFD parameters are computed by first applying matrix transformations to diagonalize the noise covariance matrix of the multiple channels received at the receiver. QR decompositions (i.e., decompositions into orthogonal and triangular matrices) are then applied to the main channels to obtain triangular channel matrices. The noise-diagonalizing transformations and QR decompositions are then combined to form the MIMO postprocessing matrices and DFD parameters. MIMO postprocessing matrices and DFD parameters are computed from training data and then adapted during live data transmission.

    摘要翻译： 多通道，受损的通信系统中的信号在接收机上进行后处理。 在接收器处的三角矩阵判决反馈解调器（DFD）提取信道而不需要向发射机传送接收机参数。 通过首先应用矩阵变换来对接收机接收的多个信道的噪声协方差矩阵进行对角化来计算多输入多输出（MIMO）处理矩阵和DFD参数。 然后将QR分解（即，分解成正交和三角矩阵）施加到主信道以获得三角形信道矩阵。 然后将噪声对角化变换和QR分解组合以形成MIMO后处理矩阵和DFD参数。 从训练数据计算MIMO后处理矩阵和DFD参数，然后在实时数据传输期间进行调整。

    Method and apparatus for intelligent ranging via image subtraction
    8.
    发明授权
    Method and apparatus for intelligent ranging via image subtraction 失效
    通过图像减法进行智能测距的方法和装置

    公开(公告)号：US06711280B2

    公开(公告)日：2004-03-23

    申请号：US09866072

    申请日：2001-05-25

    申请人： Oscar M. Stafsudd ,  Ioannis Kanellakopoulos ,  Phyllis R. Nelson ,  Nicholas Bambos

    发明人： Oscar M. Stafsudd ,  Ioannis Kanellakopoulos ,  Phyllis R. Nelson ,  Nicholas Bambos

    IPC分类号： G06R900

    CPC分类号： G06K9/3241 ,  G06K2209/23 ,  G06T7/586

    摘要： A method and system for ranging an object are disclosed. The method includes illuminating a field of view potentially including the object, synchronously receiving reflected signals from the field of view with and without illumination, capturing first and second images within an array, and generating a subtraction image using the images. One image is captured in the array while the other image is in the array. The first and second images include reflected signals from the field of view with and without illumination, respectively. The array includes first and second groups of lines that are unmasked and masked, respectively. In one exposure, the first group of lines is loaded with the first or second image. The image in the first group of lines is shifted into the second group. In another exposure, the first group of lines is loaded with the other image, which is shifted into the second group.

    摘要翻译： 公开了一种测距对象的方法和系统。 该方法包括照亮潜在地包括对象的视场，在有和没有照明的情况下同步地接收来自视场的反射信号，捕获阵列内的第一和第二图像，以及使用该图像生成减影图像。 一个图像被捕获在阵列中，而另一个图像在数组中。 第一和第二图像分别包括来自具有和不具有照明的视场的反射信号。 该阵列分别包括未屏蔽和屏蔽的第一组和第二组线。 在一次曝光中，第一组线条被装入第一或第二图像。 第一组线中的图像被移入第二组。 在另一曝光中，第一组线被加载另一个图像，该图像被移入第二组。

    Mitigation of Interference and Crosstalk in Communications Systems
    9.
    发明申请
    Mitigation of Interference and Crosstalk in Communications Systems 有权
    通信系统中干扰和串扰的减轻

    公开(公告)号：US20080239937A1

    公开(公告)日：2008-10-02

    申请号：US11694981

    申请日：2007-03-31

    申请人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    发明人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    IPC分类号： H04J1/12 ,  H04M3/34

    CPC分类号： H04L25/03006 ,  H04L25/0246 ,  H04L2025/03426

    摘要： Signals in a multi-channel, impaired communication system are post-processed at the receiver. A triangular matrix Decision Feedback Demodulator (DFD) at the receiver extracts channels without requiring delivery of receiver parameters to the transmitter. Multi-Input Multi-Output (MIMO) processing matrices and DFD parameters are computed by first applying matrix transformations to diagonalize the noise covariance matrix of the multiple channels received at the receiver. QR decompositions (i.e., decompositions into orthogonal and triangular matrices) are then applied to the main channels to obtain triangular channel matrices. The noise-diagonalizing transformations and QR decompositions are then combined to form the MIMO postprocessing matrices and DFD parameters. MIMO postprocessing matrices and DFD parameters are computed from training data and then adapted during live data transmission.

    摘要翻译： 多通道，受损的通信系统中的信号在接收机上进行后处理。 在接收器处的三角矩阵判决反馈解调器（DFD）提取信道而不需要向发射机传送接收机参数。 通过首先应用矩阵变换来对接收机接收的多个信道的噪声协方差矩阵进行对角化来计算多输入多输出（MIMO）处理矩阵和DFD参数。 然后将QR分解（即，分解成正交和三角矩阵）施加到主信道以获得三角形信道矩阵。 然后将噪声对角化变换和QR分解组合以形成MIMO后处理矩阵和DFD参数。 从训练数据计算MIMO后处理矩阵和DFD参数，然后在实时数据传输期间进行调整。

    Method and system for split-pair reception in twisted-pair communication systems
    10.
    发明申请
    Method and system for split-pair reception in twisted-pair communication systems 失效
    双绞线通信系统中分离对接收的方法和系统

    公开(公告)号：US20060109779A1

    公开(公告)日：2006-05-25

    申请号：US10526145

    申请日：2003-09-19

    申请人： Sunil Shah ,  Ioannis Kanellakopoulos ,  Mark Erickson

    发明人： Sunil Shah ,  Ioannis Kanellakopoulos ,  Mark Erickson

    IPC分类号： H04J3/10

    CPC分类号： H04L25/14 ,  H04B3/487 ,  H04L5/20

    摘要： A method and system are disclosed for improving the performance of a multiline transmission system by using one or more split-pair receivers in a multiline communications system to identify crosstalk on a pair of transceivers coupled to the split pair receivers, wherein each split pair receiver receives a signal including the crosstalk from each transceiver and provides a corresponding signal vector to a post processing unit, and performing MIMO post-processing on signal vectors received at a receiver from each transceiver and each split-pair receiver while minimizing crosstalk on pairs of lines in the multiline communications system with a frequency equalizer.

    摘要翻译： 公开了一种用于通过使用多行通信系统中的一个或多个分离对接收机来识别耦合到分离对接收机的一对收发机上的串扰来改善多线传输系统的性能的方法和系统，其中每个分离对接收机接收 包括来自每个收发器的串扰的信号，并且向后处理单元提供相应的信号向量，并且对来自每个收发器和每个分离对接收机的接收机处接收的信号矢量执行MIMO后处理，同时使 具有频率均衡器的多线通信系统。