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    Method and apparatus to provide simultaneous sensing and transmission for dynamic spectrum access
    3.
    发明授权
    Method and apparatus to provide simultaneous sensing and transmission for dynamic spectrum access 有权
    提供用于动态频谱接入的同时感测和传输的方法和装置

    公开(公告)号：US09237043B1

    公开(公告)日：2016-01-12

    申请号：US14475931

    申请日：2014-09-03

    申请人： Raytheon Company

    发明人： Mark J. Beals ,  David E. Mussmann

    IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08 ,  H04L25/03 ,  H04B1/12

    CPC分类号： H04L25/03828 ,  H04B1/126 ,  H04B1/525

    摘要： A multicarrier radio frequency (RF) transceiver implementing dynamic spectrum access (DSA) is capable of sensing a spectral environment and transmitting an RF signal at the same time. The transceiver can cancel an RF transmit signal component within a composite receive signal using a combination of analog and digital cancellation. In one embodiment, analog RF cancellation is performed to reduce the level of a transmit signal component of a composite receive signal before the signal reaches an RF receiver. The RF cancellation may be used to reduce the transmit signal component to a level that maintains the linear operation of the RF receiver. Digital cancellation may be performed to reduce transmit signal remnants within an output signal of the RF receiver. Digital cancellation may be performed on a subcarrier-by-subcarrier basis in some implementations.

    摘要翻译： 实现动态频谱接入（DSA）的多载波射频（RF）收发机能够同时感测频谱环境和发射RF信号。 收发器可以使用模拟和数字消除的组合来消除复合接收信号内的RF发射信号分量。 在一个实施例中，执行模拟RF消除以在信号到达RF接收器之前降低复合接收信号的发射信号分量的电平。 RF取消可以用于将发送信号分量减小到维持RF接收机的线性操作的水平。 可以执行数字消除以减少RF接收机的输出信号内的发射信号残余。 在一些实现中，可以在逐副载波的基础上执行数字消除。

    Circuits and methods for processing signals generated by a circular vertical hall (CVH) sensing element in the presence of a multi-pole magnet
    5.
    发明授权
    Circuits and methods for processing signals generated by a circular vertical hall (CVH) sensing element in the presence of a multi-pole magnet 有权
    用于在存在多极磁体的情况下处理由圆形垂直霍尔（CVH）感测元件产生的信号的电路和方法

    公开(公告)号：US09541424B2

    公开(公告)日：2017-01-10

    申请号：US15186433

    申请日：2016-06-18

    申请人： Allegro MicroSystems, LLC

    发明人： Andreas P. Friedrich ,  Andrea Foletto

    IPC分类号： G01R33/07 ,  G01D5/14

    CPC分类号： G01D5/145 ,  G01B7/30 ,  G01D5/2451 ,  G01R33/0023 ,  G01R33/007 ,  G01R33/072 ,  G01R33/077

    摘要： Described embodiments provide a magnetic field sensor has a circular vertical Hall (CVH) sensing element with a plurality of vertical Hall elements disposed over a common implant region in a substrate. The magnetic field sensor generates output signals responsive to a magnetic field generated by a multi-pole magnet having a plurality of north poles and also a plurality of south poles. An angle sensor generates an angle signal representative of an angle of a direction component of the magnetic field. A pole pair counter generates a count signal representative of a count of a number of the pole pairs of the multi-pole magnet that move past the CVH sensing element. An angle interpolation module generates a reconstructed angle signal representative of an angular position of the multi-pole magnet relative to the CVH sensing element based upon the count signal and the angle signal. Corresponding methods are also described.

    摘要翻译： 描述的实施例提供一种具有圆形垂直霍尔（CVH）感测元件的磁场传感器，其具有设置在基板中的公共注入区域上的多个垂直霍尔元件。 磁场传感器响应于具有多个北极以及多个南极的多极磁铁产生的磁场产生输出信号。 角度传感器产生表示磁场的方向分量的角度的角度信号。 极对计数器产生表示移动经过CVH感测元件的多极磁体的极对数的计数的计数信号。 角度插补模块基于计数信号和角度信号产生代表多极磁体相对于CVH感测元件的角位置的重建角度信号。 还描述了相应的方法。

    Method and system for characterizing an array antenna using near-field measurements
    7.
    发明授权
    Method and system for characterizing an array antenna using near-field measurements 有权
    使用近场测量来表征阵列天线的方法和系统

    公开(公告)号：US09331751B2

    公开(公告)日：2016-05-03

    申请号：US14451466

    申请日：2014-08-05

    申请人： Raytheon Company

    发明人： Thomas V. Sikina ,  Jack J. Schuss ,  Joseph E. Hilliard, Jr.

    IPC分类号： H04B5/00 ,  G01D18/00

    CPC分类号： H04B5/0043 ,  G01D18/00 ,  H01Q3/267 ,  H04B7/0865 ,  H04B17/0085 ,  H04B17/21

    摘要： Described embodiments calibrate an array antenna using near-field antenna measurements individually for each antenna element in an antenna under test (AUT). A signal is received at a first AUT antenna element from an antenna probe assembly by transmitting from the antenna probe assembly at each of multiple known probe locations in a near-field of the AUT. A signal is received at each probe location by transmitting from the first antenna element of the AUT to the antenna probe assembly. The received signals are combined into a combined signal for the first antenna element that de-correlates multi-path in the combination result. The combined signal is processed to generate a calibration coefficient for the first AUT antenna element. Remote boundary condition (RBC) testing is performed to reduce temporal instability. The multiple known probe locations lie on one of the following: a planar surface, a cylindrical surface, and a spherical surface.

    摘要翻译： 所描述的实施例使用对于被测天线（AUT）中的每个天线元件单独使用近场天线测量来校准阵列天线。 在天线探头组件的第一AUT天线元件处，通过在天线探头组件中在AUT的近场中的多个已知探测位置的每一个处发送信号。 通过从AUT的第一天线元件发送到天线探针组件，在每个探测位置处接收信号。 接收到的信号被组合成用于第一天线元件的组合信号，该组合信号使组合结果中的多路径不相关。 处理组合信号以产生第一AUT天线元件的校准系数。 进行远程边界条件（RBC）测试以减少时间不稳定性。 多个已知的探针位置位于以下之一：平坦表面，圆柱形表面和球形表面。

    Method and apparatus for object/material detection
    8.
    发明授权
    Method and apparatus for object/material detection 有权
    物体/材料检测方法和装置

    公开(公告)号：US09223045B2

    公开(公告)日：2015-12-29

    申请号：US13480027

    申请日：2012-05-24

    申请人： Waseem Naqvi

    发明人： Waseem Naqvi

    IPC分类号： G08B13/00 ,  G01V3/12

    CPC分类号： G01V3/12

    摘要： Methods and apparatus to compare the size of a target from the first sensor information with the size of the target from the second sensor information to determine whether an anomaly exists based upon the size comparison. In one embodiment, the size of the target from the first sensor information is affected by dielectric constants for at least one material of interest associated with the target.

    摘要翻译： 将来自第一传感器信息的目标的大小与来自第二传感器信息的目标大小进行比较的方法和装置，以基于尺寸比较确定是否存在异常。 在一个实施例中，来自第一传感器信息的目标的大小受到与目标相关联的至少一种感兴趣的材料的介电常数的影响。

    Using storage defragmentation function to facilitate system checkpoint
    10.
    发明授权
    Using storage defragmentation function to facilitate system checkpoint 有权

    公开(公告)号：US10152381B1

    公开(公告)日：2018-12-11

    申请号：US15498670

    申请日：2017-04-27

    申请人： EMC IP Holding Company LLC

    发明人： Felix Shvaiger ,  Anton Kucherov ,  Zvi Schneider ,  Xiangping Chen ,  Ying Hu

    IPC分类号： G06F12/00 ,  G06F11/14 ,  G06F3/06 ,  G06F13/40

    摘要： A computer-implemented method is provided for a storage system comprising a processor in operable communication with a storage device that is configured into a plurality of respective regions of storage space. A first defragmentation process is performed on at least a first region of the plurality of respective regions of storage space to free a first portion of storage space in the a respective first region, where the freed first portion is reserved for user data and metadata associated with I/O requests to the storage system that are generated during a first operation running on the storage system. The storage system is configured to ensure that, during the first operation, user data and metadata are routed towards the first freed portion and kept separate from a set of system checkpoint information, associated with a first state of the storage system, stored in a protected portion of storage space.