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118 条记录 (耗时 0.04 秒)

    Communicating with an Implanted Wireless Sensor
    24.
    发明申请
    Communicating with an Implanted Wireless Sensor 有权
    与移植无线传感器通信

    公开(公告)号：US20110181297A1

    公开(公告)日：2011-07-28

    申请号：US13078091

    申请日：2011-04-01

    申请人： James Joy ,  Jason Kroh ,  Michael Ellis ,  Mark Allen ,  Wilton Pyle

    发明人： James Joy ,  Jason Kroh ,  Michael Ellis ,  Mark Allen ,  Wilton Pyle

    IPC分类号： G01R27/32 ,  G01R35/00

    CPC分类号： G01R23/12 ,  A61B5/0002 ,  A61B5/0031 ,  A61B5/05 ,  A61B5/076 ,  A61B2560/0219 ,  A61B2560/0223 ,  G01D21/00 ,  G01F15/066 ,  G01R23/145

    摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.

    摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。

    Coupling loop
    25.
    发明授权
    Coupling loop 有权
    耦合回路

    公开(公告)号：US07936174B2

    公开(公告)日：2011-05-03

    申请号：US12545166

    申请日：2009-08-21

    申请人： Michael Ellis ,  Jason Kroh ,  Donald Miller

    发明人： Michael Ellis ,  Jason Kroh ,  Donald Miller

    IPC分类号： G01R27/28

    CPC分类号： A61B5/02014 ,  A61B5/0031 ,  A61B5/064 ,  A61B5/07 ,  A61B2560/0219 ,  H01B11/20 ,  H04B5/0043 ,  Y10S128/903

    摘要： A coupling loop or antenna is provided that can be used with a system that determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. In one embodiment multiple energizing loops energize an implanted sensor and a sensor coupling loop connected to an input impedance that is at least two times greater than the inductance of the sensor coupling loop receives the sensor signal.

    摘要翻译： 提供耦合环路或天线，其可以与通过调节激励信号的相位和频率来确定传感器的谐振频率的系统一起使用，直到通电信号的频率与传感器的谐振频率匹配。 在一个实施例中，多个激励环路激励植入的传感器，并且连接到至少比传感器耦合回路的电感大两倍的输入阻抗的传感器耦合回路接收传感器信号。

    Preventing a false lock in a phase lock loop
    26.
    发明授权
    Preventing a false lock in a phase lock loop 有权
    防止锁相环中的假锁

    公开(公告)号：US07932732B2

    公开(公告)日：2011-04-26

    申请号：US12466595

    申请日：2009-05-15

    申请人： Michael Ellis ,  Jason Kroh

    发明人： Michael Ellis ,  Jason Kroh

    IPC分类号： G01R27/32 ,  G01R23/12 ,  H03L7/06

    CPC分类号： G01R23/12 ,  A61B5/0002 ,  A61B5/0031 ,  A61B5/05 ,  A61B5/076 ,  A61B2560/0219 ,  A61B2560/0223 ,  G01D21/00 ,  G01F15/066 ,  G01R23/145

    摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.

    摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。

    Retractable Arm Assembly For Milking Cows
    30.
    发明申请
    Retractable Arm Assembly For Milking Cows 审中-公开
    挤奶牛的伸缩臂组件

    公开(公告)号：US20080006209A1

    公开(公告)日：2008-01-10

    申请号：US11758446

    申请日：2007-06-05

    申请人： John Bowers ,  Russell Kolstad ,  David Luzader ,  Braedyn Smith ,  Michael Ellis

    发明人： John Bowers ,  Russell Kolstad ,  David Luzader ,  Braedyn Smith ,  Michael Ellis

    IPC分类号： A01J5/00

    CPC分类号： A01J5/017

    摘要： A retractable arm assembly for use in positioning a milker arm near the teats of a cow is disclosed. The retractable arm assembly allows a milker claw to be stored above a milking platform in a clean, safe position, and then automatically extended to the milking position and maintained in that position until the milker claw has been removed from the teats of the cow. The retractable arm assembly includes a movable milker arm having an interior chamber for receiving a chain to which the milker claw attaches. A lever arm connected to the milker arm faciliates movement of the milker arm in a downward and outward path around and behind the cow's rear leg. Both the chain and the milker arm can be selectively extended and retracted.

    摘要翻译： 公开了一种用于定位奶牛乳头附近的挤奶臂的伸缩臂组件。 可伸缩臂组件允许将挤奶爪存储在挤奶平台上方处于干净，安全的位置，然后自动延伸到挤奶位置并保持在该位置，直到奶嘴爪已经从奶牛的奶头移除。 可伸缩臂组件包括可移动的挤奶臂，其具有用于接收奶嘴爪附接到的链的内部腔室。 连接到挤奶器臂的杠杆臂使得奶牛臂的向后和向外的路径中的奶牛的后腿的后方移动。 链条和挤奶臂都可以选择性地延伸和缩回。