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    • 5. 发明申请
    • Solenoidal hall effects current sensor
    • 电磁场效应电流传感器
    • US20060290340A1
    • 2006-12-28
    • US11168899
    • 2005-06-27
    • Jonathan Shapiro
    • Jonathan Shapiro
    • G01R33/07
    • H05G1/265
    • A device for measuring anode tube current or filament current in an X-ray tube, comprising a coil of wire wrapped around an insulating tube to generate a solenoidal magnetic field, one or more pieces of magnetic material and insulating material located within the tube (which magnetic elements may have their electrical potential stabilized by a resistive voltage divider), and a Hall Effect current sensor (HECS) located at the far end of the tube and insulated from the magnetic material. The output of the Hall Effects sensor is connected to an amplifier circuit, and a secondary coil of wire is used to capture the high frequency component of the magnetic signal. The secondary coil is connected to a current amplifier circuit which is followed by a high pass filter to only provide components above the cross over frequency of the hall sensor. The two signals are combined with an amplifier to provide a broad band signal that may be viewed by a current amplifier.
    • 一种用于测量X射线管中的阳极管电流或细丝电流的装置,包括缠绕在绝缘管周围以产生螺线管磁场的线圈,位于管内的一个或多个磁性材料和绝缘材料(其中 磁性元件可能由电阻分压器稳定其电位),以及霍尔效应电流传感器(HECS),位于管的远端并与磁性材料绝缘。 霍尔效应传感器的输出连接到放大器电路,并且使用二次线圈来捕获磁信号的高频分量。 次级线圈连接到电流放大器电路,其后面是高通滤波器,以仅在霍尔传感器的交叉频率上提供组件。 两个信号与放大器组合以提供可由电流放大器观看的宽带信号。
    • 6. 发明授权
    • Device access controller for virtual video/keyboard/mouse input/output
for remote system management and maintenance
    • 用于虚拟视频/键盘/鼠标输入/输出的设备访问控制器,用于远程系统管理和维护
    • US5878248A
    • 1999-03-02
    • US661571
    • 1996-06-11
    • Michael TehranianBrian MartinMichael GiancioppoJonathan ShapiroSheldon P. GringortenPaul D. Linton
    • Michael TehranianBrian MartinMichael GiancioppoJonathan ShapiroSheldon P. GringortenPaul D. Linton
    • G06F3/038G06F3/14G06F15/16
    • G06F3/038G06F3/1454
    • A device access controller residing in a first computer system for transferring virtual inputs and outputs representing operations of the first system between the first system and a second system. The device access controller includes a video controller for performing video display operations, a video memory for storing video data representing operations of the first system, a network controller for transferring information between the first system and the second system, a controller processor, and a device access controller bus interconnecting the video controller, the network controller and the processor. A video interface is connected between the first system bus and the device access controller bus for receiving video information including video data and video write addresses from the first system bus and into the video memory and controller and the controller processor and network controller are responsive to the writing of video data into the video memory for reading the video information including the video data from the video memory and the video data write addresses from the video controller registers and transmitting the video information including the video data and the video data write addresses to the second system. The device access controller further includes a keyboard interface, a disk interface, and a serial interface operating in manners generally analogous to the video interface for corresponding communicating corresponding data between the first and second systems.
    • 驻留在第一计算机系统中的设备访问控制器,用于传送表示第一系统和第二系统之间的第一系统的操作的虚拟输入和输出。 设备访问控制器包括用于执行视频显示操作的视频控制器,用于存储表示第一系统的操作的视频数据的视频存储器,用于在第一系统和第二系统之间传送信息的网络控制器,控制器处理器和设备 连接视频控制器,网络控制器和处理器的访问控制器总线。 视频接口连接在第一系统总线和设备访问控制器总线之间,用于从第一系统总线接收包括视频数据和视频写入地址的视频信息,并进入视频存储器和控制器,并且控制器处理器和网络控制器响应于 将视频数据写入视频存储器,用于从视频控制器寄存器读取包括来自视频存储器的视频数据的视频信息和视频数据写入地址,并将包括视频数据和视频数据写入地址的视频信息发送到第二个 系统。 设备访问控制器还包括键盘接口,磁盘接口和串行接口,其操作方式大致类似于视频接口,用于在第一和第二系统之间传送对应的数据。