Bus architecture and access method for plastic waveguide

    公开(公告)号:US09712339B2

    公开(公告)日:2017-07-18

    申请号:US14260339

    申请日:2014-04-24

    Abstract: The present disclosure relates to a system that uses a switch to convey wireless signals between a plurality of electronic devices interconnected by dielectric waveguides. In some embodiments, the system includes a plurality of electronic devices respectively having a transceiver element that generates a wireless signal that transmits a data packet. A switch receives the wireless signal from a first one of the plurality of electronic devices and re-transmits the wireless signal to a second one of the plurality of electronic devices. A plurality of dielectric waveguides convey the wireless signal between the plurality of electronic devices and the switch. Respective dielectric waveguides have a dielectric material disposed at a location between one of the plurality of electronic devices and the switch. Using the switch to convey wireless signals between the plurality of electronic devices provides a system that has a low wireless signal attenuation and reduced number of transceivers.

    Current loop sensor interface using a terminated symmetrical physical layer

    公开(公告)号:US09688221B2

    公开(公告)日:2017-06-27

    申请号:US14828903

    申请日:2015-08-18

    Abstract: A sensor system or a sensor bus comprises a plurality of sensors coupled together by a bus to a controller for sensing physical parameters and responding to changes of the physical parameters. The bus comprises a two wire bus, with a first wire and a second wire, configured to communicate supply signals to the plurality of sensors and data communication signals generated by current modulate signals from the plurality of sensors or the controller. The plurality of sensors and the controller comprise variable current sources. The variable current sources of the sensors generate data communication signals in a first frequency range, while the variable currents sources of the controller and sensors regulate the supply signals from the bus in a different frequency range. A termination network having termination, dividers at both ends of the bus, match the load impedances and the line impedances of the bus within the first frequency range, which is about five to ten times larger than the second frequency range.

    USING CARTESIAN COORDINATES FOR POSITION DETECTION WITH A MAGNETIC SENSOR

    公开(公告)号:US20170089726A1

    公开(公告)日:2017-03-30

    申请号:US14865691

    申请日:2015-09-25

    CPC classification number: G01D5/145 G01D5/16 G01D5/2006

    Abstract: A magnetic sensor, may sense a first magnetic field component corresponding to a first axis of a magnetic field produced by a magnet. The magnetic sensor may sense a second magnetic field component corresponding to a second axis of the magnetic field. The magnetic sensor may determine information that defines potential positions of a movable object associated with the magnet. Each potential position, of the potential positions, may be defined by a first magnetic field range for the first magnetic field component and a second magnetic field range for the second magnetic field component. The magnetic sensor may identify a position of the movable object based on the first magnetic field component, the second magnetic field component, and the information that defines the potential positions. The magnetic sensor may provide an output based on identifying the position of the movable object.

    Off-center angle measurement system

    公开(公告)号:US09606194B2

    公开(公告)日:2017-03-28

    申请号:US14286607

    申请日:2014-05-23

    CPC classification number: G01D5/145 G01D5/165 G01R33/06

    Abstract: A method for measuring an angular position of a rotating shaft, the method including providing a magnetic field which rotates with the shaft about an axis of rotation, positioning an integrated circuit having first and second magnetic sensing bridges within the magnetic field at a radially off-center position from the axis of rotation, the first and second magnetic sensing bridges respectively providing first and second signals representative of first and second magnetic field directions, the integrated circuit having a set of adjustment parameters for modifying attributes of the first and second signals, modifying values of the set of adjustment parameters until errors in the first and second signals are substantially minimized, and determining an angular position of the shaft based on the first and second signals.

    Current Loop Sensor Interface Using a Terminated Symmetrical Physical Layer
    90.
    发明申请
    Current Loop Sensor Interface Using a Terminated Symmetrical Physical Layer 有权
    使用终止的对称物理层的电流环路传感器接口

    公开(公告)号:US20170050588A1

    公开(公告)日:2017-02-23

    申请号:US14828903

    申请日:2015-08-18

    Abstract: A sensor system or a sensor bus comprises a plurality of sensors coupled together by a bus to a controller for sensing physical parameters and responding to changes of the physical parameters. The bus comprises a two wire bus, with a first wire and a second wire, configured to communicate supply signals to the plurality of sensors and data communication signals generated by current modulate signals from the plurality of sensors or the controller. The plurality of sensors and the controller comprise variable current sources. The variable current sources of the sensors generate data communication signals in a first frequency range, while the variable currents sources of the controller and sensors regulate the supply signals from the bus in a different frequency range. A termination network having termination, dividers at both ends of the bus, match the load impedances and the line impedances of the bus within the first frequency range, which is about five to ten times larger than the second frequency range.

    Abstract translation: 传感器系统或传感器总线包括通过总线耦合到控制器的多个传感器,用于感测物理参数并响应物理参数的变化。 总线包括两线总线,其具有第一线和第二线,被配置为向多个传感器传送供电信号以及通过来自多个传感器或控制器的当前调制信号产生的数据通信信号。 多个传感器和控制器包括可变电流源。 传感器的可变电流源产生第一频率范围内的数据通信信号,而控制器和传感器的可变电流源调节来自不同频率范围内总线的电源信号。 具有终端的终端网络,总线两端的分频器将总线的负载阻抗和线路阻抗匹配在第一频率范围内,该频率比第二频率范围大约五到十倍。

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