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7 条记录 (耗时 0.051 秒)

    Self-calibrating time code generator
    1.
    发明授权
    Self-calibrating time code generator 有权
    自校准时间码发生器

    公开(公告)号：US07398411B2

    公开(公告)日：2008-07-08

    申请号：US11127747

    申请日：2005-05-12

    申请人： Gregary C. Zweigle ,  Jerry J. Bennett ,  Shankar V. Achanta

    发明人： Gregary C. Zweigle ,  Jerry J. Bennett ,  Shankar V. Achanta

    IPC分类号： G06F1/12

    CPC分类号： H03L7/08 ,  G04R40/02 ,  H03L7/081

    摘要： Provided is a self-calibrating time code generator and method for generating an accurate time code (e.g., an accurate IRIG waveform). The self-calibrating time code generator includes a phase-locked loop configured to provide a generated output signal based on a phase difference between an absolute time reference signal and a compensated generated input signal, an IRIG encoder configured to couple a present time value with the generated output signal to form an IRIG waveform, a delay difference indicator configured to provide a time interval value based on a comparison of corresponding pulse edges of the generated output signal and the IRIG waveform, and a numerical delay component configured to delay the generated output signal by the time interval value to form the compensated generated input signal used to time-align the IRIG waveform with the absolute time reference signal to form the accurate IRIG waveform.

    摘要翻译： 提供了一种用于产生精确时间码（例如，准确的IRIG波形）的自校准时间码发生器和方法。 所述自校准时间码发生器包括：锁相环，被配置为基于绝对时间参考信号和经补偿的生成输入信号之间的相位差来提供所生成的输出信号; IRIG编码器，被配置为将当前时间值与 产生的输出信号以形成IRIG波形;延迟差指示器，被配置为基于所生成的输出信号和IRIG波形的相应脉冲边沿的比较来提供时间间隔值;以及数字延迟分量，被配置为延迟产生的输出信号 通过时间间隔值形成用于将IRIG波形与绝对时间参考信号进行时间对准的补偿生成输入信号，以形成准确的IRIG波形。

    Systems and Methods for Time Synchronization of IEDs via Radio Link
    4.
    发明申请
    Systems and Methods for Time Synchronization of IEDs via Radio Link 有权
    通过无线电链路对IED进行时间同步的系统和方法

    公开(公告)号：US20130157593A1

    公开(公告)日：2013-06-20

    申请号：US13327531

    申请日：2011-12-15

    申请人： Shankar V. Achanta

    发明人： Shankar V. Achanta

    IPC分类号： H04B1/40

    CPC分类号： H02H1/0061 ,  H04J3/0638 ,  H04J3/0667

    摘要： The present disclosure provides systems and methods for synchronizing the time signals of master and remote IEDs using a radio link. According to one embodiment, a master IED may transmit an adjusted time signal to a remote IED via a radio signal. The master IED may determine a propagation delay between the master IED and a remote IED. The master IED may then adjust a master time signal by the propagation delay and transmit the adjusted time signal to the remote IED. Alternatively, a remote IED may request and receive a master time signal from a master IED via a radio signal. The remote IED may then determine the propagation delay and adjust the received master time signal accordingly. According to various embodiments, the time signal of a master and remote IED may be synchronized to within at least one millisecond.

    摘要翻译： 本公开提供了使用无线电链路来同步主和远程IED的时间信号的系统和方法。 根据一个实施例，主IED可以经由无线电信号将经调整的时间信号发送到远程IED。 主IED可以确定主IED和远程IED之间的传播延迟。 然后，主IED可以通过传播延迟来调整主时间信号，并将经调整的时间信号发送到远程IED。 或者，远程IED可以经由无线电信号从主IED请求并接收主时间信号。 然后，远程IED可以确定传播延迟并相应地调整所接收的主时间信号。 根据各种实施例，主和远程IED的时间信号可以在至少一毫秒内被同步。

    Systems and methods for time synchronization of IEDs via radio link
    6.
    发明授权
    Systems and methods for time synchronization of IEDs via radio link 有权
    通过无线电链路对IED进行时间同步的系统和方法

    公开(公告)号：US09590411B2

    公开(公告)日：2017-03-07

    申请号：US13327531

    申请日：2011-12-15

    申请人： Shankar V. Achanta

    发明人： Shankar V. Achanta

    IPC分类号： H04B7/00 ,  H04B15/00 ,  H02H1/00 ,  H04J3/06

    CPC分类号： H02H1/0061 ,  H04J3/0638 ,  H04J3/0667

    摘要： The present disclosure provides systems and methods for synchronizing the time signals of master and remote IEDs using a radio link. According to one embodiment, a master IED may transmit an adjusted time signal to a remote IED via a radio signal. The master IED may determine a propagation delay between the master IED and a remote IED. The master IED may then adjust a master time signal by the propagation delay and transmit the adjusted time signal to the remote IED. Alternatively, a remote IED may request and receive a master time signal from a master IED via a radio signal. The remote IED may then determine the propagation delay and adjust the received master time signal accordingly. According to various embodiments, the time signal of a master and remote IED may be synchronized to within at least one millisecond.

    摘要翻译： 本公开提供了使用无线电链路来同步主和远程IED的时间信号的系统和方法。 根据一个实施例，主IED可以经由无线电信号将经调整的时间信号发送到远程IED。 主IED可以确定主IED和远程IED之间的传播延迟。 然后，主IED可以通过传播延迟来调整主时间信号，并将经调整的时间信号发送到远程IED。 或者，远程IED可以经由无线电信号从主IED请求并接收主时间信号。 然后，远程IED可以确定传播延迟并相应地调整所接收的主时间信号。 根据各种实施例，主和远程IED的时间信号可以在至少一毫秒内被同步。