发明授权
US08837532B2 Frame transmission device and synchronization method 有权
帧传输设备和同步方法

  • 专利标题: Frame transmission device and synchronization method
  • 专利标题(中): 帧传输设备和同步方法
  • 申请号: US13600990
    申请日: 2012-08-31
  • 公开(公告)号: US08837532B2
    公开(公告)日: 2014-09-16
  • 发明人: Masatake Miyabe
  • 申请人: Masatake Miyabe
  • 申请人地址: JP Kawasaki
  • 专利权人: Fujitsu Limited
  • 当前专利权人: Fujitsu Limited
  • 当前专利权人地址: JP Kawasaki
  • 代理机构: Staas & Halsey LLP
  • 优先权: JP2011-248517 20111114
  • 主分类号: H04J3/06
  • IPC分类号: H04J3/06 H04L12/26
Frame transmission device and synchronization method
摘要:
A frame transmission device includes: a clock section; a path control section to switch a plurality of transmission paths for exchanging a time synchronization frame with a node device that measures a reference time; a fluctuation estimation section to set a fluctuation estimate of a transmission delay of the time synchronization frame on each of the plurality of transmission paths; and a time synchronization section to synchronize the clock section to the reference time in accordance with a time synchronization frame exchanged on a selected transmission path selected from among the plurality of transmission paths based on the fluctuation estimate.
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