公开(公告)号：US20030137997A1

公开(公告)日：2003-07-24

申请号：US10132086

申请日：2002-04-24

申请人： RadioFrame Networks, Inc.

发明人： Pierce V. Keating

IPC分类号： H04J003/06

CPC分类号： H04J3/0667

摘要： A reference frequency is distributed through a packet-based network to remote elements in a system. Timing packets are periodically sent from a master timing element, to be received by at least one peripheral timing element. Echo messages are sent to the master timing element by each peripheral timing element after a unique delay, in response to the reception of a timing packet. Loopback delay measurements are included in each timing packet for each peripheral timing element. Each peripheral timing element locks a loop using only timing packets which incur a minimum loopback delay.

摘要翻译： 参考频率通过基于分组的网络分发到系统中的远程元件。 定时分组从主定时元件周期性地发送，由至少一个外围定时元件接收。 响应于定时分组的接收，回波消息由唯一延迟之后的每个外围定时元件发送到主定时元件。 环路延迟测量包括在每个周期定时元件的每个定时分组中。 每个外围定时元件仅使用产生最小环回延迟的定时分组来锁定循环。