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1. 发明申请

US20070121189A1 DATA TRANSMISSION DEVICES FOR COMMUNICATION FACILITIES OF A PASSIVE OPTICAL NETWORK 审中-公开
标题翻译：用于被动光网络通信设备的数据传输设备
公开(公告)号：US20070121189A1
公开(公告)日：2007-05-31
申请号：US11560360
申请日：2006-11-16
申请人： Thierry ZAMI , Dominique Chiaroni
发明人： Thierry ZAMI , Dominique Chiaroni
IPC分类号： G02F1/03 , G02F1/07
CPC分类号： H04B10/2587 , H04B10/27 , H04B10/272 , H04L7/0075 , H04L7/08 , H04L2007/047
摘要： A passive optical network comprises at least one communication facility, termed network head, coupled to at least two communication facilities, termed remote, by transmission and routing means. The network head is charged with transmitting to the remote facilities an alternation of a first portion of an optical carrier, modulated by data to be transmitted according to a chosen bit rate and lasting a first time interval, and of a second portion of this optical carrier, modulated by a clock signal at a base frequency corresponding to the bit rate and lasting a second time interval. Each remote facility is charged, on the one hand, with recovering the base frequency in the first and second received portions, and, on the other hand, with transmitting to the network head, during chosen time slots synchronized by the network head, the part which corresponds to these time slots in some at least of the second portions received successively after having overmodulated with data to be transmitted the clock signal that it contains.
摘要翻译：无源光网络包括被称为网络头的至少一个通信设施，通过传输和路由装置耦合到称为远程的至少两个通信设施。网络头被充电以向远程设施发送光载波的第一部分的交替，由根据选择的比特率并持续第一时间间隔的将被发送的数据调制，以及该光载波的第二部分，由与比特率对应的基本频率的时钟信号调制，并持续第二时间间隔。一方面，每个远程设施对第一和第二接收部分恢复基本频率进行充电，另一方面，在由网络头同步的所选择的时隙期间，向网络头发送，部分其对应于在具有要被发送的数据被过度调制的至少第二部分中的这些时隙中，所述数据被包含在其中。

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