Title:
【発明の名称】光通信およびネットワーク・システムにおけるビット同期の方法および装置
Document Type and Number:
Japanese Patent JP2003505960
Kind Code:
A
Abstract:
An apparatus and method are provided for bit synchronization in an optical time division multiplexed communication system. The apparatus is couplable to an optical gate, such as an optical demultiplexer. The apparatus includes a programmable optical delay line couplable to an input clock; an optical synchronizer coupled to the programmable optical delay line and couplable to the optical gate; and a processor coupled to the programmable optical delay line and to the optical synchronizer. The processor includes program instructions to track bit synchronization between a clock pulse and a selected data bit during a communication session; and when a bit tracking range is approaching a predetermined limit, the processor having further instructions to interrupt the communication session, return the bit tracking range to a zero offset and correspondingly adjust a programmable delay, and resume the communication session.
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Inventors:
Davidson, Howard El
Application Number:
JP2001511724A
Publication Date:
February 12, 2003
Filing Date:
May 28, 1999
Export Citation:
Assignee:
Sun Microsystems, Inc.
International Classes:
G02B6/42; H04B10/00; H04B10/556; H04J3/00; H04L7/00; H04L7/02; H04J14/08; H04L7/10; (IPC1-7): H04L7/02; G02B6/42; H04B10/00; H04J3/00
Attorney, Agent or Firm:
Masaki Yamakawa