Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Reexamination Certificate
2006-04-07
2009-10-06
Lugo, David B (Department: 2611)
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
C375S376000
Reexamination Certificate
active
07599460
ABSTRACT:
A device including a line interface for additionally installing a line is installed in a terminal repeater device which takes a work and protection redundancy configuration based on a criterion such as SONET, SDH, or the like. Within the device additionally installed, the clocks supplied from work and protection devices are each compared. The respective clocks are variably delayed based on the comparison result so as to allow the device additionally installed to perform clock phase control as to the work and protection lines.
REFERENCES:
patent: 6934306 (2005-08-01), Park
patent: 61-270938 (1986-12-01), None
patent: 3-38128 (1991-02-01), None
patent: 5-2438 (1993-01-01), None
patent: 10-240375 (1998-09-01), None
Maeda Eiji
Matsuo Hiroyuki
Fujitsu Limited
Katten Muchin & Rosenman LLP
Lugo David B
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