Method and apparatus for automatically upgrading passive...

Details Method and apparatus for automatically upgrading passive... Method and apparatus for automatically upgrading passive...

2006-04-10

2009-10-27

Vanderpuye, Ken N (Department: 2613)

Optical communications

Multiplex

Broadcast and distribution system

C398S066000, C398S070000, C398S071000, C398S072000, C398S098000, C398S099000, C398S100000

Reexamination Certificate

active

07609967

ABSTRACT:
An apparatus automatically maintains bi-directional communication between an optical network unit (ONU) and a central office (CO) in a passive optical network (PON) when the CO changes from a first PON mode to a second PON mode. The apparatus senses a PON mode relating to downstream data flow from the CO to the ONU; and upon detecting a change in the PON mode from the first PON mode to the second PON mode, synchronizes the ONU to operate according to the downstream and upstream configurations of the second PON mode.

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U.S. Appl. No. 11/238,022, filed Sep. 29, 2005, Specifications attached.

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