Optical communications – Multiplex – Optical local area network
Reexamination Certificate
2007-10-09
2007-10-09
Tran, Dzung (Department: 2613)
Optical communications
Multiplex
Optical local area network
C398S059000, C398S066000
Reexamination Certificate
active
11216820
ABSTRACT:
An architecture for facilitating wavelength-specific and packet-switched routing comprises a primary metropolitan fiber ring, a primary distribution/aggregation node in the primary metropolitan fiber ring and a local service domain further comprising a secondary aggregation node in communication with the primary distribution/aggregation node. A network to provide local metropolitan switching and routing and broadband local access distribution described in terms of its component layers comprises a distribution/aggregation routing layer that interfaces with a primary fiber metropolitan ring and a local customer primary distribution/aggregation node via transport branches of a mesh architecture, a local distribution and routing layer that routes specific wavelengths and newly assigned wavelengths to and from a customer's premises and a cross-connect layer that handles customer specific wavelength and packet routing via one of fiber, millimeter wave radio and free space optical communications.
REFERENCES:
patent: 6512614 (2003-01-01), Saleh et al.
patent: 6973269 (2005-12-01), Britz et al.
patent: 2002/0191250 (2002-12-01), Graves et al.
Britz David M.
Dodley Jeevan P.
Sherman Matthew J.
AT&T Corp.
Tran Dzung
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