Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels
Reexamination Certificate
2011-04-12
2011-04-12
Ho, Duc C (Department: 2465)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via frequency channels
C370S389000, C370S401000, C370S486000, C725S129000
Reexamination Certificate
active
07924883
ABSTRACT:
The present system uses point-to-point data links between intelligent network elements located in the feeder/distribution network to provide reliable, secure, bi-directional broadband access. Digital signals are terminated at the intelligent network elements, switched and regenerated for transmission across additional upstream or downstream data links as needed to connect a home to a headend or router. The intelligent network elements can be co-located with or replace the standard network elements to take advantage of existing network configurations. A tree-and-branch network architecture is therefore established in which each intelligent network element is assigned a routing ID employed in the point-to-point transmissions while leaving legacy analog signals unimpeded. In this manner, the data links are made over relatively short runs of coax cable, which can provide greater bandwidth than the typical end-to-end feeder/distribution connection between a home and the headend or optical network unit.
REFERENCES:
patent: 6253235 (2001-06-01), Estes
patent: 2006/0080106 (2006-04-01), Calderone et al.
Dravida Subrahmanyam
Gupta Dey V.
Peralta Frederick
Rege Kiran M.
Tandon Manas
Bernard Christopher L.
Brown Tyler S.
Ciena Corporation
Clements Bernard PLLC
Ho Duc C
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