Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-01-31
2006-01-31
Nguyen, Brian (Department: 2661)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S465000, C725S106000
Reexamination Certificate
active
06993016
ABSTRACT:
Methods and apparatus are provided for tunneling (transparently transmitting) over a packet network, from a source to a destination, the spectrum of one or more bandpass channels individually selected from a larger spectrum at the source. Each channel is selected, translated to baseband (using sampling techniques), digitized, framed, merged with other digital services, transmitted (along with associated attribute information) using packet techniques, and later reconstructed. The present invention provides a selective and efficient use of available bandwidth, in that it is not necessary to transmit the entire spectrum, when only one or few portions of the spectrum are desired. This in turn, reduces bandwidth requirements all along the transmission path and at the source and destination. The reduced bandwidth requirements have associated reductions in power and costs.
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Liva Valentino
Sharma Alok
Smith Lance
Harrity & Snyder LLP
Juniper Networks, Inc.
Nguyen Brian
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