Resources Contact Us Home
Network with a fast-switching optical core

Image Number 14 for United States Patent #8050257.

A high capacity network comprises a plurality of edge nodes with asymmetrical connections to a plurality of switch planes, each switch plane comprising fully meshed fast-switching optical switch units. Upstream wavelength channels from each source edge node connect to different switch planes in a manner which ensures that upstream wavelength channels from any two edge nodes connect to a common switch unit in at most a predefined number, preferably one, of switch planes. Thus, switch units in different switch planes connect to upstream channels from orthogonal subsets of source edge nodes. In contrast, downstream wavelength channels from a switch unit in each switch plane connect to one set of sink edge nodes. In an alternate arrangement, the upstream and downstream asymmetry may be reversed.

  Recently Added Patents
Program recording medium, image processing apparatus, imaging apparatus, and image processing method
Triple-trim reference voltage generator
Stevia formulation
Liquid formulations of carboxamide arthropodicides
Method for releasing a locking in mobile terminal and mobile terminal using the same
Regulating a supply voltage provided to a load circuit
Motorized home appliance door
  Randomly Featured Patents
Exhaust gas purifying system for an internal combustion engine
Multiplex transmission system
DVD/CD player and sound generator
System for securing a key in a vehicle
Semiconductor integrated circuit and interrupt request output method thereof
Preparation of 4-methyl-2,3,5,6-tetrafluorobenzyl alcohol
Transmission mechanism for vehicles having HST and pressure oil supply system therefor
Direct fuel injection combustion control system
Ball shaped camera housing with simplified positioning
Traveling crane