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
Pressure roller and fixing device equipped with the same
Method for improving the performance of browser-based, formula-driven parametric objects
Heteroleptic iridium complexes as dopants
Electromagnetic probe for measuring properties of a subsurface formation
Method and apparatus for reducing power consumption used in communication system having time slots
Clock distribution circuit
Method of stimulating tissue healing
  Randomly Featured Patents
Method and apparatus for monitoring and displaying heart rate and blood pressure product information
Retainers and non-abrasive liners used in chemical mechanical polishing
Temperature adjusting device for plastics material extruding, injecting and drawing machines and cylinders of plastics material processing machines in general
Trunk lid holding device
Bonding connection between a bonding wire and a power semiconductor chip
Method for controlling driving of drum-type washing machine and apparatus thereof
Single-position signal device
Combined chair rail and chalk shelf for mounting on a wall
Sourdough compositions
Counter flow air cycle air conditioner with negative air pressure after cooling