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
Encoding and/or decoding memory devices and methods thereof
Quantum dot template for fast and simultaneous detection of different infectious agents
Indexing, relating and managing information about entities
Electronic device including predicted frequency error estimation of a voltage controlled oscillator and related methods
Flame-proofed thermoplastic compositions
Nonvolatile semiconductor memory device and method for manufacturing the same
Scalable pixel coverage function-map
  Randomly Featured Patents
Method of manufacturing semiconductor device including a step of forming a silicide layer, and semiconductor device manufactured thereby
Lanyard assembly for audio device
System and method for flexible coding, modulation, and time slot allocation in a radio telecommunications network
Screw assembly with torque determination
Light recording medium
Fibers and fabrics incorporating lower melting propylene polymers
Preformed polymer sheet in combination with the anode of electrochemical cells
Master loading and unloading apparatus for a lithographic printing machine
Fuel gas conditioning system with scissor baffles
Magnetically actuated rising stem valve