Resources Contact Us Home
System for switching data using dynamic scheduling

Image Number 8 for United States Patent #7218637.

An architecture and related systems for improving the performance of non-blocking data switching systems. In one embodiment, a switching system includes an optical switching core coupled to a plurality of edge units, each of which has a set of ingress ports and a set of egress ports. The switching system also contains a scheduler that maintains two non-blocking data transfer schedules, only one of which is active at a time. Data is transferred through the switching system according to the active schedule. The scheduler monitors the sufficiency of data transferred according to the active schedule and, if the currently active schedule is insufficient, the scheduler recomputes the alternate schedule based on demand data received from the edges/ports and activates the alternate schedule. A timing mechanism is employed to ensure that the changeover to the alternate schedule is essentially simultaneous among the components of the system.

  Recently Added Patents
Method and device for peer arrangement in single substream upload P2P overlay networks
Manufacturing method for semiconductor device carrier and semiconductor package using the same
Circuit design approximation
Coupling device having piercing member
Image decolorizing device
Push-up bar
Semiconductor device including insulating layer of cubic system or tetragonal system
  Randomly Featured Patents
System for agglomerating wet fiber strand segments
Simulated bone or tissue manipulation
Time skewing arrangement for operating memory in synchronism with a data processor
Cosmetic emulsions containing uncoated silicone elastomers and non silicone treated pigments
Disk drive device and centering members therefor
Drive train, particularly for motor vehicles
Four-wheel steering control system for vehicle
Telecommunication connectors and apparatus for mounting the same
Light emitting device
Unitary matrix, valve and fan housing for energy recovery