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
Linear transformer power supply
Method and apparatus for controlling the use of data stored on a media sample
Intralevel conductive light shield
Diazeniumdiolated phosphorylcholine polymers for nitric oxide release
Television receiver
Controller for internal combustion engine
Bipolar transistor with diffused layer between deep trench sidewall and collector diffused layer
  Randomly Featured Patents
Rear panel for a cargo van
Collapsible ring binder and uses thereof
Expandable vertebral device with cam lock
Semiconductor device
Aggregate organic light emitting diode devices with improved operational stability
Oily inkjet ink
Process for determining optimum grinding conditions
Ink-jet recording head
Lead-acid battery construction
Image forming apparatus having at least two-color image print function and method for controlling the same