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
Keypoint descriptor generation by complex wavelet analysis
Content display monitor
Method and system for generating and displaying an interactive dynamic graph view of multiply connected objects
Matching engine for comparing data feeds with user profile criteria
Method of and apparatus for laser drilling holes with improved taper
Alternate source programming
Methods of prognosing a rheumatoid arthritis remission phenotype
  Randomly Featured Patents
Magnetic orthodontic torquing appliance
Apparatus for real time two-dimensional scaling of a digital image
Digital video processing system with mixing prefilter
Recreational vehicle tail light
Steering control apparatus
Bidirectional power conversion with multiple control loops
Impact position marker for ordinary or simulated shooting
Walking assistance device
Press for producing coated-core tablets
Audio signal compression and decompression utilizing amplitude, frequency, and time information