Patent ID: 6137807
Filing Date: 2000-10-24
Classification: H04L,H04Q

Abstract:
A digital switching system for coupling data between a plurality of external signal sources each having a respective signal protocol from at least two unique signal protocols, said system comprising:a plurality of input processor subsystems coupled for receiving and processing said data from the signal sources to convert the data from the respective one of the unique signal protocols into cells for output;a data multiplexer coupled to the output of each said input subsystems for multiplexing a selected one of the cells from said input subsystem to provide a multiplexed data output;an addressable queue memory comprised of multiple simultaneously accessible memories for storing and retrieving the multiplexed data in the addressable memory;a queue controller coupled to said data multiplexer output and to the addressable memory for creating and managing a plurality of memory queues in the addressable memory for selectively storing and retrieving said multiplexed data in the addressable memory;a plurality of output processors, each coupled to a respective one of the external signal sources; anda data demultiplexer coupled to said plurality of output processors and to said addressable queue memory for demultiplexing the retrieved multiplexed data and for selectively coupling the retrieved multiplexed data to a respective one of the output processors responsive to said queue controller; said plurality of output processors providing for selectively outputting the demultiplexed data in the unique signal protocol compatible with the respective one of the external signal sources associated with the respective one of the output processors, responsive to the queue controller.