Patent ID: 6546011
Filing Date: 2003-04-08
Classification: H04J,H04L,H04Q

Abstract:
A switching system exchanging fixed-length cells each containing a header part and an information part, between a plurality of incoming highways and a plurality of outgoing highways in accordance with information contained in the header part of the cells, said switching system comprising:a serial-parallel converter converting the cells received from the plurality of incoming highways to parallel signals; a first memory storing at least information part of the cells converted into the parallel signals to be converted to one of the plurality of outgoing highways; a parallel-serial converter converting an output of the first memory to a serial signal to be distributed to one of the plurality of outgoing highways; a second memory storing information for managing addresses of the first memory; and a controller, connected to the first memory and the second memory, and controlling writing in and reading out of the information part of the cells to and from the first memory based on an output from the second memory, the writing of the information part being carried out by applying an address of the first memory to the first memory in accordance with information fetched from the second memory, the reading of the information part being carried out by applying an address stored in writing of the information part to the first memory and inputting information corresponding to the stored address used for the reading to the second memory.