Patent ID: 6289011
Filing Date: 2001-09-11
Classification: H04L,H04Q

Abstract:
A 2n.times.n multiplexing switch n being positive integer, the switch, comprising:a valid extracting device, comprising 2n valid extractors, for validating routing tags of inputted cells and for determining whether or not a cell is to be saved and generating valid signals;a first in first buffer selecting device for selecting a first in first out buffer to store each cell using said valid signals and for transferring a cell to said selected first in first out buffer;a shared first in first out buffering device, comprising 2n shared first in first out buffers and storing cells;an output device reading cells stored in said first in first out buffers and transferring n cells to output ports; anda cell counter counting cells being currently stored in said shared first in first out buffer device using data from said first in first out buffer selecting device and said output device.