Patent ID: 6069892
Filing Date: 2000-05-30
Classification: H04L,H04Q

Abstract:
A fixed length cell transmission system comprising:a fixed length cell transmitting unit includingan exchange section receiving a fixed-length cell in the form of an electric signal to output said fixed-length cell to any one of a plurality of exit ports,a plurality of optical transmitting sections coupled to said exit ports of said exchange section to convert said fixed-length cell being an electric signal into an optical signal and to output said optical signal, anda band measuring and controlling section having a band information measuring section measuring band information from said fixed-length cell being an electric signal inputted and a transmission controlling section determining at least one, to be put to use, of said plurality of optical transmitting sections on the basis of the measurement result by said band information measuring section, driving the determined optical transmitting section, and outputting said fixed-length cell, inputted to said exchange section, to said exit port which is in connection with said optical transmitting section to be put to use; anda fixed-length cell receiving unit coupled through an optical transmission line to said fixed-length cell transmitting unit, includinga plurality of optical receiving sections converting said fixed-length cell, converted into an optical signal in said optical transmitting section into an electric signal and outputting the converted electric signal, anda reception controlling section driving said optical receiving section corresponding to said optical transmitting section to be put to use on the basis of information about said optical transmitting section to be put to use in said fixed-length cell transmitting unit, said information being transmitted from said fixed-length cell transmitting unit.