An asynchronous transfer mode switching system including a core switch section (CS102) in an output buffer-type configuration which has an ATM switching function between high-rate input and output ports, an input buffer module section (IXB20) which multiplexes plural low-rate input line to the high-rate...http://www.google.com.hk/patents/US6067298?utm_source=gb-gplus-share專利 US6067298 - ATM switching system which separates services classes and uses a code switching section and back pressure signals
