A large-scale fault tolerant asynchronous transfer mode (ATM) switch and a self-routing method in a 2nn multiplexing switch. The 2nn multiplexing switch includes 2n valid (VD) extracting parts generating valid (VD) signals, wherein it is used to select a cell among the 2n cells inputted every cell period...http://www.google.de/patents/US6426940?utm_source=gb-gplus-sharePatent US6426940 - Large scaled fault tolerant ATM switch and a self-routing method in a 2N
