In one embodiment, the integrated circuit has a L-level permutable switching network (L-PSN) comprising L levels of intermediate conductors. The integrated circuit can be used in electronic devices, such as switching networks, routers, and programmable logic circuits, etc....http://www.google.de/patents/US7705629?utm_source=gb-gplus-sharePatent US7705629 - Permutable switching network with enhanced interconnectivity for multicasting signals
