Broadband switching including the implementation of and control over a massive sub-microsecond switching fabric. To effect the attributes of the switching fabric, conditionally nonblocking components are used a building-blocks in an interconnection network which is recursively constructed. The properties...http://www.google.com/patents/US7016345?utm_source=gb-gplus-sharePatent US7016345 - Conditionally nonblocking switch of the expander type
