A controller is disclosed for use in a local area network preferably of the type having a token-passing protocol. The controller modifies the contents of a data packet or message as it moves on the network media, thereby to intercept, modify and redirect the data message to nodes other than the originally...http://www.google.es/patents/US4866706?utm_source=gb-gplus-sharePatente US4866706 - Token-passing local area network with improved throughput
Token-passing local area network with improved throughput