In a network system, a plurality of nodes are communicable with one another to exchange information and to transfer data, and a bus is provided for connection to the nodes and for configuration of logical paths to logically link one node to another node so as to secure transfer of the ...http://www.google.ca/patents/US5825752?utm_source=gb-gplus-sharePatent US5825752 - Local area network transferring data using isochronous and asynchronous channels 
