Disclosed herein is a HB (Home-Blackboard) protocol which is a hybrid protocol of a HP (Home-Proxy) and a Blackboard in multi-region mobile agent computing environment. The present invention provides the HB protocol which is capable of decreasing the cost of location management and message delivery,...http://www.google.de/patents/US20070004432?utm_source=gb-gplus-sharePatent US20070004432 - Location management and message delivery protocol in multi-region mobile agent computing environment