A network for sensing, communicating and controlling employing a plurality of cells which communicate through packets. First cells are assigned an announcer function, others a listener function with at least one announcer or listener cell also performing the function of repeating at least some of the...http://www.google.com/patents/US4969147?utm_source=gb-gplus-sharePatent US4969147 - Network and intelligent cell for providing sensing, bidirectional communications and control
