A plurality of nodes are coupled via a serial data bus A transition from a first state to a second state is repeatedly transmitted onto the bus from a node arbitrarily selected from the plurality of nodes and is defined as the bit master. One or more of the nodes transmits onto the bus dominant and recessive...http://www.google.com/patents/US7769932?utm_source=gb-gplus-sharePatent US7769932 - Bitwise arbitration on a serial bus using arbitrarily selected nodes for bit synchronization
