A digital data processing system including an interconnection for the various elements that constitute the system. Each element that connects to the interconnection is called a nexus. For one element to communicate with another element, the one element, as a commanding nexus, seeks control of the interconnection...http://www.google.de/patents/US4232366?utm_source=gb-gplus-sharePatent US4232366 - Bus for a data processing system with overlapped sequences
