A data controller to control passage of data between a plurality of data handling devices comprises a communication link to permit communication of the devices with one another. An indicator is associated with each of the devices to indicate data is to be transmitted from any one of the devices. An inhibitor...http://www.google.es/patents/USRE33650?utm_source=gb-gplus-sharePatente USRE33650 - Deterministic access protocol local area network
