An interface circuit is described for use with a plurality of peripherals or attachments connected in data communication with a central computer. The computer sends data messages, each of which includes the unique addresses of that peripheral to which the particular data message is directed. The peripheral...http://www.google.com.au/patents/US5191655?utm_source=gb-gplus-sharePatent US5191655 - Interface arrangement for facilitating data communication between a computer and peripherals
