A transmitter device 20, in transmitting a predetermined number of data blocks out of a plurality of data blocks to a receiver device 10 via a relay device 40, divides and writes into data blocks transmitted in succession, a request code for requesting relay device 40 to relay remaining data blocks....http://www.google.de/patents/US7764613?utm_source=gb-gplus-sharePatent US7764613 - Communication control method and system
