A data delivery system facilitates transmission of data packets from a content server to multiple clients over a unidirectional network. A redundancy formatter resident at the server groups multiple data packets into a redundancy group and generates at least one redundancy packet containing redundancy...http://www.google.com/patents/US6081907?utm_source=gb-gplus-sharePatent US6081907 - Data delivery system and method for delivering data and redundant information over a unidirectional network
