Patent ID: 7512630
Filing Date: 2009-03-31
Classification: H04L,Y10S

Abstract:
1. A method for data distribution and recovery comprising: attaching unique sequence numbers to data packets by a server; broadcasting the data packets from the server to a plurality of clients and an archive; storing the data packets with the attached unique sequence numbers that have been received at the archive, wherein a communication path of the data packets received at the archive is at least partly distinct from a communication path of the data packets broadcasted to the plurality of clients, and wherein at least one client monitors for a missing sequence number by: receiving by the archive a first query via point-to-point communication from the at least one client requesting re-transmission of a missing data packet having the missing sequence number; receiving by the server a second query from the at least one client requesting re-transmission of a missing data packet having the missing sequence number, if the archive fails to respond to the first query or if the archive does not have the missing data packet; and transmitting to the client the missing data packet.