Patent ID: 7092972

Claim:
A communication system comprising: a sender site including a database having: a trove section; and a transfer section; a file transfer system having: a trove reader to read the trove section and to perform a task selected from a group including: reading and marking each row in the trove section as “READ” once that row is read, setting a remote site counter in the trove section to a maximum number of spokes to which the sender site has to physically transfer the file delta, calculating the file delta based on a previous version of the file if the pending command is to save data, creating the delta file, insert a row in the transfer section for each spoke to which the delta file needs to be transferred, and duplicating contents of a respective row from the trove section into the transfer section; and a transfer reader to read the trove section and the transfer section, and to transmit a delta of a file at the sender site; and a receiver site to receive the file delta from the transfer reader, the receiver site having a file installer to patch a previously installed version of the file with the file delta.