Patent ID: 6098180
Filing Date: 2000-08-01
Classification: H04L

Abstract:
A system for resuming an interrupted transmission of a file over a network, comprising:a sending node comprising a file comprising a plurality of data portions and a processor executing a first application program, the first application program comprising a calculator module that generates a signature uniquely associated with the file; anda receiving node receiving the signature and an incomplete copy of the file over the network from the sending node, the receiving node comprising a processor executing a second application program and memory storing a data record identifying the file as incompletely received by the receiving node, the data record including an indicator identifying an unreceived data portion of the file;wherein the second application program executing on the receiving node requests transmission of the unreceived data portion identified by the indicator in response to determining from the signature and the data record that the receiving node lacks a complete copy of the file.