Patent ID: 7970015

Claim:
A method for transmitting a message, enclosed in a plurality of data packets, by compressed data transmission between a sender ( 2 ′) and a receiver ( 3 ′) via a data network ( 1 ) comprising the steps of A) providing for a sender side gateway ( 4 ′) associated to said sender ( 2 ′) and a receiver side gateway ( 5 ′) associated to said receiver ( 4 ′), B) the sender ( 2 ′) transmitting the message to the sender side gateway ( 4 ′), C) the sender side gateway ( 4 ′) analyzing the message for compressible message parts and uncompressible message components, D) the sender side gateway ( 4 ′) using a file oriented compression, compresses a compressible part of the message with a compression process that analyzes the compressible part and optimizes compression accordingly, E) the sender side gateway ( 4 ′) 1) placing the compressible part of the message compressed by file oriented compression in at least one compressed data file and transmitting the at least one compressed data file to the receiver side gateway ( 5 ′) 2) compressing the message components, which are uncompressible using file oriented compression, using instead a record oriented compression comprising successively compressing data records to form compressed data records by using a compression process that collects and analyzes said data records, and optimizes compression from data record to data record, 3) transmitting the compressed data records to the receiver side gateway, 4) transmitting the message components that are uncompressible, using either file oriented compression or record oriented compression, to the receiver side gateway without compression, F) the receiver side gateway ( 5 ′) decompressing the compressed data file and combining the decompressed message part with the uncompressible message components to reconstitute the original message, and G) the receiver side gateway ( 5 ′) sending said reconstituted message to the receiver ( 3 ′).