Patent ID: 7319697

Claim:
A data communication system comprising devices for routing data, the devices interconnected by communication links, the data being transmitted in packets and a packet including a header, said system being characterized in that: a transmitting part of a first routing device includes first storage means for storing an uncoded value of at least one parameter from said header and for transmitting a coded value corresponding to the uncoded value, and first entropy coding compression means for recoding the uncoded value, the recoded value being stored instead of the coded value after the latter is transmitted along a communication link, and a receiving part of a second routing device, the latter being connected to the first routing device by the communication link, includes second storage means for storing the coded value coming from the communication link and for transmitting the uncoded value corresponding thereto, and second entropy coding compression means for recoding the uncoded value, the recoded value being stored instead of the coded value.