US PATENTS
US patent N° 5,228,034, “Ring Communication network station”
US patent N° 5,487,073 “Test system for a very high-speed ring
network and an operating procedure for the system”.
US patent N° 5,561,812, “Data transmission system for transferring data
between a computer bus and a network using a plurality of command files to
reduce interruption”
US Patent, N° 6,751,671. "Method of communication between a user
station and a network, in particular such as internet, and implementing architecture".
US Patent, N° 6,735,627. "System and method of smartcard for managing
transmissions of multimedia data via the internet-type network, in particular
telephone or videophone data between subscriber systems."