This invention provides a communication apparatus and a communication method of transmitting and receiving command data for controlling a device connected to a communication line by selecting an arbitrary one of a plurality of different communication systems, wherein at least some of a plurality of command...http://www.google.fr/patents/US20030063601?utm_source=gb-gplus-shareBrevet US20030063601 - COMMUNICATION APPARATUS AND COMMUNICATION METHOD
Numéro de demande: 09/022,979 Numéro de publication: US 2003/0063601 A1 Date de dépôt: 12 févr. 1998 Brevet délivré: US6996096 ( Date de délivrance 7 févr. 2006)
