A wireless-LAN terminal comprises a wired-LAN controller, a wireless modem and an access controller intervening between the wired-LAN controller and the wireless modem. In the access controller, the termination of data reception and the occurrence of a transmission request are detected by monitoring...http://www.google.fr/patents/US5828663?utm_source=gb-gplus-shareBrevet US5828663 - Access control system for wireless-lan terminals
