A wireless data communications network having a number of users communicating from individual remote stations to a central station over a single optical-infrared channel utilizing a two-stage noncontention-based multiple-access communications protocol. During the first stage of the reservation-based...http://www.google.fr/patents/US5297144?utm_source=gb-gplus-shareBrevet US5297144 - Reservation-based polling protocol for a wireless data communications network
Reservation-based polling protocol for a wireless data communications network
