A wireless interface device services communications between a wirelessly enabled host and at least one user input device. The wireless interface device includes a wireless interface unit, a processing unit, an input/output unit, and may include a power management unit. The wireless interface unit wirelessly...http://www.google.fr/patents/US7203526?utm_source=gb-gplus-shareBrevet US7203526 - Wireless user input device providing host link indication
Wireless user input device providing host link indication