System for monitoring status of plurality of repeaters

System for monitoring switch locations

System for monitoring the use of heat energy in water devices in

System for monitoring water consuming structures in an...

System for off-the-air reprogramming of communication receivers

System for operating a display panel

System for producing printed products

System for providing paging receivers with accurate time of day

System for providing several data terminals with access to a dig

System for providing wireless pointer control

System for recognizing authorization to use a vehicle

System for remote computer control using message broadcasting sy

System for remote control of identical devices

System for remote data collecting, method implemented in this sy

System for remote data collection

System for remote operation of a personal hygiene or...

System for remotely adjusting a parameter of an electrical circu

System for resolving collision in local network

System for selectively transmitting messages to passers-by

System for setting ambient parameters