System for the remote data acquisition and control of...

System for utility meter communications using a single RF freque

System for utility meter communications using a single RF freque

System for wireless remote actuation of differing siren programs

System having advanced embedded code hopping encryption and lear

System identification in communications system

System monitoring programmable implantable transponder

System of communications between a post and moving bodies

System of identifying local stations by a central interrogating

System of issuing secure documents of various denomination

System of wire-bus net control devices with minimal rest current

System providing verified information exchange between an electr

System with a lock and a key which cooperate according to the tr

System with replacement meter cover

Systems and methods employing a plurality of signal amplitudes t

Systems and methods employing a plurality of signal amplitudes t

Systems and methods for access filtering employing relaxed recog

Systems and methods for monitoring and controlling tractor/trail

Systems and methods for utility meter data collection

Systems and methods for wirelessly transmitting data from a...