System for transmitting alarm information over telephone lines

System for transmitting alarm signals with a repetition

System for transmitting and verifying alarm signals

System for transmitting audio advertising messages to shopping c

System for transmitting commands

System for transmitting data between a rotating part and a stati

System for transmitting data files between computers in a wirele

System for transmitting heading information from a compass to se

System for transmitting low frequency analog signals over AC pow

System for transmitting operating condition data from a passive

System for transmitting tire condition variables

System for transportation or access control of persons or...

System for transporting valuable documents

System for unattended printing

System for updating a content bearing medium

System for use in controlling a hydrocarbon production well

System for utility meter communications using a single RF freque

System for utility meter communications using a single RF freque

System for utilizing a conventional n-bit successive approximati

System for utilizing RFID tags to manage automotive parts