US Patent 8380430 Portable transceiver with vehicle security control and locate features

A portable transceiver for locking and locating an automobile, includes a remote keyless entry system for locking the automobile; a locating device determining a location of the transceiver, wherein the remote keyless entry system and the locating device are housed in a pocket sized housing; and a processor deriving directional information from a current location to a waypoint, wherein in response to an activation of the remote keyless entry system, the locating device determines the waypoint corresponding substantially to that of the automobile.