1
Robert K Tendler: Cellular phone based automatic emergency vessel/vehicle location system. Tendler Technologies, Robert K Tendler Esq, September 10, 1996: US05555286 (594 worldwide citation)

A cellular phone based emergency vessel/vehicle location system which includes a navigation unit to determine position and speech synthesis to modulate a transmitter with the emergency message includes a combined dialer and activation detector, in which activation may either be from the cellular pho ...


2
James R Davis, Christopher M Schmandt: Automobile navigation system using real time spoken driving instructions. Massachusetts Institute of Technology, Choate Hall & Stewart, January 5, 1993: US05177685 (492 worldwide citation)

An automobile navigation system which provides spoken instructions to the driver of an automobile to guide the driver along a route is disclosed. The heart of the system is a computing apparatus comprising a map database, route finding algorithms, a vehicle location system, discourse generating prog ...


3
Neil A Rimer: System for locating and communicating with mobile vehicles. Wolf Greenfield & Sacks, July 11, 1995: US05432841 (489 worldwide citation)

A vehicle location system which provides a plurality of cellular systems that each includes a memory for identifying the cellular subscriber stations that are based in the particular system and visiting cellular subscriber stations based in another of the systems. The plurality of cellular systems i ...


4
Eliezer A Sheffer: Vehicle location system. TrackMobile, Rosen Dainow & Jacobs, October 8, 1991: US05055851 (446 worldwide citation)

A system for determining a location of a selected vehicle from which an alarm signal is generated which includes a fixed array of cellular sites each site having a wireless signal detecting and generating units each of which is capable of receiving an input alarm signal having a signal strength whic ...


5
Eliezer A Sheffer: Vehicle location system. TrackMobile, Rosen Dainow & Jacobs, January 2, 1990: US04891650 (432 worldwide citation)

A system for determining a location of a selected vehicle from which an alarm signal is generated which includes a fixed array of cellular sites each site having a wireless signal detecting and generating units each of which is capable of receiving an input alarm signal having a signal strength whic ...


6
William E Sagey, Harold V Lind, Carl E Lind: Vehicle location system. Hughes Aircraft Company, Thomas A Runk, Anthony W Karambelas, April 26, 1988: US04740792 (340 worldwide citation)

A vehicle locating system (VLS) comprises a large number, for example, several million, vehicle-mounted transmitters and several benchmark transmitters; first, second and third signal relay stations and a central processing station at which the transmitter locations are determined, the central stati ...


7
Jesse H Tanner: Vehicle location method and system. Seed and Berry, September 12, 1995: US05450329 (241 worldwide citation)

A vehicle location system and method whereby the position coordinates of a vehicle are made available to other vehicles or to fixed locations by transmission of a data message containing position coordinates of the vehicle. The time slot in which the data message is transmitted is uniquely assigned ...


8
Michael E Barnard: Vehicle location system. U S Philips Corporation, Lesley Rhyne, June 2, 1992: US05119102 (228 worldwide citation)

Signals from a number of NAVSTAR global positioning system (GPS) satellites (11,12,13,14) are received by a receiver (16) in a vehicle (15) and a segment of the signals is stored in a memory (18) prior to retransmission by a transmitter (19). A base station (35) receives these transmissions from the ...


9
James M Janky, David G Bird: Vehicle location system. Trimble Navigation, Donald S Cooper & Dunham Dowden, July 7, 1998: US05777580 (169 worldwide citation)

Method and apparatus for determining vehicle present location using a location determination system (LDS), such as GPS, GLONASS, Loran or an inertial navigation system, that receives LDS signals from two or more sources. An LDS signal antenna and receiver/processor, an interrogation signal (IS) rece ...


10
Adrian B Haemmig: Vehicle location system. Products of Information Technology, Knobbe Martens Olson Hubbard & Bear, April 4, 1978: US04083003 (146 worldwide citation)

A vehicle location system having a plurality of stationary wayside stations positioned at predetermined geographical locations. The passage of a vehicle near a station references the location of the vehicle at that point in time and automatically supplies the remote headquarters with updated informa ...