Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Patent
1994-11-14
1998-07-28
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
342419, 455 331, 455 89, G01S 502
Patent
active
057867895
ABSTRACT:
A GPS unit and a cellular telephone unit each have add-on modules for providing additional functionality. A battery powered hand-held GPS unit has a battery power module with a built-in cellular telephone. The controls on the GPS unit are used to control cellular telephone operations. The GPS controlled cellular telephone transmits position location information obtained by the GPS unit. Alternatively, a battery powered hand-held cellular telephone unit has a battery power module with a built-in GPS device. The controls on the cellular telephone portion are used to control GPS device operations. The cellular telephone portion is able to transmit position location information obtained by the GPS device. The GPS and a cellular telephone device can function with either a standard battery module, or with a battery module having a cellular telephone or a GPS device built into the battery module.
REFERENCES:
patent: 5043736 (1991-08-01), Darnell et al.
patent: 5155860 (1992-10-01), McClure
patent: 5334824 (1994-08-01), Martinez
patent: 5408513 (1995-04-01), Busch et al.
patent: 5479479 (1995-12-01), Braitberg et al.
patent: 5517682 (1996-05-01), Dayani
King Patrick T.
Phan Dao L.
Tarcza Thomas H.
Trimble Navigation Limited
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