Abstract A personal navigation device and method for providing location information. In one embodiment, the present invention is comprised of a portable hand-held unit. The portable unit contains a communication system adapted to receive data at and transmit data from the portable unit. The portable unit also contains a position determining system which determines the geographic location of the portable unit. The position determining system is connected to the communication system. A graphic display located on the portable unit is also connected to the position determining system. The graphic display displays a representation of the current location of the portable unit with respect to a previously selected location. In one embodiment, the representation of the current location also includes a representation of the speed and the heading of the portable unit with respect to the previously selected location.
A personal navigation device comprising: a portable navigation unit adapted to be hand-held, said portable navigation unit including; a communication device adapted to receive data and transmit data therefrom, a position determining system determining the geographic location of said portable navigation unit, and a graphic display coupled to said position determining system, said graphic display adapted to display only a representation of the current location of said portable navigation unit with respect to a previously selected location such that said portable navigation unit provides a cursor, a vector extending from said cursor towards the direction in which said personal navigation device is moving, wherein the length of said vector corresponds to the speed of said portable navigation unit such that the faster said portable navigation unit moves the greater the length of said vector, said graphic display further adapted to display icons representing selected locations and cross track error indicia, said graphics display not providing extraneous information including latitude, longitude and complex map information of said geographic location of said portable navigation unit on said display.
Claim 2
Dependent Claim
176 words
A personal navigation device comprising: a portable navigation unit adapted to be hand-held, said portable navigation unit including; a communication device adapted to receive data and transmit data therefrom, a position determining system determining the geographic location of said portable navigation unit, and a graphic display coupled to said position determining system, said graphic display adapted to display only a representation of the current location of said portable navigation unit with respect to a previously selected location such that said portable navigation unit provides a cursor, a vector extending from said cursor towards the direction in which said personal navigation device is moving, wherein the length of said vector corresponds to the speed of said portable navigation unit such that the faster said portable navigation unit moves the greater the length of said vector, said graphic display further adapted to display icons representing selected locations and cross track error indicia, said graphics display not providing extraneous information including latitude, longitude and complex map information of said geographic location of said portable navigation unit on said display.