NAVIGATIONAL AID

A navigational aid comprises a housing (10) with a flat, transparent liquid crystal display (12). The display (12) is flat and flush with the bottom of the housing (10), to allow the aid to be placed flat on a map or chart (8). The aid is microprocessor controlled and accepts plug in memory modules...

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Bibliographische Detailangaben
Hauptverfasser:	ETIENNE RIJHEER, DAN CLIFFORD CAWOOD, DENNIS ANDREW RAUBENHEIMER, GEOFFREY JACK RAWLINGS, ANTHONY DAVID BROWNING HOLDERNESS
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE CRYPTOGRAPHY DIAGRAMS DISPLAY EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES GLOBES GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS PLANETARIA SEALS SURVEYING TESTING
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Beschreibung
Zusammenfassung:	A navigational aid comprises a housing (10) with a flat, transparent liquid crystal display (12). The display (12) is flat and flush with the bottom of the housing (10), to allow the aid to be placed flat on a map or chart (8). The aid is microprocessor controlled and accepts plug in memory modules (22), which contain information relating to an area through which a craft, for example, an aircraft, is to be navigated. The display generates cursors (60, 62, 64) which can be superimposed on the map (8). The aid can display graphically the progress of the craft, superimposed on the map (8), on the basis of input data supplied by the user. Alternatively, the cursors can be moved to measure the distance between points on the map.