A lap top navigation instrument, suitable for aircraft, includes a chart compartment covered by a transparent window containing a liquid crystal display as part of the window through which a conventional map or chart in the compartment can be viewed and a computer whereby an image can be generated in...http://www.google.fr/patents/US5089816?utm_source=gb-gplus-shareBrevet US5089816 - Chart instrument for displaying real time vehicle position relative to information on charts
Chart instrument for displaying real time vehicle position relative to ...
