The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 1989
Filed:
May. 13, 1988
Applicant:
Inventor:
Erich T Ziemann, Middleton, WI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364449 ; 342452 ; 340995 ;
Abstract
A navigational plotter includes a light-transmissive LCD graphical display which serves as a window-like element in relation to a map placed underneath it. The map is calibrated to the plotter by moving a calibration cursor on the display to two known points diagonally displaced on the map, by manually entering the latitude and longitude of these known positions and by commanding the device to associate each point with its respective longitude and latitude. Navigational positions and navigational paths are then related to these points and displayed at the appropriate locations on the graphical display, where they appear over the appropriate locations on the underlying map.