Plural information display for navigation

Details Plural information display for navigation Plural information display for navigation

1993-09-15

1994-11-29

Black, Thomas G.

Boots, shoes, and leggings

364451, 364452, 364447, 340990, 340995, 342 47, 342176, G06F 1550, G08G 1123, G01S 1300

Patent

active

053695895

ABSTRACT:
Apparatus for visually displaying simultaneously on one screen two variables that characterize the path followed by a land, marine or airborne vessel with reference to a preselected or ideal path that extends from a beginning point to an ending point. Using two distinguishable icons or other indicia for the two variables, the screen displays a single one-dimensional scale and displays the two indicia, each of which represents one of the following differences: (1) the difference between at least one of the two horizontal location coordinates for the present vessel location and for a nearest point on the preselected path; (2) the difference between the elevation coordinates for the present vessel location and for a nearest point on the preselected path; (3) the difference between the present horizontal bearing angle of the vessel path and the horizontal bearing angle along the preselected path at a nearest point on the preselected path; and (4) the difference between the present vertical bearing angle of the vessel path and the vertical bearing angle along the preselected path at a nearest point on the preselected path. Alternatively, the screen may display two one-dimensional scales with either two indicia, three indicia or two mutually exclusive sets of two indicia. Alternatively, two indicia may be used to define the size of a rectangle and the quadrant it appears in, for representation of the two indicia.

REFERENCES:
patent: 4283705 (1981-08-01), James et al.
patent: 4368517 (1983-01-01), Lovering
patent: 4777602 (1988-10-01), Wesner
patent: 4811679 (1989-03-01), Masuzawa et al.
patent: 4989151 (1991-01-01), Nuimura
patent: 5214855 (1993-06-01), Gibbs
patent: 5266948 (1993-11-01), Matsumoto

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