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US 4,071,895 AGranted
Navigational display system
AssigneeWestinghouse Electric Corp.
InventorsKenneth E. Wood, James T. O'Farrell
Life of this patent
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Abstract
The position of a carrier from a navigational reference generates X,Y coordinate navigation signals which are scaled as distance along a TV line of a TV display and a line number in the frame of the TV picture. A continual updated track of a moving vehicle is therefore displayed on a TV monitor, and if a video disc is used, can be recalled from the non-volatile memory for later replay.
Claims12
A navigational display system, comprising:
- A. a TV monitor;
- B. means for providing first and second coordinate navigation signals indicative of the position of said carrier relative to a navigational reference;
- C. means for converting said first navigation signal into a calculated scaled quantity between zero and L, where L is the number of active TV lines to be displayed on the monitor's TV picture;
- D. means for converting said second navigation signal into a calculated scaled quantity across a TV line;
- and
- E. means for displaying a mark in said TV picture at the appropriately calculated TV line and distance along that line.
3 more elements
A display system for indicating the total navigational track of a carrier, comprising:
- A. a TV monitor having an X-Y display made up of a plurality of scanned TV lines each line being divided into a pluarlity of adjacent equal time increments;
- B. storage means for storing signals to be displayed on said TV monitor;
- C. means for providing first and second coordinate navigation signals indicative of the position of said carrier relative to a navigational reference;
- D. means responsive to one of said signals for generating a line number signal K1, where ##EQU3## Y.sub.N is said first navigation signal Y.sub.S is the scale of said display in the Y direction
- L is the number of TV lines displayed
- Y.sub.r is the number of TV lines to a display reference point;
- E. means responsive to the other said navigation signal for generating an increment number signal K2, where ##EQU4## X.sub.N is said other navigation signal X.sub.S is the scale of said display in the X direction
- I is the number of adjacent equal time increments in a TV line
- X.sub.r is the number of adjacent increments to said display reference point;
- F. circuit means responsive to said line number signal and said increment number signal for placing into said storage means a display signal, the displayed position of which from said display reference point is substantially proportional to the actual position of said carrier relative to said navigational reference.
7 more elements
Dependencies are inferred from the claim text.