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James T. O'Farrell Patents |
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Inventor: O'Farrell; James T.
Address: Annapolis, MD
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4071895 |
Navigational display system |
January 31, 1978 |
| 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 |
| 4047147 |
Dual beam sonar display system |
September 6, 1977 |
| Docking sonar uses first and second fan-shaped beams sequentially scanning a target zone in mutually perpendicular directions. Target returns from one beam scan are compared with target returns from the other beam scan and the results are placed into a storage medium such as a video disc |
| 3934077 |
Viewing system |
January 20, 1976 |
| An underwater floodlit scene is viewed by a TV camera. The first few active TV lines in the scan format, indicative of the illuminated field where backscatter is a minimum, are stored on a video disk. As the apparatus travels over a target area to be viewed, subsequent portions of the TV |
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