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Inventor: Dorey; Jacques A.
Address: Combs-la-Ville, FR
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4151529 |
Radio beacon for aerial navigation system |
April 24, 1979 |
| An air-navigational beacon, designed to simulate an imaginary circular ben with a multiplicity of pairs of diametrically opposite dipoles excited in cyclic succession, comprises an array of stationary dipole pairs disposed along lines parallel to a given direction. The spacing of th |
| 4042929 |
Helicopter navigation system |
August 16, 1977 |
| In a system for use in helicopter navigation antennas are carried at the e ends of each of the blades of the rotor of the helicopter. Radio waves transmitted by a beacon at a known location on the ground are received by the antennas and phase modulated by their rotation. On the rotor th |
| 4019184 |
Direction-finding method and system |
April 19, 1977 |
| High-frequency waves transmitted by a rotating antenna array at a ground tion are intercepted by an airborne receiver for photoelectric evaluation by one or more discs whose light transmissivity, by translumination or reflection, varies periodically according to a sinusoidal law in one |
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