(19)
(11)
EP 0 162 099 A1
(12)
(43)
Date of publication:
27.11.1985
Bulletin 1985/48
(21)
Application number:
85900263.0
(22)
Date of filing:
24.10.1984
(51)
International Patent Classification (IPC):
G01S
5/
14
( . )
G01S
11/
08
( . )
G01S
11/
00
( . )
(86)
International application number:
PCT/US1984/001726
(87)
International publication number:
WO 1985/002023
(
09.05.1985
Gazette 1985/11)
(84)
Designated Contracting States:
DE FR GB
(30)
Priority:
24.10.1983
US 19830544886
(71)
Applicant:
OFFSHORE NAVIGATION, INC.
Harahan, LA 70183 (US)
(72)
Inventors:
CHRISTY, Edmund, H.
Metairie, LA 70005 (US)
ROUQUETTE, Robert, E.
New Orleans, LA 70119 (US)
VAN DOREN, Lawrence
San Diego, CA 92117 (US)
(74)
Representative:
Kirk, Geoffrey Thomas
BATCHELLOR, KIRK & CO. 2 Pear Tree Court Farringdon Road
London EC1R 0DS
London EC1R 0DS (GB)
(54)
HIGH FREQUENCY SPREAD SPECTRUM POSITIONING SYSTEM AND METHOD THEREFOR