(19)

(11)

EP 0 213 126 A1

(12)

(43) Date of publication: 11.03.1987 Bulletin 1987/11 (21) Application number: 85901723.0 (22) Date of filing: 08.03.1985

(51) International Patent Classification (IPC):  H02N 1/ 08( . ) (86) International application number: PCT/US1985/000390 (87) International publication number: WO 1986/005334 (12.09.1986 Gazette 1986/20)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (71) Applicant: SCIENCE APPLICATIONS INTERNATIONAL CORPORATION La Jolla, CA 92038 (US)	(72) Inventor: SPRATT, James, P. Rancho Palos Verdes, CA 90274 (US)