(19)

(11)

EP 0 890 259 A1

(12)

(43) Date of publication: 13.01.1999 Bulletin 1999/02 (21) Application number: 97916749.0 (22) Date of filing: 13.03.1997

(51) International Patent Classification (IPC):  H04N 5/ 225( . ) G02B 27/ 14( . ) G03B 19/ 12( . ) H04N 7/ 18( . ) G02B 23/ 04( . ) G03B 13/ 02( . ) H04N 5/ 232( . ) (86) International application number: PCT/US1997/003925 (87) International publication number: WO 1997/034411 (18.09.1997 Gazette 1997/40)

(84) Designated Contracting States: BE CH DE ES FR GB GR IE IT LI NL SE (30) Priority: 13.03.1996 US 19960013346P (71) Applicant: Fraser-Volpe Corporation Warminster, PA 18974 (US)	(72) Inventor: VOLPE, Joseph, B. Dresher, PA 19025 (US) (74) Representative: Serin, Jean-Pierre  Cabinet Loyer, 78, avenue Raymond Poincaré 75116 Paris 75116 Paris (FR)