(19)

(11)

EP 0 469 078 A1

(12)

(43) Date of publication: 05.02.1992 Bulletin 1992/06 (21) Application number: 90907914.0 (22) Date of filing: 21.02.1990

(51) International Patent Classification (IPC):  H04N 1/ 23( . ) H04N 1/ 44( . ) (86) International application number: PCT/US1990/000886 (87) International publication number: WO 1990/013201 (01.11.1990 Gazette 1990/25)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 21.04.1989 US 19890341756 22.05.1989 US 19890354802 (71) Applicants: IGGULDEN, Jerry R. Santa Clarita, CA 91321 (US) STRECK, Donald A. Ojai, CA 93023 (US)	(72) Inventors: IGGULDEN, Jerry R. Santa Clarita, CA 91321 (US) STRECK, Donald A. Ojai, CA 93023 (US) (74) Representative: Watts, Peter Graham, et al  Anthony Cundy & Co., 1623 Warwick Road Knowle, Solihull, West Midlands B93 9LF Knowle, Solihull, West Midlands B93 9LF (GB)