(19)

(11)

EP 0 328 532 A1

(12)

(43) Date of publication: 23.08.1989 Bulletin 1989/34 (21) Application number: 87906616.0 (22) Date of filing: 11.09.1987

(51) International Patent Classification (IPC):  G11B 27/ 00( . ) H04N 5/ 765( . ) G11B 31/ 00( . ) (86) International application number: PCT/US1987/002299 (87) International publication number: WO 1988/002589 (07.04.1988 Gazette 1988/08)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 02.10.1986 US 19860914307 (71) Applicant: COGERT, Harmon I. Woodland Hills, CA 91364 (US)	(72) Inventor: COGERT, Harmon I. Woodland Hills, CA 91364 (US) (74) Representative: Sunderland, James Harry  HASELTINE LAKE & CO Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT London WC2A 1AT (GB)