(19)

(11)

EP 0 112 330 A1

(12)

(43) Date of publication: 04.07.1984 Bulletin 1984/27 (21) Application number: 82902027.0 (22) Date of filing: 17.05.1982

(51) International Patent Classification (IPC):  G11B 21/ 12( . ) G11B 5/ 54( . ) (86) International application number: PCT/US1982/000661 (87) International publication number: WO 1983/004129 (24.11.1983 Gazette 1983/27)

(84) Designated Contracting States: DE FR GB NL (71) Applicant: DISTRON, INC. Sunnyvale, CA 94086 (US)	(72) Inventor: WRIGHT, Harold T. San Carlos, CA 94070 (US) (74) Representative: Godsill, John Kenneth, et al  Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT London WC2A 1AT (GB)