(19)

(11)

EP 0 441 873 A1

(12)

(43) Date of publication: 21.08.1991 Bulletin 1991/34 (21) Application number: 89912825.0 (22) Date of filing: 03.11.1989

(51) International Patent Classification (IPC):  G06F 7/ 02( . ) G06F 9/ 308( . ) G06F 7/ 74( . ) (86) International application number: PCT/US1989/004963 (87) International publication number: WO 1990/005334 (17.05.1990 Gazette 1990/11)

(84) Designated Contracting States: DE FR GB (30) Priority: 04.11.1988 US 19880267460 (71) Applicant: DAVIN COMPUTER CORPORATION Irvine, CA 92714 (US)	(72) Inventors: MEHTVIN, David Boulder, CO 80303 (US) McLAGAN, Angus Newport Beach, CA 92660 (US) UN, Chong, Sam Anaheim, CA 92807 (US) (74) Representative: Maury, Richard Philip, et al  Sommerville & Rushton 11 Holywell Hill St. Albans Herts. AL1 1EZ St. Albans Herts. AL1 1EZ (GB)