(19)

(11)

EP 0 609 384 A1

(12)

(43) Date of publication: 10.08.1994 Bulletin 1994/32 (21) Application number: 92923452.0 (22) Date of filing: 22.10.1992

(51) International Patent Classification (IPC):  G06F 3/ 041( . ) G06F 3/ 038( . ) G07C 9/ 00( . ) G06F 3/ 033( . ) G06F 3/ 048( . ) (86) International application number: PCT/US1992/009123 (87) International publication number: WO 1993/008559 (29.04.1993 Gazette 1993/11)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE (30) Priority: 23.10.1991 US 19910781747 (71) Applicant: ELECTRONIC INK Berkeley, CA 94708 (US)	(72) Inventor: KLEY, Vic Berkeley, CA 94708 (US) (74) Representative: Driver, Virginia Rozanne  Page White & Farrer 54 Doughty Street London WC1N 2LS London WC1N 2LS (GB)