(19)

(11)

EP 0 156 907 A1

(12)

(43) Date of publication: 09.10.1985 Bulletin 1985/41 (21) Application number: 84903830.0 (22) Date of filing: 28.09.1984

(51) International Patent Classification (IPC):  H04L 12/ 417( . ) (86) International application number: PCT/US1984/001572 (87) International publication number: WO 1985/001626 (11.04.1985 Gazette 1985/09)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 28.09.1983 US 19830536907 (71) Applicant: VECTOR GRAPHIC, INC. Thousand Oaks, CA 91320 (US)	(72) Inventors: REICHERT, Andrew, R. Simi Valley, CA 93065 (US) CHRISTENSEN, Christian, C. Calabasas, CA 91302 (US) ESSER, Nicholas, M., Jr. Simi Valley, CA 93065 (US) NELSON, Bradley, R. Thousand Oaks, CA 91320 (US) STAPLES, Leven, E. San Antonio, TX 78230 (US)