(19)

(11)

EP 0 227 691 A1

(12)

(43) Date of publication: 08.07.1987 Bulletin 1987/28 (21) Application number: 86901655.0 (22) Date of filing: 18.02.1986

(51) International Patent Classification (IPC):  G09G 5/ 02( . ) G09G 1/ 28( . ) G09G 1/ 00( . ) (86) International application number: PCT/US1986/000345 (87) International publication number: WO 1986/007650 (31.12.1986 Gazette 1986/28)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 18.06.1985 JP 19850001160 19.12.1985 US 19850811645 (71) Applicants: MUNDKUR, Kiran, R. Sunnyvale, CA 94087 (US) MUMMAH, Phillip, E. Redwood City, CA 94061 (US)	(72) Inventors: MUNDKUR, Kiran, R. Sunnyvale, CA 94087 (US) MUMMAH, Phillip, E. Redwood City, CA 94061 (US) (74) Representative: Baillie, Iain Cameron, et al  c/o Ladas & Parry Altheimer Eck 2 D-80331 München D-80331 München (DE)