(19)

(11)

EP 0 327 539 A1

(12)

(43) Date of publication: 16.08.1989 Bulletin 1989/33 (21) Application number: 87906031.0 (22) Date of filing: 15.09.1987

(51) International Patent Classification (IPC):  G09G 3/ 20( . ) G09F 9/ 33( . ) G06F 3/ 147( . ) (86) International application number: PCT/SE1987/000416 (87) International publication number: WO 1988/002162 (24.03.1988 Gazette 1988/07)

(84) Designated Contracting States: DE FR GB SE (30) Priority: 18.09.1986 SE 19860003933 (71) Applicant: COMVIEW AB S-113 23 Stockholm (SE)	(72) Inventor: GRAFSTRÖM, Mats S-112 47 Stockholm (SE) (74) Representative: Forssell, Gunilla, et al  H. Albihns Patentbyra AB, Box 3137 S-103 62 Stockholm S-103 62 Stockholm (SE)