(19)

(11)

EP 0 872 137 A1

(12)

(43) Date of publication: 21.10.1998 Bulletin 1998/43 (21) Application number: 96923143.0 (22) Date of filing: 28.06.1996

(51) International Patent Classification (IPC):  H04B 1/ 38( . ) H04L 29/ 06( . ) H04L 12/ 56( . ) (86) International application number: PCT/SE1996/000865 (87) International publication number: WO 1997/003532 (30.01.1997 Gazette 1997/06)

(84) Designated Contracting States: AT DE DK ES FI FR GB IT NL SE (30) Priority: 07.07.1995 SE 19950002499 (71) Applicant: Datasoft Systems AB 853 57 Sundsvall (SE)	(72) Inventor: LAUKKANEN, Risto S-853 57 Sundsvall (SE) (74) Representative: Onn, Thorsten, et al  AB STOCKHOLMS PATENTBYRA Box 23101 104 35 Stockholm 104 35 Stockholm (SE)