(19)

(11)

EP 1 364 489 A2

(12)

(88) Date of publication A3: 12.09.2003 (43) Date of publication: 26.11.2003 Bulletin 2003/48 (21) Application number: 01963668.7 (22) Date of filing: 06.09.2001

(51) International Patent Classification (IPC)7: H04L 12/28, H04L 1/14 (86) International application number: PCT/SE0101/903 (87) International publication number: WO 0202/1704 (14.03.2002 Gazette 2002/11)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 08.09.2000 SE 0003202 03.11.2000 US 246433 P (71) Applicant: Pricer AB 192 79 Sollentuna (SE)	(72) Inventor: NILSSON, Björn S-740 21 Järlasa (SE) (74) Representative: Lindgren, Anders  Dr. Ludwig Brann Patentbyra AB,P.O. Box 1344,Drottninggatan 7 751 43 Uppsala 751 43 Uppsala (SE)