(19)

(11)

EP 1 163 652 A1

(12)

(43) Date of publication: 19.12.2001 Bulletin 2001/51 (21) Application number: 99963000.7 (22) Date of filing: 03.12.1999

(51) International Patent Classification (IPC)7: G09F 3/00 (86) International application number: PCT/US9928/680 (87) International publication number: WO 0034/937 (15.06.2000 Gazette 2000/24)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 04.12.1998 US 110889 P (71) Applicant: Tracking Technologies, Inc. Spring Lake Park, MN 55432 (US)	(72) Inventors: HUNT, Daniel, R. Moundsview, MN 55112 (US) HANSON, Charles, S. Lakeville, MN 55044 (US) (74) Representative: Maiwald Patentanwalts GmbH  Elisenhof Elisenstrasse 3 80335 München 80335 München (DE)