(19)
(11) EP 1 027 693 A1

(12)

(43) Date of publication:
16.08.2000 Bulletin 2000/33

(21) Application number: 98955188.2

(22) Date of filing: 28.10.1998
(51) International Patent Classification (IPC)7G09F 3/20
(86) International application number:
PCT/US9822/914
(87) International publication number:
WO 9923/632 (14.05.1999 Gazette 1999/19)
(84) Designated Contracting States:
BE CH DE FR GB IT LI

(30) Priority: 31.10.1997 US 960425

(71) Applicants:
  • Arial Systems Corporation
    Vernon Hills, IL 60061 (US)
  • Arial Systems Corporation
    Vernon Hills, IL 60061 (US)

(72) Inventors:
  • PIRELLI, Thomas, R.
    Riverwoods, IL 60015 (US)
  • HANSBERGER, Gerald, L.
    Barrington, IL 60010 (US)
  • ULRICH, Daniel, J.
    Hamilton, OH 45013 (US)
  • ABOUJAOUDE, Elias, D.
    Kettering, OH 45420 (US)

(74) Representative: Findlay, Alice Rosemary 
Lloyd Wise, Tregear & Co.,Commonwealth House,1-19 New Oxford Street
London WC1A 1LW
London WC1A 1LW (GB)

   


(54) ACTIVE BADGE OR TAG FOR A LOCATING AND TRACKING SYSTEM