(19)
(11)
EP 1 151 422 A2
(12)
(88)
Date of publication A3:
02.11.2000
(43)
Date of publication:
07.11.2001
Bulletin 2001/45
(21)
Application number:
00914521.0
(22)
Date of filing:
04.02.2000
(51)
International Patent Classification (IPC)
7
:
G08B
5/22
(86)
International application number:
PCT/US0002/964
(87)
International publication number:
WO 0046/772
(
10.08.2000
Gazette 2000/32)
(84)
Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
(30)
Priority:
05.02.1999
US 118913 P
10.09.1999
US 153350 P
(71)
Applicant:
Eworldtrack, Inc.
Anderson, SC 29621 (US)
(72)
Inventors:
BROWN, William, W.
Anderson, SC 29621 (US)
SMITH, David, G.
Anderson, SC 29625 (US)
(74)
Representative:
Barlow, Roy James
J.A. KEMP & CO.14, South SquareGray's Inn
London WC1R 5JJ
London WC1R 5JJ (GB)
(54)
MULTI-USER GLOBAL POSITION TRACKING SYSTEM AND METHOD