(19)
(11) EP 1 166 044 A1

(12)

(43) Date of publication:
02.01.2002 Bulletin 2002/01

(21) Application number: 00921417.2

(22) Date of filing: 22.03.2000
(51) International Patent Classification (IPC)7G01C 15/00, G01S 5/16
(86) International application number:
PCT/US0007/445
(87) International publication number:
WO 0057/131 (28.09.2000 Gazette 2000/39)
(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: 22.03.1999 US 125545 P
13.10.1999 WO PCT/US99/23615
21.03.2000 US 532099

(71) Applicant: Arc Second, Inc
Sterling, VA 20166 (US)

(72) Inventors:
  • HEDGES, Thomas, M.,Arc Second, Inc.
    Sterling, VA 20166 (US)
  • CASTEEL, Scott, C.,Arc Second, Inc.
    Sterling, VA 20166 (US)
  • DORNBURSCH, Andrew,Arc Second, Inc.
    Sterling, VA 20166 (US)
  • PENDLETON, Edmund, S.,Arc Second, Inc.
    Sterling, VA 20166 (US)
  • GAFF, Doug,Arc Second, Inc.
    Sterling, VA 20166 (US)
  • SOBEL, Michael, J.,Arc Second, Inc.
    Sterling, VA 20166 (US)
  • WAID, Frey,Arc Second, Inc.
    Sterling, VA 20166 (US)

(74) Representative: Merrifield, Sarah Elizabeth et al
Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road
London WC1X 8BT
London WC1X 8BT (GB)

   


(54) METHOD FOR ESTABLISHING A COORDINATE SYSTEM