(19)
(11) EP 1 581 821 A2

(12)

(43) Date of publication:
05.10.2005 Bulletin 2005/40

(21) Application number: 04700654.9

(22) Date of filing: 07.01.2004
(51) International Patent Classification (IPC)7G01S 1/00
(86) International application number:
PCT/US2004/001184
(87) International publication number:
WO 2004/063761 (29.07.2004 Gazette 2004/31)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 09.01.2003 US 438967 P

(71) Applicant: Mobile Satellite Ventures LLP
Reston, VA 20191-5416 (US)

(72) Inventor:
  • CHURAN, Gary, G.
    Annandale, VA 22203 (US)

(74) Representative: Naismith, Robert Stewart et al
Marks & Clerk Scotland 19 Royal Exchange Square Glasgow, G1 3AE
Scotland
Scotland (GB)

   


(54) NETWORK-ASSISTED GLOBAL POSITIONING SYSTEMS, METHODS AND TERMINALS INCLUDING DOPPLER SHIFT AND CODE PHASE ESTIMATES