(19)
(11) EP 1 718 986 A1

(12)

(43) Date of publication:
08.11.2006 Bulletin 2006/45

(21) Application number: 04709082.4

(22) Date of filing: 06.02.2004
(51) International Patent Classification (IPC): 
G01S 5/00(2006.01)
H04L 29/06(2006.01)
 G01S 5/14(2006.01)
(86) International application number:
PCT/US2004/003534
(87) International publication number:
WO 2005/085894 (15.09.2005 Gazette 2005/37)
(84) Designated Contracting States:
DE IT

(71) Applicant: SiRF Technology, Inc.
San Jose, CA 95112 (US)

(72) Inventors:
  • YAMAMOTO, Clifford
    Gardena, CA 90249 (US)
  • NONIS, Sebastian
    Carson, CA 90745 (US)
  • PANDE, Ashutosh
    San Jose, CA 95123 (US)
  • BULATOVIC, Nikola
    Santa Clara, CA 95051 (US)
  • WITANIS, Stefan
    Sunnyvale, CA 94086 (US)

(74) Representative: Kramer - Barske - Schmidtchen 
Radeckestrasse 43
81245 München
81245 München (DE)

   


(54) LAYERED HOST BASED SATELLITE POSITIONING SYSTEM AND METHOD