(19)
(11) EP 0 235 285 A1

(12)

(43) Date of publication:
09.09.1987 Bulletin 1987/37

(21) Application number: 86906510.0

(22) Date of filing: 25.08.1986
(51) International Patent Classification (IPC): 
G01S 1/ 00( . )
G01S 19/ 29( . )
 G01S 11/ 10( . )
G01S 19/ 30( . )
(86) International application number:
PCT/US1986/001765
(87) International publication number:
WO 1987/001540 (12.03.1987 Gazette 1987/06)
(84) Designated Contracting States:
DE FR GB IT NL SE

(30) Priority: 03.09.1985 US 19850771755
03.09.1985 US 19850771754

(71) Applicant: MOTOROLA, INC.
Schaumburg, IL 60196 (US)

(72) Inventors:
  • JANC, Robert, Vincent
    Palos Heights, IL 60463 (US)
  • JASPER, Steven, Charles
    Hoffman Estates, IL 60195 (US)

   


(54) APPARATUS FOR AND METHOD OF DOPPLER SEARCHING IN A DIGITAL GPS RECEIVER