1
Peter F MacDoran, Donovan J Spitzmesser: Method and apparatus for deriving pseudo range from earth-orbiting satellites. Istac Incorporated, Christie Parker & Hale, January 10, 1989: US04797677 (103 worldwide citation)

The invention permits a user to derive his pseudo range from earth-orbiting, signal-transmitting satellites without knowledge of the code sequence of modulation carried by the signal, if any. A modulated radio frequency signal having a component at a given frequency, which is transmitted from a sate ...


2
Spitzmesser Donovan James, Macdoran Peter Frank: Method and apparatus for deriving pseudo range from earth-orbiting satellites.. Istac, November 14, 1984: EP0124587-A1

The invention permits a user to derive his pseudo range from earth-orbiting, signal-transmitting satellites (10) without knowledge of the code sequence of modulation carried by the signal, if any. A modulated radio frequency signal (fm) having a component at a given frequency, which is transmitted f ...


3
Method and apparatus for deriving pseudo range from earth-orbiting satellites. May 10, 1984: WO/1984/001832

The invention permits a user to derive his pseudo range from earth-orbiting, signal-transmitting satellites (10) without knowledge of the code sequence of modulation carried by the signal, if any. A modulated radio frequency signal (fm) having a component at a given frequency, which is transmitted f ...