Owner Trimble Navigation Limited

Inventors Cobb, Stewart H.; Lawrence, David G.; Montgomery, Paul Y.; Zimmerman, Kurt R.

Agent Spruson & Ferguson

Pub. Number AU-B-2009248477

Parent 2005280524

Filing date 14 December 2009

Wipo publication date 7 January 2010

Acceptance publication date 5 July 2012

G01S 3/02 Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received - using radio waves

G01S 1/00 Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters

G01S 5/14 Position-fixing by co-ordinating two or more direction or position-line determinations - Determining absolute distances from a plurality of spaced points of known location

G01S 19/25 Satellite radio beacon positioning systems

G01S 19/31 Satellite radio beacon positioning systems

G01S 19/44 Satellite radio beacon positioning systems

G01S 19/46 Satellite radio beacon positioning systems