Assignee
POLHEMUS INC
US8 patents
Top patents by PatentIndex Score
US5640170AJun 17, 1997
Position and orientation measuring system having anti-distortion source configuration
POLHEMUS INC281 citations99
US5453686ASep 26, 1995
Pulsed-DC position and orientation measurement system
POLHEMUS INC377 citations97
US5307072AApr 26, 1994
Non-concentricity compensation in position and orientation measurement systems
POLHEMUS INC388 citations96
US6400139B1Jun 4, 2002
Methods and apparatus for electromagnetic position and orientation tracking with distortion compensation
POLHEMUS INC136 citations95
US6762600B2Jul 13, 2004
Method and apparatus for electromagnetic position and orientation tracking with distortion compensation employing a modulated signal
POLHEMUS INC45 citations94
US6624626B2Sep 23, 2003
Method and apparatus for electromagnetic position and orientation tracking with distortion compensation employing modulated signal
POLHEMUS INC63 citations94
US6377041B1Apr 23, 2002
Method and apparatus for determining electromagnetic field characteristics within a volume
POLHEMUS INC62 citations94
US6369564B1Apr 9, 2002
Electromagnetic position and orientation tracking system with distortion compensation employing wireless sensors
POLHEMUS INC118 citations92