Inventor

KHALFIN IGOR

US7 patents

⚠️ This page may combine multiple inventors who share the name “KHALFIN IGOR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

POLHEMUS INC

5 patents

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

SIXENSE ENTERTAINMENT INC

1 patent

US9459124B2Oct 4, 2016

Electromagnetic tracker (AC) with extended range and distortion compensation capabilities employing multiple transmitters

SIXENSE ENTERTAINMENT INC7 citations82

PENUMBRA INC

1 patent

US11428546B2Aug 30, 2022

Method and apparatus for synchronizing multiple magnetic tracking systems

PENUMBRA INC0 citations51