05913820 is referenced by 380 patents and cites 21 patents.

Methods and apparatus are provided for locating the position, preferably in three dimensions, of a sensor by generating magnetic fields which are detected at the sensor. The magnetic fields are generated from a plurality of locations and, in one embodiment of the invention, enable both the orientation and location of a single coil sensor to be determined. The present invention thus finds application in many areas where the use of prior art sensors comprising two or more mutually perpendicular coils is inappropriate.

Title
Position location system
Application Number
8/392955
Publication Number
5913820
Application Date
May 30, 1995
Publication Date
June 22, 1999
Inventor
Alan Patrick Anderson
Sheffield
GB
John Stuart Bladen
Sheffield
GB
Agent
Nixon & Vanderhye P C
Assignee
British Telecommunications public company
GB
IPC
A61B 5/05
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