05109194 is referenced by 115 patents and cites 7 patents.

An electromagnetic position and orientation detector. A determination is made by a calculator of the position and the orientation of a mobile sensor as a function of the coupling coefficients measured between each of the coils of the sensor and each of the coils of a transmitter. These measurements are tainted with errors due to the imperfections in gain of the various elements of the transmission and reception channels. To eliminate these errors, a stationary sensor is used whose coupling coefficients with the coils of the transmitter are measured to serve as a reference to correct the coupling coefficients between the coils of the transmitter and of the mobile sensor.

Title
Electromagnetic position and orientation detector for a pilots helmet
Application Number
7/620650
Publication Number
5109194
Application Date
December 3, 1990
Publication Date
April 28, 1992
Inventor
Christian Cantaloube
St Medard En Jalles
FR
Agent
Oblon Spivak McClelland Maier & Neustadt
Assignee
Sextant Avionique
FR
IPC
G01B 7/14
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