Tracking sensor specially for computer applications

Details Tracking sensor specially for computer applications Tracking sensor specially for computer applications

1996-08-28

1998-08-04

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including polarized signal communication transmitter or...

342465, 342457, H01Q 2106

Patent

active

057900760

ABSTRACT:
The multi-dimensional tracking sensor especially for virtual reality and other real time computer applications. The disclosure describes an electro-magnetic (EM) tracking sensor that consists of a small lightweight transmitter with a transmitting antenna located on the target to be tracked and an array receiver with several local stationary antenna elements (FIG. 1). Multiple antenna elements of the array receiver lie on the perimeter of the measured space in positions determined by a self-calibration procedure. The proposed device calculates a cross correlation function between two signals at each receiving unit to determine a spatial position of the tracked element.

REFERENCES:
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patent: 3996590 (1976-12-01), Hammack
patent: 4746924 (1988-05-01), Lightfoot
patent: 4792806 (1988-12-01), Bent et al.
patent: 5280457 (1994-01-01), Figueroa et al.
patent: 5365516 (1994-11-01), Tandrell
patent: 5570099 (1996-10-01), DesJardins
patent: 5630208 (1997-05-01), Enge et al.

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