Method of and apparatus for eliminating quadrature-generated...

Details Method of and apparatus for eliminating quadrature-generated... Method of and apparatus for eliminating quadrature-generated...

2008-06-24

2008-06-24

Phan, Dao L (Department: 3662)

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

Directive

Beacon or receiver

C342S388000

Reexamination Certificate

active

07391369

ABSTRACT:
A technique for reducing radio frequency signal navigation errors in systems such as Loran-C and the like, comprising the use of an orthogonally crossed pair of antenna windings on a ferrite cross, tuned to the carrier radio frequency to generate from the received signals both in-phase and quadrature circulating current components, and providing for the eliminating only of the quadrature current components.

REFERENCES:
patent: 4142142 (1979-02-01), Arce
patent: 5796366 (1998-08-01), Grebnev et al.
patent: 6204821 (2001-03-01), Van Voorhies
patent: 6239760 (2001-05-01), Van Voorhies
patent: 6561022 (2003-05-01), Doyle et al.

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