Appeal No. 2002-0767
Application No. 09/382,381
the invention is more particularly set forth in the following
passages from pages 4 and 5 of the specification:
[i]t is another feature to utilize a method of
simultaneously measuring, with GPS receivers, the
displacement of ILS receiver antennas from installed
GPS antenna locations on the aircraft.
It is another advantage of the present invention to
provide a quick and cost-effective method for
establishing the guidance control points and the
necessary corrections resulting from the frequent
separation of GPS antennas, which are often midship and
on the top of the aircraft, from ILS antenna locations,
which are often in the nose or tail sections.
The present invention is an apparatus and method for
retrofitting GLSs on aircraft previously fitted with
ILSs and A/Ps or FCCs, which is designed to satisfy the
aforementioned needs, provide the previously stated
objects, include the above-listed features and achieve
the already articulated advantages. The present
invention is carried out in an "antenna separation
error-less" manner in a sense that the errors
introduced by the physical separation of GPS antennas
from glideslope and localizer antennas have been
greatly reduced.
Accordingly, the present invention is a GLS which uses
guidance control points and the separation of these
points from installed GPS antennas, to generate and
utilize precise glideslope and localizer deviation
signals.
Independent claims 1, 14 and 18 are representative of the
subject matter on appeal. A copy of those claims may be found in
the Appendix to appellants' brief.
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