Appeal No. 96-0423
Application 08/126,439
different situation would exist for large earth station
satellite antennas. At least with respect to the initial
paragraphs of the background and summary of the invention at
column 1 of Rothbarth, similar assessments are made. Indeed,
it is indicated that on the one hand that while larger dish
sizes of antennas adds to performance, these sizes create
problems of focussing the dish on individual satellites,
keeping them focussed on the desired satellite and also moving
them from satellite to the satellite.
In view of the foregoing, in particular the combined
teachings of the assessment of both of these references of the
prior art, there is a strong suggestibility in our view that
for larger antenna structures there is a need for
automatically changing on a similar periodic basis as done in
Longhurst both the hour angle and the declination. Thus, in
accordance with
the teaching in Rothbarth that the hour angle changes may be
motorized, in conjunction with a similar teaching in Crean,
the artisan clearly would have come to the conclusion that in
order maintain and follow the Figure 8 path of a
8
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