Appeal No. 1999-1344
Application 08/364,718
lines 23-26. Lewis teaches a high resolution vision system in
which remotely located sensors controlled by head and eye
tracking means generate signals that are transmitted to signal
processing means on the helmet to produce a display image
having a wide field of view that is maintained on the
operator's line of sight. See Lewis, column 1, lines 10-13.
Beckman teaches a virtual reality flight control system having
six degrees of freedom of acceleration or velocity control.
Beckman, column 4, lines 30-35.
However, we find no objective teaching in either Lewis or
Beckman that would lead one of ordinary skill in the art to
combine the references. Lewis relates to the sensing of
images outside an actual aircraft and addresses the problem of
remotely sensing and displaying images within a pilot's focus.
Consequently, Lewis' reference system merely involves the
pilot's line-of-sight (LOS). Beckman involves a virtual
reality flight control system and addresses the problem of
flight simulation in outer space. Therefore, Beckman uses six
degrees of freedom in a more complicated reference coordinate
system that permits greater combinations of translations and
rotations. Beckman and Lewis are directed to disparate
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