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 8Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 NextLast modified: November 3, 2007