Patent ID: 7907132

Claim:
An egocentric display that corresponds to a multidimensional frame of reference, the multidimensional frame of reference including: an ego center, a nadir representing the maximum angular elevation from a horizon plane to below the ego center, and a zenith representing the maximum angular elevation from the horizon plane to above the ego center, the egocentric display comprising: a) a center point, the center point representing the nadir; b) an inner concentric circle centered about the center point, the inner concentric circle representing the horizon plane, the horizon plane being perpendicular to a zenith-nadir line, the zenith-nadir line passing through the zenith, the ego center, and the nadir; and c) an outer concentric circle centered about the center point, the outer concentric circle having a radius larger that the inner concentric circle, the outer concentric circle representing the zenith.