Boots – shoes – and leggings
Patent
1992-05-08
1994-09-20
Black, Thomas G.
Boots, shoes, and leggings
36442402, 395 90, 318587, G06F 1520
Patent
active
053495330
ABSTRACT:
A path analyzer for determining if a specified path is blocked by a given solid obstacle in three dimensional space. A programmable comparator converts path endpoints into first and second map signals, wherein each map signal indicates whether the corresponding path endpoint's position on predefined X, Y and Z coordinate axes is above, below or within a range of coordinate values associated with a specified obstacle. The specified obstacle is modelled as a rectangular parallelepiped, regardless of the actual shape of the obstacle. A first high speed decoder uses these map signals to make an initial determination as to whether the specified path is blocked, not blocked, or may be blocked by the specified obstacle. Whenever the first decoder determines that the path may be blocked, a second decoder determines the minimum number of additional computations needed to resolve whether the specified path is blocked. Depending on the number of sides of the specified obstacle that are "in view" of the specified paths's endpoints, one to three pairs of path intersection computations are required. In the preferred embodiments a dedicated computational unit is used to perform the calculations specified by the decoder to resolve whether the specified path is blocked. The dedicated computation unit is preprogrammed to perform six different pairs of computations, corresponding to the six sides of the obstacle. The second decoder determines which pairs of computations have to be performed for any particular path blockage determination.
REFERENCES:
patent: 4862373 (1989-08-01), Meng
patent: 4888707 (1989-12-01), Shimada
patent: 5047916 (1991-09-01), Kondo
patent: 5056031 (1991-10-01), Nakano et al.
patent: 5150026 (1992-09-01), Seraji et al.
patent: 5150452 (1992-09-01), Pollack et al.
patent: 5229941 (1993-07-01), Hattori
Black Thomas G.
Day Julie D.
Lockheed Missiles & Space Company Inc.
Morrissey John J.
LandOfFree
System and method for collision checking between solid objects a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for collision checking between solid objects a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for collision checking between solid objects a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2430457