The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 1990
Filed:
Nov. 04, 1987
Brian D Schroeder, Lowell, MA (US);
Michael F Deering, Los Altos, CA (US);
Schlumberger Systems, Inc., Sunnyvale, CA (US);
Abstract
An improved method and apparatus for classifying triangles. A description of a triangle in the form of the coordinates of its vertices is supplied to calculation logic. The calculation logic calculates a plurality or parameters of the triangle from these coordinates. These parameters are then provided to a look-up table. The look-up table has previously been programmed to include at each address the proper triangle classification for that address, with each address being a different combination of the parameters. The addresses for the look-up table cover all possible combinations of the parameters, and thus all possible triangles.