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:
Nov. 23, 1999
Filed:
Nov. 06, 1997
Kazuhiro Igarashi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
Before the execution of simulation, variation rates at the grid points of functions for the calculation of intersections between grid points and the surface of the shape to be analyzed of a simulation model are calculated; new grid spacings are calculated by performing calculation so that the greater the variation rate the narrower the grid spacing; and where, with respect to these grid spacings, aspect ratios far deviate from 1, finite difference grids are automatically optimized by adjusting the grid spacings so that the aspect ratios approach 1. Furthermore, during the execution of simulation, the variation rates of functions, whose values are physical quantities at different grid points, are calculated, and finite difference grids are automatically optimized by performing calculation so that the greater the the variation rate the narrower the grid spacing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile