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:
Mar. 15, 2005
Filed:
Mar. 16, 2000
Applicants:
Hiroshi Toriya, Tokyo, JP;
Tsuyoshi Harada, Tokyo, JP;
Makoto Yajima, Tokyo, JP;
Akira Wakita, Tokyo, JP;
Inventors:
Hiroshi Toriya, Tokyo, JP;
Tsuyoshi Harada, Tokyo, JP;
Makoto Yajima, Tokyo, JP;
Akira Wakita, Tokyo, JP;
Assignees:
Ricoh Company, Ltd., Tokyo, JP;
Lattice Technology, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T017/00 ;
U.S. Cl.
CPC ...
Abstract
A method of generating a free-form surface model includes the steps of applying linear transformation to a lattice polygon model to generate vertices of a free-form surface model corresponding to respective vertices of the lattice polygon model, and generating control points of cubic Bezier curves that connect the vertices of the free-form surface model, and that correspond to respective edges of the lattice polygon model.