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. 04, 1999
Filed:
May. 29, 1996
Applicant:
Inventors:
Toshiaki Minami, Isehara, JP;
Tatsuhiko Yamazaki, Isehara, JP;
Hayao Ohzu, Fuchu, JP;
Yuji Hara, Atsugi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
345442 ;
Abstract
A parametric curve generating device for developing a Bezier curve is provided. The device is capable of executing a high speed division operation with a limited magnitude of hardware scale. Adders perform calculations that are stored in registers. Convergence discrimination circuits discriminate whether data stored in the registers converge. Subsequent processing varies depending on the discrimination result. A stack memory is used to store data from the registers.