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:
Sep. 03, 1996
Filed:
Feb. 06, 1995
Applicant:
Inventor:
Kazuo Hiraoka, Chiba-ken, JP;
Assignee:
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
318632 ; 318677 ; 425149 ;
Abstract
A basic gain providing unit provides a basic gain K0. A boundary detecting unit divides a nonlinear characteristic of a controlled variable component into a plurality of partial characteristics with a boundary interposed between two adjacent ones of the partial characteristics and detects each boundary. A gain changing unit changes the basic gain in response to an output of the boundary detecting unit.