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. 05, 1991
Filed:
Mar. 28, 1989
Applicant:
Inventors:
Tadashi Okamoto, Ibaraki, JP;
Noboru Azusawa, Ibaraki, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ; G06F / ;
U.S. Cl.
CPC ...
364133 ; 364136 ; 364187 ; 371-91 ; 371 36 ;
Abstract
A multiplex control system has controllers for delivering control data to at least one common controlled system, and a multiplex mode switching device which is constructed to permit the logic for selecting the control data to be changeably set therein. The mode selection logic of the multiplex mode switching device can be set and changed freely by the user so that a desired logic is obtainable for the selection of the control data from the controllers, whereby the adaptability and utility of the multiplex control system are increased.