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. 17, 1998
Filed:
Sep. 18, 1995
Applicant:
Inventors:
Mitsuru Watabe, Urizura-machi, JP;
Hideaki Ishikawa, Mito, JP;
Assignee:
Hitachi, Ltd., , JP;
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60276 ; 60277 ; 324537 ; 123688 ;
Abstract
A driving device for a plurality of sensors or a plurality of actuators comprises a measuring unit for measuring currents flowing through the sensors or the actuators, and a switching arrangement for selectively energizing the sensors or the actuators. The driving device measures a current flowing through each of the sensors or the actuators by means of a single measuring unit, which is time shared.