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. 13, 2007
Filed:
Jul. 13, 2004
Kotaro Shimamura, Chiyoda-ku, JP;
Naohiro Ikeda, Chiyoda-ku, JP;
Takeshi Takehara, Chiyoda-ku, JP;
Hitachi, Ltd., Chiyoda-ku, JP;
Abstract
A controller that receives an input of a status of an apparatus, executes predetermined arithmetic and logical operations, and outputs a control signal of the apparatus, and is equipped with a plurality of processors for executing the arithmetic and logical operations; a plurality of data storage elements for storing respective results of the arithmetic and logical operations of the plurality of the processors; a comparator for comparing the results of the arithmetic and logical operations of the plurality of the processors stored in the plurality of the data storage elements; and a comparison record storage element for storing a record of the comparison results of the comparator.