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:
Jan. 11, 2011
Filed:
Jun. 19, 2007
Applicants:
Katsunori Hirano, Yokohama, JP;
Tadanobu Toba, Yokohama, JP;
Yuji Sonoda, Hiratsuka, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a circuit board on which a plurality of CPUs are mounted, the CPUs comprises: monitor units for outputting task statuses of the respective CPUs; and a diagnosis circuit connected to the plurality of CPUs, comparing and judging combinations of the task statuses of the plurality of CPUs based on information on task statuses outputted from the monitor units, and detecting false operations and failures of the circuit board.