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:
Jul. 12, 2011
Filed:
Feb. 05, 2009
Satoshi Esaka, Fukuoka, JP;
Masayuki Furuta, Fukuoka, JP;
Masataka Kushigemachi, Fukuoka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In an integrated circuit board, a plurality of integrated circuits to be checked are connected together in a star shape. Operation clock data for JTAG of each integrated circuit and check data for checking each integrated circuit are stored. When an integrated circuit to be checked is specified, operation clock data for JTAG and check data for the specified integrated circuit are determined. With an operation clock for JTAG according to the determined operation clock data for JTAG, the determined check data is input to the specified integrated circuit. Based on the check data and output data output from the integrated circuit to which this check data is input, the integrated circuit board determines a malfunction in the integrated circuit, and then stores the determination result in a storage device.