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. 13, 2004
Filed:
Apr. 12, 2001
Ichiro Yamane, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A data processor includes first and second devices that are coupled together via a signal path. The first device includes a first arithmetic unit. The first arithmetic unit performs an arithmetic operation on data to obtain a first result during an operation cycle, in which the first device transfers the data to the second device through the signal path. The first arithmetic unit outputs the first result onto the signal path during an idle cycle in which no data is transferred through the signal path. The second device includes second arithmetic unit and comparator. The second arithmetic unit performs the same type of arithmetic operation on the data, transferred through the signal path in the operation cycle, to obtain a second result. The comparator compares the first result, transferred through the signal path in the idle cycle, to the second result and outputs a comparison result.