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:
Dec. 22, 2009
Filed:
Jul. 09, 2007
Kenichi Fujisaki, Tokyo, JP;
Kenichi Fujisaki, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
The test apparatus includes: a pattern memory that stores therein data to be outputted to the device under test; a device judgment section that judges whether the device under test passes or fails based on an output signal; the number of data information storage section that stores therein the number of data information based on the number of logic H data included in an input data; a counter that receives output data outputted from the pattern memory to the device under test and counts the number of logic H data included in the output data; a pattern memory judgment section that judges that the data stored in the pattern memory is correct when the number of data information on the input data is corresponding to the number of logic H data counted by the counter and outputs a signal according to this judgment result.