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:
Nov. 25, 2014
Filed:
Dec. 09, 2011
Applicants:
Masahiro Ishida, Tokyo, JP;
Daisuke Watanabe, Tokyo, JP;
Toshiyuki Okayasu, Tokyo, JP;
Kiyotaka Ichiyama, Tokyo, JP;
Inventors:
Masahiro Ishida, Tokyo, JP;
Daisuke Watanabe, Tokyo, JP;
Toshiyuki Okayasu, Tokyo, JP;
Kiyotaka Ichiyama, Tokyo, JP;
Assignee:
Advantest Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01); G01R 31/26 (2014.01);
U.S. Cl.
CPC ...
Abstract
A pattern generator generates a pattern signal which represents a test signal to be supplied to a DUT. A driver generates a test signal having a level that corresponds to the pattern signal, and outputs the test signal thus generated to the DUT. A voltage modulator changes, in a predetermined voltage range, the voltage level of the test signal output from the driver DR.