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:
Aug. 10, 2010
Filed:
Jun. 08, 2007
Applicants:
Norimasa Sato, Tokyo, JP;
Kenji Inaba, Tokyo, JP;
Inventors:
Norimasa Sato, Tokyo, JP;
Kenji Inaba, Tokyo, JP;
Assignee:
Advantest Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 19/00 (2006.01); G06F 17/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the digitizer, a plurality of ADCs convert a plurality of analogue signals output from the device to be tested, to digital signals, respectively. The processing circuit is configured as a software-independent circuit and processes a plurality of digital signals output from the plurality of ADCs. The processing circuit is formed on the FPGA. In the processing circuit, the FFT circuit performs complex Fourier transform on two digital signals.