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. 19, 2000
Filed:
Sep. 26, 1997
Applicant:
Inventor:
Kazuyuki Maruo, Sendai, JP;
Assignee:
Advantest Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382141 ; 382149 ; 382240 ; 382260 ;
Abstract
An input digital image data is subject to a Wavelet transform on a screen on which the image is formed, an image energy quantity for a combined area of X-axis high pass information and Y-axis high pass information contained in the image data which results from the Wavelet transform is calculated, and it is determined if an object being examined is acceptable or faulty depending on whether the image energy quantity is below or above a given value.