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. 28, 2001
Filed:
Sep. 15, 2000
Mustek Systems Inc., , TW;
Abstract
An alignment pad is set in front of the image sensor. A lens is set between the alignment pad and the image sensor. The alignment pad includes a set of boundary alignment patterns. At least one sets of resolution analysis patterns are formed on the alignment pad. Each set of the resolution analysis pattern includes a horizontal analysis resolution pattern and a vertical resolution analysis pattern. The horizontal analysis resolution pattern is consisted of a plurality of vertical lines to analyze the horizontal resolution of the lens. The vertical resolution analysis pattern is consisted of a plurality of oblique lines to analyze the vertical resolution of the lens. The signals detected by the image sensor is fed to an application specific integrated circuits (ASIC) to generate a collation data. Subsequently, the collation data is fed into a buffer to store the data. A computer is responsive to these signal, and displays the collation data on the monitor in gray mode for collation.