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:
Mar. 20, 2001
Filed:
Apr. 18, 1994
Yoshiyuki Takeda, Yokohama, JP;
Nikon Corporation, Tokyo, JP;
Abstract
An image reading device that detects the edge of the image to be read and masks the areas outside the edge during the read. The image reading device includes a light transmittance modification device in the optical path between the image illumination source and the photoelectric conversion device. During a pre-scan of the image, the position of the edge of the image is stored in a memory unit. During the actual scan of the image to be read, the edge data is fed to the modification device for each position of the scanner. The modification device blocks out those portions of the area being scanned that are outside the image. In this manner, the image is read while the border area is masked.