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:
Oct. 16, 2001
Filed:
Nov. 20, 2000
Satoru Kiyohara, Kyoto, JP;
Kunio Muraji, Kyoto, JP;
Dainippon Screen Mfg. Ltd., , JP;
Abstract
An image scanning technique of the present invention shortens the time required for reading images of a plurality of originals set on an original tray. The positions of a lens,and a line of CCDs,are adjusted, so as to enable a scanning range of the line of CCDs,in a primary scanning direction to cover a plurality of originals. A first shooting range Z,of the line of CCDs,covers four trimming areas Tr,,Tr,, Tr,, and Tr,. The procedure of the image scanning technique first reads white reference data of a white reference plate in the first shooting range Z,, then scans the four trimming areas Tr,, Tr,, Tr,, and Tr,while fixing the shooting range to the first shooting range Z,, and carries out shading correction to correct image data obtained by the scan with the white reference data. This structure requires the process of scanning the white reference plate and updating the white reference data only once for correcting the image data of the plurality of originals.