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:
Jun. 23, 2009
Filed:
Dec. 27, 2004
Masaaki Saka, Toyokawa, JP;
Kazuhiro Ishiguro, Toyohashi, JP;
Takayuki Nabeshima, Toyokawa, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
An image reading apparatus includes, with the purpose of detecting noise in an image due to dust on a platen, three line sensors, a platen between an original and the line sensors, a moving mechanism for moving the platen, a noise detection processor detecting noise pixels from multiple data output from the line sensors, an order determination unit determining the order in which the noise pixel is detected, based on the order in which the line sensors are arranged and the direction in which the platen is moved, and a noise length calculator predicting the noise length in the sub scanning direction based on the number of noise pixels successive in the main scanning direction, the original transport rate, the platen moving rate, and the distance between the line sensors.