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:
Apr. 16, 2013
Filed:
Sep. 24, 2009
Koji Ogino, Minamikoma-gun, JP;
Koji Ogino, Minamikoma-gun, JP;
Nisca Corporation, Minamikoma-Gun, Yamanashi-Ken, JP;
Abstract
An image reading apparatus is provided which enables image data of high S/N ratio with constant resolution to be acquired without fluctuations in resolution over the entire area of an original document, while actualizing the compact image reading apparatus by minimizing the spaces on the opposite end sides in the sub-scanning direction of the platen, has a line light source for applying light to the original document, a carriage installed with the line light source to travel in a sub-scanning direction of the document, a stepping motor for driving the carriage, a line sensor for receiving the reflected light of the document guided by the optical means to convert into image data, and control means for performing traveling control of the carriage, blinking control of the line light source, and control for capturing the image data from the line sensor, and captures the image data from the line sensor while varying a period of a motor clock signal to drive the stepping motor for a duration of acceleration control for starting traveling of the carriage to reach constant-velocity traveling after starting reading of the document.