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:
Feb. 26, 2008
Filed:
Mar. 28, 2003
Kazuyoshi Tsutsumi, Shizuoka-ken, JP;
Kazuyoshi Tsutsumi, Shizuoka-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
A color image reading apparatus includes a light source, first and second photoelectric conversion devices, first and second document size detection units and a control unit. The first photoelectric conversion device obtains first electric signal information at a first speed and the second photoelectric conversion device obtains second electric signal information at a second speed higher than the first speed. The first document size detection unit detects a document size based on the first electric signal information and the second document size detection unit detects a document size based on the second electric signal information. The control unit controls, at the time of forward scanning by the light source, so as to detect the document size by the second document detection unit.