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:
Dec. 13, 2005
Filed:
Feb. 23, 2000
Yoshifumi Maitani, Kyoto, JP;
Michiyuki Suzuki, Nara, JP;
Michiaki Nishimura, Nara, JP;
Kazuya Masuda, Nara, JP;
Noritomo Nakashima, Yamatokoriyama, JP;
Takehiro Kato, Yamatokoriyama, JP;
Yoshifumi Maitani, Kyoto, JP;
Michiyuki Suzuki, Nara, JP;
Michiaki Nishimura, Nara, JP;
Kazuya Masuda, Nara, JP;
Noritomo Nakashima, Yamatokoriyama, JP;
Takehiro Kato, Yamatokoriyama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In the correction of the quantity of light of a light source used in an image reader which irradiates an original document with the light source, receives the reflected light by a CCD and reads the original document image, at the time of a document moving mode in which the document moves, correction of the quantity of irradiation light of the light source is performed by reading a first standard white board which extends over the whole area in the main scanning direction, prior to the initiation of readout of the moving document, and upon initiation of readout of the moving document, a second standard white board arranged outside the document passing area is read by using the same light source, with the read operation of the moving document, and correction of the quantity of irradiation light of the light source is performed based on the reflected light from the second white board.