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:
Jan. 10, 2023
Filed:
Sep. 22, 2021
Kohsuke Nambara, Kanagawa, JP;
Tadaaki Oyama, Kanagawa, JP;
Ayumu Hashimoto, Kanagawa, JP;
Masamoto Nakazawa, Kanagawa, JP;
Kohsuke Nambara, Kanagawa, JP;
Tadaaki Oyama, Kanagawa, JP;
Ayumu Hashimoto, Kanagawa, JP;
Masamoto Nakazawa, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A reading device includes a first light source, a second light source, a first reading unit, a second reading unit, a comparison unit, and a correction unit. The first source irradiates an object to be read, with first light having a first transmittance to the object. The second source irradiates the object with second light having a second transmittance to the object. The first reading unit reads the first light from the object to output first image data. The second reading unit reads the second light from the object to output second image data. The comparison unit compares a data difference between the first and second image data. In a case where the data difference is equal to or larger than a threshold, the correction unit corrects data of an image area having the data difference equal to or larger than the threshold in the first or second image data.