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. 21, 2014
Filed:
Aug. 15, 2012
Masaya Igawa, Shizuoka, JP;
Satoshi Komatsu, Tokyo, JP;
Hiroyuki Okada, Tokyo, JP;
Koushi Takano, Tokyo, JP;
Takao Sakurai, Tokyo, JP;
Masaya Igawa, Shizuoka, JP;
Satoshi Komatsu, Tokyo, JP;
Hiroyuki Okada, Tokyo, JP;
Koushi Takano, Tokyo, JP;
Takao Sakurai, Tokyo, JP;
NEC AccessTechnica, Ltd., Shizuoka, JP;
NEC Engineering, Ltd., Tokyo, JP;
Abstract
An original document size detection device of the present invention is characterized by comprising a document reading table, a light source which irradiates an original document placed on the document reading table, a cover body which covers the original document, a light detection unit which detects a reflected light that a light from the light source is reflected by the original document and an external light that enters the surface of the document reading table when the cover body is lifted, a masking unit which masks an output signal based on the external light in the output signal of the light detection unit based on the reflected light and the external light, and a determination unit which determines a size of the original document in a main scanning direction based on the output signal of the light detection unit that is masked by the masking unit.