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.

Date of Patent:
Apr. 03, 2018

Filed:

Mar. 09, 2016
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Inventors:

Shota Kure, Kawasaki, JP;

Teruhiko Uno, Mitaka, JP;

Assignee:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 5/00 (2006.01); H04N 1/04 (2006.01); H04N 1/028 (2006.01); H04N 1/00 (2006.01); G07D 7/12 (2016.01); G07D 7/121 (2016.01);
U.S. Cl.
CPC ...
H04N 1/02865 (2013.01); G07D 7/12 (2013.01); G07D 7/121 (2013.01); H04N 1/00641 (2013.01); H04N 1/00726 (2013.01); H04N 1/00737 (2013.01); H04N 1/00761 (2013.01); H04N 1/00763 (2013.01); H04N 2201/0081 (2013.01);
Abstract

An image reading apparatus includes a sensor, a light source, and an image-capture controller. The sensor has a sensitivity area that is in a predetermined wavelength band, and acquires an image signal in accordance with light from sheet. The light source has a first light emitting unit that emits first light having a wavelength within the sensitivity area of the sensor, and a second light emitting unit that emits second light that has a wavelength which is outside of the sensitivity area of the sensor and that excites a fluorophore applied on the sheet. The image-capture controller irradiates the sheet with the first light and the second light to acquire a first image signal using the sensor, and irradiates, after acquiring the first image signal, the sheet with only the second light to acquire a second image signal using the sensor.


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