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:
Feb. 02, 2016

Filed:

Mar. 09, 2012
Applicants:

Yoshihisa Warashina, Hamamatsu, JP;

Jun Suzuki, Tono, JP;

Inventors:

Yoshihisa Warashina, Hamamatsu, JP;

Jun Suzuki, Tono, JP;

Assignee:

HAMAMATSU PHOTONICS K.K., Hamamatsu-shi, Shizuoka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 5/00 (2006.01); G01J 5/10 (2006.01); H04N 5/33 (2006.01); G01J 1/44 (2006.01); G01J 5/22 (2006.01); H04N 5/217 (2011.01); G01J 5/24 (2006.01); G01J 5/06 (2006.01); G01J 5/20 (2006.01); H04N 5/357 (2011.01);
U.S. Cl.
CPC ...
H04N 5/33 (2013.01); G01J 1/44 (2013.01); G01J 5/00 (2013.01); G01J 5/22 (2013.01); H04N 5/217 (2013.01); G01J 5/10 (2013.01); G01J 5/24 (2013.01); G01J 2001/444 (2013.01); G01J 2005/0048 (2013.01); G01J 2005/0077 (2013.01); G01J 2005/066 (2013.01); G01J 2005/202 (2013.01); H04N 5/357 (2013.01);
Abstract

Provided is an infrared image sensor for detecting infrared rays. The infrared image sensor includes a light-receiving unit including a pixel region in which a plurality of pixels are arranged and at least one reference pixel; a difference circuit for acquiring a first differential signal that is a differential signal between a signal of one pixel contained in the pixel region and a signal of the reference pixel and a second differential signal that is a differential signal between signals of two predetermined pixels out of the pixels contained in the pixel region; and a pixel signal calculating unit that calculates a signal of each of the pixels on the basis of the first differential signal and the second differential signal.


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