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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.:

US 8941898 B1

PDFFull Text
Date of Patent:
Jan. 27, 2015

Filed:

Jul. 16, 2013

Sensor ic, contact image sensor and image reading apparatus

Applicant:

Rohm Co., Ltd., Kyoto-shi, Kyoto, JP;

Inventors:

Hiroaki Onishi, Kyoto, JP;

Kuniaki Nakamura, Kyoto, JP;

Assignee:

Rohm Co., Ltd., Kyoto, JP;

Attorney:

Hamre, Schumann, Mueller & Larson, P.C.

Primary Examiner:

Charlotte M Baker

Assistant Examiner:

Rury Grisham

Int. Cl.
CPC ...
H04N 1/46 (2006.01); G03F 3/08 (2006.01); H04N 1/40 (2006.01); H04N 1/04 (2006.01); H04N 1/60 (2006.01); H01L 27/00 (2006.01); G01J 1/32 (2006.01); H01L 27/146 (2006.01); H04N 5/369 (2011.01); H04N 9/07 (2006.01); H04N 1/031 (2006.01); H04N 1/193 (2006.01); H04N 1/48 (2006.01); H04N 1/12 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14605 (2013.01); H01L 27/14621 (2013.01); H01L 27/14678 (2013.01); H04N 5/3692 (2013.01); H04N 9/07 (2013.01); H04N 1/0318 (2013.01); H04N 1/1938 (2013.01); H04N 1/486 (2013.01); H01L 27/14627 (2013.01); H04N 1/12 (2013.01); H04N 2201/0081 (2013.01); H04N 2201/03112 (2013.01); H04N 2201/03125 (2013.01); H04N 2201/03133 (2013.01); H04N 2201/03141 (2013.01); H04N 2201/03145 (2013.01);
Abstract

A sensor IC of the present invention is provided with plurality of light receiving portions arranged in a row along a primary scanning direction and including a first light receiving portion for receiving light of a first wavelength, a second light receiving portion for receiving light of a second wavelength different from the first wavelength, and a third light receiving portion for receiving light of a third wavelength different from the first wavelength and the second wavelength. The sensor IC further includes a control circuit that outputs a first electric signal corresponding to light of the first wavelength received by the first light receiving portion, a second electric signal corresponding to light of the second wavelength received by the second light receiving portion, and a third electric signal corresponding to light of the third wavelength received by the third light receiving portion.

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