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:
Jul. 25, 2017
Filed:
Apr. 21, 2015
Applicant:
Renesas Electronics Corporation, Kanagawa, JP;
Inventors:
Shunsuke Okura, Kanagawa, JP;
Fukashi Morishita, Kanagawa, JP;
Assignee:
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/3745 (2011.01); H01L 27/146 (2006.01); H04N 5/378 (2011.01);
U.S. Cl.
CPC ...
H04N 5/37457 (2013.01); H01L 27/14641 (2013.01); H01L 27/14643 (2013.01); H04N 5/378 (2013.01);
Abstract
The present invention makes it possible to read a pixel signal at high speed. A pixel array includes a plurality of pixels that store an electrical charge. The amount of stored electrical charge is based on the amount of received light. A first pixel current source and a second pixel current source are coupled in parallel between a ground voltage and a pixel output node on a pixel signal read line. A switch is disposed in a wiring path that couples the pixel output node, the second pixel current source, and the ground voltage.