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:
Apr. 05, 2011
Filed:
Apr. 30, 2008
Ken Koseki, Kanagawa, JP;
Tsutomu Haruta, Kanagawa, JP;
Yukihiro Yasui, Kanagawa, JP;
Yasuaki Hisamatsu, Kanagawa, JP;
Ken Koseki, Kanagawa, JP;
Tsutomu Haruta, Kanagawa, JP;
Yukihiro Yasui, Kanagawa, JP;
Yasuaki Hisamatsu, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An NchMOS transistor Qon the input side of a current mirroris made function as a voltage operating-point setting portion so that a pixel signal line potential (voltage of a horizontal signal line) would be constantly stable nearly at the GND. Then, an amplification factor and linearity become good in an amplification transistor in the solid imaging deviceA current copieris made function as a current sampling portion so as to receive a signal current IIN of the solid imaging devicethrough the current mirrorto carry out sampling of a pixel signal in a resetting period in the shape of current component as the pixel signal is. Calculating differential between a current component in a detecting period and an offset current, which is the current component in a resetting period in sampling, allows an offset component included in the pixel signal to be removed and only pure signal Isig to be picked up at an output terminal Iout, so that the FPN restraining function can be fulfilled.