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:
Nov. 11, 2014
Filed:
Oct. 31, 2011
Takamasa Sakuragi, Machida, JP;
Takamasa Sakuragi, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An imaging device includes a pixel section and an amplification unit which amplifies the signal of the pixel section. The amplification unit includes an input capacitor having first and second nodes, an amplification circuit, a first feedback capacitor connected between the input capacitor and an output portion of the amplification circuit, a first MOS transistor switch connected in series with the first feedback capacitor, a second MOS transistor switch which is connected in series with the first feedback capacitor, and has a drain and a source connected to each other, a second feedback capacitor connected between the input capacitor and the output portion, a third MOS transistor switch connected in series with the second feedback capacitor, and a fourth MOS transistor switch which is connected in series with the second feedback capacitor, and has a drain and a source connected to each other.