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:
Aug. 27, 2013
Filed:
Apr. 13, 2011
Masanori Ogura, Atsugi, JP;
Toru Koizumi, Yokohama, JP;
Masaru Fujimura, Sagamihara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A photoelectric conversion device prevents a pseudo signal caused by the parasitic capacitance of a transfer switch from being input to an amplifier. A photoelectric conversion device () includes a pixel () which outputs a signal to a signal line (), an amplifier which amplifies the signal supplied via the signal line (), and an isolation switch () inserted between a signal line () and the input node of the amplifier. The pixel () includes a photodiode, a floating diffusion (FD), a transfer switch which transfers the charge of the photodiode to the FD, and an amplification transistor which outputs a signal to a signal line () in accordance with the potential of the FD. The isolation switch () is turned off at least in a period when a transfer pulse for controlling the transfer switch of the pixel () transits.