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. 07, 2018
Filed:
Jul. 14, 2017
Renesas Electronics Corporation, Tokyo, JP;
Fumihide Murao, Tokyo, JP;
Renesas Electronics Corporation, Koutou-ku, Tokyo, JP;
Abstract
In a related-art image pickup device, there is a problem that the power consumption increases. A semiconductor device includes a plurality of pixel circuits connected to one vertical signal line SL, and an inverting amplification circuit configured to amplify a signal level obtained through the vertical signal line SL with an amplification factor determined according to a capacitance ratio between an input capacitor Ci and a feedback capacitor Cf, in which the feedback capacitor Cf is disconnected from an output of the inverting amplification circuit and connected to the vertical signal line SL in a charge recovery period set in a period between a first timing and a second timing, the first timing being a timing when amplification of an image pickup signal read from a first pixel circuit by the inverting amplification circuit has been completed, the second timing being a timing when amplification of a dark level signal read from a second pixel circuit by the inverting amplification circuit is started.