Invention Grant
- Patent Title: Image pickup device
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Application No.: US15650170Application Date: 2017-07-14
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Publication No.: US10044950B2Publication Date: 2018-08-07
- Inventor: Fumihide Murao
- Applicant: Renesas Electronics Corporation
- Applicant Address: JP Koutou-ku, Tokyo
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Koutou-ku, Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2016-170500 20160901
- Main IPC: H04N3/14
- IPC: H04N3/14 ; H04N5/335 ; H04N9/64 ; H04N5/217 ; H04N5/355 ; H04N5/3745 ; H04N5/378 ; H04N5/343 ; H04N5/232

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.
Public/Granted literature
- US20180063450A1 IMAGE PICKUP DEVICE Public/Granted day:2018-03-01
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