Electronic apparatus, control method, and image sensor
US-9451193-B2 · Sep 20, 2016 · US
Solid-state imaging device
US9635296B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9635296-B2 |
| Application number | US-201314428386-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 21, 2013 |
| Priority date | Oct 25, 2012 |
| Publication date | Apr 25, 2017 |
| Grant date | Apr 25, 2017 |
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Abstract
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There is provided a solid-state imaging device capable of correcting a blackening phenomenon caused by intense light, with a small-scale circuit configuration. An AD converter 130 that performs sampling of an output voltage VS on a column signal line 111 includes a comparator 131 that compares the output voltage VS with a ramp-wave reference voltage during a sampling period; a judging circuit 132 that accepts as input an output from the comparator 131 and judges a voltage level of the output voltage VS; and a memory portion 133 that stores, as a digital value, a count value corresponding to the output voltage VS, based on an output from the judging circuit 132 . The comparator 131 amplifies a voltage change of the output voltage VS obtained after a lapse of a reset period in which a voltage of a FD portion 103 in a pixel circuit 100 is reset, and the judging circuit 132 judges, based on the voltage change, whether light received by the pixel circuit 100 is intense light, during a predetermined detection period between the reset period and a period in which an output voltage Vrst obtained after the reset is sampled.
First claim
Opening claim text (preview).
The invention claimed is: 1. A solid-state imaging device that has a plurality of pixel circuits arranged in a matrix form in column and row directions and reads amounts of accumulated charge using a correlated double sampling method, the plurality of pixel circuits converting the amounts of accumulated charge into voltages by photoelectric conversion, and outputting the converted voltages to column signal lines, the solid-state imaging device comprising: AD converters that conver…
Assignees
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Classifications
- H04N25/778Primary
Electricity · mapped topic
Electricity · mapped topic
- H04N25/627Primary
Electricity · mapped topic
Electricity · mapped topic
- H04N5/378Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9635296B2 cover?
- There is provided a solid-state imaging device capable of correcting a blackening phenomenon caused by intense light, with a small-scale circuit configuration. An AD converter 130 that performs sampling of an output voltage VS on a column signal line 111 includes a comparator 131 that compares the output voltage VS with a ramp-wave reference voltage during a sampling period; a judging cir…
- Who is the assignee on this patent?
- Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification H04N25/778. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 25 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).