Solid-state imaging device, method of manufacturing the same, and electronic apparatus
US-2017110502-A1 · Apr 20, 2017 · US
Pixel sensor cell with hold node for leakage cancellation and methods of manufacture and design structure
US9106854B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9106854-B2 |
| Application number | US-201414449557-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 1, 2014 |
| Priority date | Oct 4, 2010 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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A reference pixel sensor cell (e.g., global shutter) with hold node for leakage cancellation, methods of manufacture and design structure is provided. A pixel array includes one or more reference pixel sensor cells dispersed locally throughout active light sensing regions. The one or more reference pixel sensor cells provides a reference signal used to correct for photon generated leakage signals which vary by locality within the active light sensing regions.
First claim
Opening claim text (preview).
What is claimed: 1. A method of compensating for leakage in a pixel array comprising: providing a known voltage signal to a reference pixel sensor cell in proximity to an active pixel sensor cell; reading out an output voltage signal of the reference pixel sensor cell and calculating the leakage as a difference between the known voltage signal and the output voltage signal; adding the calculated leakage to an output voltage signal of the active pixel sensor cell; and holding…
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Electricity · mapped topic
Electricity · mapped topic
- H04N25/625Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9106854B2 cover?
- A reference pixel sensor cell (e.g., global shutter) with hold node for leakage cancellation, methods of manufacture and design structure is provided. A pixel array includes one or more reference pixel sensor cells dispersed locally throughout active light sensing regions. The one or more reference pixel sensor cells provides a reference signal used to correct for photon generated leakage signa…
- Who is the assignee on this patent?
- IBM
- What technology area does this patent fall under?
- Primary CPC classification H04N25/625. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 11 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).