Ramp circuit
US-2024223204-A1 · Jul 4, 2024 · US
Calibration in multiple slope column parallel analog-to-digital conversion for image sensors
US8941527B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8941527-B2 |
| Application number | US-201414257832-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 21, 2014 |
| Priority date | Mar 19, 2012 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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A method of an aspect includes acquiring analog image data with a pixel array, and reading out the analog image data from the pixel array. The analog image data is converted to digital image data by performing an analog-to-digital (A/D) conversion using a multiple slope voltage ramp. At least some of the digital image data is adjusted with calibration data. Other methods, apparatus, and systems, are also disclosed.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: acquiring analog image data with a pixel array; reading out the analog image data from the pixel array; converting the analog image data to digital image data by performing an analog-to-digital (A/D) conversion using a multiple slope voltage ramp; and adjusting at least some of the digital image data with calibration data, wherein adjusting the digital image data comprises: accessing calibration data in a table for a first portion…
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- H03M1/56Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8941527B2 cover?
- A method of an aspect includes acquiring analog image data with a pixel array, and reading out the analog image data from the pixel array. The analog image data is converted to digital image data by performing an analog-to-digital (A/D) conversion using a multiple slope voltage ramp. At least some of the digital image data is adjusted with calibration data. Other methods, apparatus, and systems…
- Who is the assignee on this patent?
- Omnivision Tech Inc
- What technology area does this patent fall under?
- Primary CPC classification H03M1/56. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 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).