Calibration in multiple slope column parallel analog-to-digital conversion for image sensors
US8941527B2 · kind B2 · utility
1Cited by
4References
10Claims
0Family size
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Key dates
| Filing date | Apr 21, 2014 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Apr 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/77
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.