Pixel array, image sensor having the pixel array and method for removing flicker noise of the image sensor
US7280135B2 · kind B2 · utility
11Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2003 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Aug 3, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There are provided a pixel array capable of detecting and removing a flicker noise, an image sensor employing the pixel array and an automatic flicker noise detecting method capable of effectively detecting and removing the flicker noise of the image sensor. For the purpose, a pixel array of an image sensor includes a pixel group, having N×M number of unit pixels, for detecting an image signal, N and M being integers, and a pixel column, allocated along a row direction of the pixel group, for detecting an average frequency of a corresponding pixel row to thereby detect the flicker noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.