Efficient method for reading an imaging device using correlated double sampling
US9648257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Dec 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for reading an imaging device intended for capturing images in a detector including a large number of photosensitive points called pixels organized into a matrix. The pixels of the same column are linked to a column conductor enabling the successive reading of the photosignals acquired by the pixels of the column, the method consisting for each of the pixels in carrying out a correlated double sampling read phase, the read phase comprising an operation of resetting the pixel followed by two read operations, the first without the photosignal, and the second with the photosignal. Three steps are concatenated in succession for the pixels of the same column:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.