Imaging apparatus for processing noise signal and photoelectric conversion signal
US7692704B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2004 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Nov 3, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging apparatus includes a pixel unit having a photoelectric conversion section and an amplifying device for amplifying a signal from the photoelectric conversion section and outputting the signal, a reading unit having a first mode in which a signal obtained by resetting an input section of the amplifying device is sampled a plurality of times via the amplifying device and a second mode in which a photoelectric conversion signal generated in the photoelectric conversion section is sampled a plurality of times via the amplifying device; a mixing unit for generating a first mixing signal by mixing the signals that are sampled in the first mode, outputting the first mixing signal, generating a second mixing signal by mixing the signals that are sampled in the second mode, and outputting the second mixing signal; and a difference processing unit for performing difference processing between the first mixing signal and the second mixing signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.