Solid state image pickup device and signal reading method thereof
US6784928B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1998 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Dec 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/713
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A solid state image pickup device has a drive unit with an all pixel drive mode for reading all pixels in a horizontal direction and a pixel skip drive mode for reading pixels in the horizontal direction by skipping some pixels, and a plurality of read-out systems for reading pixels. In the all pixel drive mode, signals of pixels are divisionally read by the plurality of read-out systems, and in the pixel skip drive mode, signals of pixels are read by one of the plurality of read-out systems. In this manner, in the pixel skip drive mode, the power consumption can be reduced and a difference between output signal levels to be caused by a variation in characteristics of elements of the read-out system can be suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.