Digital camera with variable gain to offset exposure error
US6100928A · kind A · utility
27Cited by
11References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1997 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Jul 18, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/72
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a digital camera, a gain for a variable gain amplifier is controlled by a controller so that when a signal level of an image signal for a CCD is corrected by the variable gain amplifier, a quantization error or an exposure error generated when a shutter speed is set by a unit of CCD electric charge sweep-away pulse will be offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.