Electronic camera
US6567123B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 8, 1998 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Oct 8, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/76
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic camera is disclosed, which comprises a CCD image pick-up device 3, a CCD driver 19 for setting the photoelectric charge accumulation time of the CCD image pick-up device, an image pick-up circuit 4 including gain control means, for processing a signal from the CCD image pick-up device to obtain an image signal, and CPU 17 for sequentially executing an AE, an AF and an AWB process according to an AE, an AF and an AWB evaluation values obtained by using the image signal. The gain of the image signal is updated by adding ⅓ of the change in a gain setting value obtained in the AE process executed by the CPU for each frame. The image brightness is thus varied smoothly to provide movie images not giving any sense of uncomfortability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.