Digital video camera with automatic white balance and a method thereof
US7554601B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 1, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Apr 8, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/88
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a digital video camera performing white balance adjustment according to a photographing condition. The digital video camera with automatic exposure comprises an iris state detector for outputting an electrical signal with a predetermined magnitude corresponding to the status of an iris, a memory for saving a threshold value to be compared with the magnitude of the electrical signal, and a controller for comparing the magnitude of the electrical signal output from the iris state detector with the threshold value, determining the photographing condition after a predetermined determination time is elapsed, and adjusting the determination time according to the difference between the magnitude of the electrical signal and the threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.