Look ahead shutter pointer allowing real time exposure control
US6529242B1 · kind B1 · utility
31Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1998 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Mar 11, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/77
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Look ahead shutter pointer used for exposure control determination. One shutter is used to remove the pixels from reset. This begins the integration process. The pixels are integrated by turning them on one by one and sampling their outputs sometime later. The amount of time between turning them on and sampling them can be varied. This can be done while the system is being used. In the preferred embodiment the time of exposure is changed at the interface between two frames to avoid problems in the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.