Scanner device and control method thereof, and film feeding device
US6542262B1 · kind B1 · utility
6Cited by
11References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1998 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Feb 17, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0416
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to accurately perform correction of focal distance and color of film before pre-scanning, the image at the generally center area of the first frame of film is read in a first pre-scan, auto-focusing and judgment between negative/positive is made, exposure parameters are set in a second pre-scanning, and the image is read in main scanning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.