Method enabling a scanning range of a normal scan to map a predetermined range selected under preview in a scanning device
US6515780B1 · kind B1 · utility
0Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Dec 11, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method enabling a scanning range of a normal scan to map a predetermined range selected under preview in a scanning device is provided. The present invention is characterized in calculating excess control pulses sent to a stepping motor resulting from accumulated pixels during respective exposure times at different scanning resolutions, and accordingly determining the number of control pulses required to send to the stepping motor for a normal scan for scanning a predetermined range selected under preview, so as to exactly map the scanning range of the normal scan to the predetermined range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.