Optical scanning device having selectable identifiable scan window
US7221487B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2001 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Dec 4, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scan window apparatus for defining and identifying a selected scan window within an overall scanable surface of a scanning device. The scanable surface is defined by intersecting first and second edges. The scan window apparatus includes moveable position markers which can be moved along the first and second edges of the scanable surface to thereby define the selected scan window. A scan window illumination device is used to illuminate the selected scan window. The illumination device can be a light source directed towards the scanable surface, or a directed, focused light source to trace at least a portion of a perimeter which defines the scan window. The invention also provides for an optical scanning device having a platen, a scan window identification device allowing a user to define a selected scan window on the platen, and a scan window illumination device to illuminate the selected scan window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.