Portable image scanner having manual or automatic feed
US5644663A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1995 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | Apr 10, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0436
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A portable image scanner capable of selecting a manual document loading mode in which a cover member is united to a scanner body to feed a cut-sheet document through a document passage defined between the united scanner body and cover member for scanning the document, or a self-propelling mode in which the cover member is separated from the scanner body to move the independent scanner body on a thick document such as a book. The scanner body has a document sensor for detecting the cut-sheet document placed in the document passage in the manual document loading mode, and the thick document in the self-propelling mode to prevent the scanner body moving on the document from falling out of the edge of the thick document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.