Dual motion scanning method and apparatus therefor
US5687010A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1996 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Feb 15, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0416
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanner device, and the method it embodies, for scanning a document. The scanning includes a pre-scan and a subsequent main scan, with the pre-scan generating data related to the document. The scanner device includes: a scanning assembly having a platen against which the document is positioned and a mobile portion movable along the platen; a document moving device for moving a document in a first direction onto the platen; a mobile-portion-moving device for moving the mobile portion of the scanning assembly in a second direction opposite to the first direction; and a controller for controlling the document moving device and the mp-moving device, and for controlling the scanning assembly to scan the document while the document and the portion of the scanning assembly are both moving. This, for example, substantially reduces instances in which the mobile portion is moving without scanning taking place. When incorporated into a copier device, the controller controls the mobile-portion-moving device and the scanning assembly to perform a main scan as a function of the pre-scan. Such a copier has a reproducing device for reproducing a document based upon an image generated during the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.