Reading unit for a document
US7142334B1 · kind B1 · utility
3Cited by
10References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1999 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Mar 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/401
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a reading unit (1) for a document (2) having a control and/or evaluation device (44), incorporating a scanner device (25) for reading the document (2), and a guide mechanism (6) for the document (2) and a conveyor device (17) to effect a relative displacement between document (2) and scanner device (25). The control and/or evaluation device (44) cooperates with a compensating device (39) containing corrective values to correct the image signals (37) emitted by an optoelectric transducer (34) of the scanner device (25) in real time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.