Image reading device
US11943413B2 · kind B2 · utility
0Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2023 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Jan 4, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0094
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A document platen on which a document is placed; and a reading sensor having a light source for irradiating the document with light, are provided, and the reading sensor performs first scanning for irradiating the document with light at a first light quantity, and then performs second scanning for irradiating the document with light at a second light quantity greater than the first light quantity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.