Document processing device and size determination method thereof
US11523016B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2022 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | May 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00891
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A size determination method for a document processing device is provided. The document processing device includes an automatic document feeding module. The automatic document feeding module includes a support tray, an entrance and a detecting module. The detecting module includes a front-row detector and plural rear-row detectors. The size determination method includes following steps. Firstly, a document with plural originals is placed on the support tray and inserted into the entrance. Then, a selected original of the document is transported. When the selected original is detected by the front-row detector, the plural rear-row detectors are powered on. The selected original is continuously transported, and the plural rear-row detectors are operated in a detection mode. Then, a size of the selected original is determined according to detection results of the plural rear-row detectors and a transfer time of the selected original.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.