Sheet identifying apparatus, image reading system, sheet shredding system, non-transitory computer-readable medium, and sheet indentifying method
US8653812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2011 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Aug 17, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2018/0023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sheet identifying apparatus includes: an excitation coil disposed upstream in a passage through which a sheet inserted into an input port passes and wound on an outer periphery of the passage; a first output unit that detects a magnetization variation of a magnetic element due to the excited excitation coil when the sheet having the magnetic element passes through a region of the passage where the excitation coil is disposed in a state where an AC current is applied to the excitation coil and that outputs a first detection signal when the magnetization variation is detected; and a second output unit that detects that the sheet passes through a region downstream in the passage on the basis of a characteristic of the sheet without using the magnetic element and that outputs a second detection signal when detecting that the sheet passes through the region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.