Paper conveying apparatus
US8934115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2014 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Feb 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00637
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There are provided a paper conveying apparatus that can precisely determine the presence of occurrence of a jam by a jam sound. The paper conveying apparatus includes an analog sound signal generator for generating an analog sound signal corresponding to a sound generated by the paper during conveyance of the paper, a corrected signal generator for generating a signal acquiring the peak hold of the analog sound signal or a signal detecting the analog sound signal as a corrected signal, a digital converter for sampling the corrected signal and converting the corrected signal to a digital format to generate a digital sound signal, and a sound jam detector for determining whether a jam has occurred based on the digital sound signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.