Signal processing of recording medium indicia
US8251478B2 · kind B2 · utility
2Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2008 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | May 30, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1753
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of processing a time-varying output signal from a photosensor is provided. The time-varying output signal corresponds to a plurality of marks or indicia on a recording medium moving into and out of a field of view of the photosensor with the marks having been printed on the recording medium by a printing system. The method includes amplifying the time-varying output signal from the photosensor; converting the amplified time-varying output signal from the photosensor to digitized data points using an analog to digital converter; and averaging a plurality of the digitized data points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.