Device for scanning pale color marks on a printing machine
US5215011A · kind A · utility
22Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1992 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | May 6, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F33/0081
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for scanning marks printed on workpieces travelling under a light source includes at least two parallel mark scanning channels emitting an electric impulse due to passage of a mark, each channel being sensitive to a particular color. The device incudes, moreover, electronics for selecting a most representative mark impulse among the electric impulses emitted by the channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.