Method and apparatus for verifying indicia correctly provided on an object
US4900941A · kind A · utility
40Cited by
7References
31Claims
0Family size
Inventors
Key dates
| Filing date | Sep 18, 1987 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Sep 18, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07C3/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A technique for verifying that indicia, such as print indicia, are provided at the correct location(s) on an object. Relative movement between the object and a sensor is provided. If sensed indicia are located at an expected position on the object, an indicia-bearing object is vertified. One or more samples of a proper object are scanned to establish a template which defines those locations at which indicia on the samples are located. This template is used subsequently to verify the presence of proper indicia-bearing objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.