Multi-channel signal processing in an optical reader
US6213399A · kind A · utility
9Cited by
36References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1996 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Feb 9, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A light source and a light detector are included in an optical reader such as a field of view reader or a flying spot scanner for reading a printed indicia such as a bar code symbol. At least two channels associated with the detector carry signals corresponding to light detected by the detector at different resolution levels, allowing a single reader to be used for different resolution levels of the indicia to be read.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.