Electro-optical scanner having selectable scan pattern
US5988502A · kind A · utility
15Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Jan 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A wavelength selector in an optical scanner is operative for selecting a first laser beam having a predetermined wavelength to produce a first scan pattern, and for selecting a second laser beam having a different wavelength to produce a second scan pattern. The scan patterns have a different number of scan lines. The selected scan pattern is scanned over indicia, e.g., a bar code symbol, to be read.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.