Laser scanning system and scanning method for reading bar codes
US5235167A · kind A · utility
191Cited by
26References
72Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1991 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Jun 14, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1018
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for reading bar code symbols or the like, including one- or two-dimensional bar code symbols having a scanner for generating a laser beam directed toward a target and producing a narrow first raster scanning pattern that enables the user to manually aim and direct the beam to the location desired by the user and a second raster scanning pattern that increases in height which sweeps an entire symbol to be read, and a detector for receiving reflected light from such symbol to produce electrical signals corresponding to data represented by such symbol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.