Hand-held optically readable character set reader having automatic focus control for operating over a range of distances
US5837987A · kind A · utility
176Cited by
25References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1996 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Nov 19, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1018
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hand-held optically readable information set reader having one or more photosensor arrays, at least one information set illuminator, and an information set image transfer system for projecting a readable image of an information set onto the one or more photosensor arrays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.