Optical reader, optical reading method and optical reading system
US6474555B1 · kind B1 · utility
7Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1999 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Nov 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10613
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical reader for optically reading recorded code data and determining whether the reading is successful or not. In the optical reader, a frequency of coincidence of read data from start of reading is compared with a predetermined reference frequency when it is determined that the reading is successful after the reading of the code data is repeatedly tried to determine a stability of reading, so that a signal showing a result of the determination is output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.