Optical information reader and optical information reading method
US8864035B2 · kind B2 · utility
16Cited by
2References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Feb 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10861
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A decoder 20 of a code scanner 1 measures a distance to a baggage 4 based on a reflection light by the baggage 4 of a laser light 15a outputted by a laser light generator 15, which is detected by a CMOS image sensor 13, adjusts focus of a focus lens 11 and irradiation light amount of illumination by a pulse LED 14 at image pickup based on the measured distance, analyzes the image including a code symbol 5 on the baggage 4 whose image is picked up under conditions after the adjustments, and decodes information indicated by the code symbol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.