Aiming pattern shape as distance sensor for barcode scanner
US9202094B1 · kind B1 · utility
13Cited by
4References
20Claims
0Family size
Assignee
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Key dates
| Filing date | May 20, 2014 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | May 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1011
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An imaging scanner includes an aiming light source configured to emit visible light through both the shape defining element and the aiming lens arrangement to generate an aiming pattern on a target object. The shape of the aiming pattern changes with the distance between the target object and the imaging scanner. For determining the distance, the shape of the aiming pattern in a pixel data is compared with the expected shape of aiming patterns at multiple distances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.