Optical bar code scanner having object detection
US5637854A · kind A · utility
62Cited by
14References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1995 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Sep 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2007/10495
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a bar code scanner of the fixed amount type, laser beam reflections from the target location are collected by an object detector that senses predetermined specular reflections and determines whether an object is present or absent, and whether the object has a bar code label or lacks a bar code label.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.