Extended range bar code reader
US6845915B2 · kind B2 · utility
23Cited by
11References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2001 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Oct 25, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/453
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A focusing lens is manually moved to extend a range of working distances in which a bar code symbol can be electro-optically read. The lens movement enables reading of close-in and far-out symbols. The lens movement can also be used to change operation between a reading mode and a pointing mode in which a visual display is created on a target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.