System for reading optical indicia
US6688523B1 · kind B1 · utility
175Cited by
59References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1998 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Nov 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/147
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A portable hand-held reader unit includes a photosensor array, optics for focusing optical indicia on the array, a decoder for remotely decoding optical indicia, and a communication link between the hand-held reader and the decoder for communication between the reader and the decoder. In an additional embodiment, the portable hand-held reader unit includes a marker source disposed adjacent the optical reader unit for projecting marker onto a surface region exterior of the predetermined area so as to delineate the predetermined area and the information contained therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.