System and method for illuminating and reading optical codes imprinted or displayed on reflective surfaces
US7163149B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2004 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Aug 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10742
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical code reading system and method are provided for reading optical codes imprinted or displayed on, or behind, reflective surfaces. The system includes an extended light source, including one of a backlight assembly and a frontlight assembly, emitting an extended-beam light for directly illuminating an optical code, at least one image sensor for sensing light reflected by the optical code and generating signals related to at least one image of the optical code, and at least one processor for processing at least a portion of the signals, generating a decodable image corresponding to the signals, and decoding at least a portion of the decodable image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.