Scannable barcode display and methods for using the same
US6877661B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 16, 2001 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | May 10, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/06028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for implementing a wireless data transmission scheme through the use of a display capable of displaying symbolic information, a data acquisition device capable of identifying and capturing said displayed information and a mitigation device adapted to allow the data acquisition device to capture the symbolic information. The symbolic information may be a barcode displayed on an LCD outputting linearly polarized light. The data acquisition device may be a laser scanner, and the mitigation device may be a quarter wave retarder located between the display and the scanner. A larger system may utilize this wireless system or a different front end in a more generalized backend information transfer system. The backend system may include a centralized data center adapted to be used with retail couponing, ticketing, digital receipts, or a plurality of other information systems in which data is used separately from its storage location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.