Coded label information extraction method
US6817536B1 · kind B1 · utility
1Cited by
9References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 2002 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Feb 4, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10851
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method of interpreting coded information carriers, a plurality of magnetic elements supported by, or incorporated in, a substrate, are interrogated. The relative positions and/or physical dimensions of the magnetic elements represent the information encoded by the information carrier. The relative positions and/or physical dimensions are determined from the relative velocity between an interrogating signal and each of the magnetic elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.