Information coding techniques
US6889906B1 · kind B1 · utility
2Cited by
16References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2000 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Oct 20, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/06028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Magnetically or optically detectable elements are arranged on a substrate so as to encode information to be stored. An information carrier comprises a plurality of individual detectable elements supported by, or incorporated in, a substrate wherein the spacing between the elements serves to encode the information and is such that it can be represented as A+MG, wherein A is a first fixed value, m is an integer (which may be zero) and G is a second fixed value, characterized in that the values of the integer m, are selected to be integers derived by a predetermined mathematical sequence or a random sequence generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.