Products with data encoding pattern
US7559484B2 · kind B2 · utility
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2References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2005 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Jan 24, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03545
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A product 2 has a data encoding pattern 6 thereon. The pattern comprising a plurality of pattern cells 200 each of which has a pattern selected from a group of cell patterns. Each cell pattern comprises a plurality of cell elements 204 each of which can have any of a plurality of marking states, such that the marking states of the elements produce the cell pattern. Each cell pattern has at least two lines of symmetry. At least some of the cells are arranged in a manner which is dependent on the position of the content
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.