Data distribution mechanism in the form of ink dots on cards
US6918542B2 · kind B2 · utility
149Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2003 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Feb 3, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data structure encoded on a surface of an object, and a method of generating such a data structure. The data structure includes a plurality of block data regions. Each of the block regions includes an encoded data region containing data in encoded form, a clock mark structure located adjacent a first peripheral portion of the encoded data region, and a target structure located adjacent the clock mark structure. Each of the block data regions further includes an orientation data structure indicative of an orientation of the data structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.