Document having an encoded data structure
US7234645B2 · kind B2 · utility
278Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2004 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Jul 6, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/94
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printed document includes a data structure encoded on a surface of at least one page of the document, the data structure comprising a plurality of block data regions. Each block data region includes: an encoded data region containing data in encoded form; a plurality of clock mark structures located on mutually opposite sides 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.