Print medium feature encoding and decoding
US7905409B2 · kind B2 · utility
3Cited by
60References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2005 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Jun 17, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K1/121
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are disclosed for encoding and decoding codes, such as bar codes, containing a plurality of features, such as bars and spaces of varying widths. In one aspect of the present invention, techniques are provided for encoding information in an arbitrary-length code using a single symbol. Techniques for encoding and decoding information using codes having features with more than two distinct values are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.