Coded label and code reader for the coded label
US4286146A · kind A · utility
72Cited by
10References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1979 |
| Grant date | Aug 25, 1981 |
| Priority date | — |
| Expiry date | Jan 12, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/06037
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A coded label comprising a code pattern in which first and second segments respectively being substantially square and having reflection factors different from each other are arranged in at least four rows and two columns, and in which at least two of either of the first and second segments are arranged in each column and at least one is arranged in each of the uppermost and lowermost rows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.