Method and apparatus for optically reading digital data inscribed in an arcuate pattern on a data carrier
US4416001A · kind A · utility
69Cited by
7References
76Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1980 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Nov 26, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/06037
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Data recorded in non-parallel arcuate paths on a data carrier are read with a laser beam which rotates relative to the data record.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.