Hand-held scan data handling system
US3964022A · kind A · utility
23Cited by
7References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1975 |
| Grant date | Jun 15, 1976 |
| Priority date | — |
| Expiry date | Apr 18, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1018
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Optically reading and processing alphanumeric data using a hand-held wand by passing a two-dimensional array of photosensitive elements horizontally along a line of data to be read. An optical image of the data is focused upon the array to produce digitized outputs which are thresholded to produce a one bit binary code indicating black cells and white cells. A subset of the binary quantities are combined in terms of black segments and white voids to form a plurality of character images while simulating vertical movement of the subset with character recognition attempted upon each simulated increment of vertical movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.