Facsimile transmission using enhanced symbol prototypes with precalculated front and back white spaces
US4769716A · kind A · utility
19Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1986 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Oct 17, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4115
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved method is described for transmitting facsimiles of scanned symbols. Prototype facsimiles of each symbol in a library are enhanced by averaging the representations of each scanned symbol with a respective previously created prototype facsimile for that symbol. The amount of white space at opposite sides of each symbol prototype is determined. The enhanced prototype facsimile for each scanned symbol is associated with positional parameters denoting the average white space at said opposite sides of each symbol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.