System for plotting and scanning graphic images
US4992890A · kind A · utility
15Cited by
21References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1989 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Mar 17, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/036
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for scanning or plotting a graphic image. The system deflects (10) a portion of the beam of light (18) by an amount dependent upon the value of a characteristic of a signal (12). A plurality of signals is generated (12), each having a different value of the characteristic. Portions of the beam are deflected along paths (15), such that the pixels created by one portion are disposed along one scan line, while pixels of the other portion are disposed along a successive scan line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.