Image halftone generation by static RAM look-up table
US5041920A · kind A · utility
27Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1989 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Nov 15, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4051
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A halftone conversion system for converting digital pixels to binary pixels in which individual matrices in a memory having progressively changing x, y matrices of binary pixels are addressed by an address composed of a block of x pixels including the pixel being processed, a block of y lines including the line containing the pixel being processed, and the digital value of the pixel being processed, the pixel located at the x, y coordinates of the addressed matrix providing the binary pixel output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.