Method and apparatus for rendering large patterns in a small memory printer
US7280250B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Jul 11, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/1828
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of performing a pattern fill operation of a pattern into a clipping region divides dividing the pattern into a plurality of bands. For each band the method renders the band as a bit map into a band cache. For each tiling of the pattern into the clipping region the method clips the bit map of a current band to the clipping region and copies the clipped bit map into a corresponding location of a page bit map. The plurality of bands of the pattern are preferable aligned with scan lines of the printed page. The bands may correspond to individual scan lines. The method select the number of bands so that each band may be stored within a predetermined amount of band cache memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.