System for clearing an image data buffer in a high-speed digital printing apparatus
US5946459A · kind A · utility
3Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1997 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Sep 29, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0082
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for clearing a buffer for holding bitmap data output by a decomposer or interpreter in a digital printing apparatus exploits a decompressor chip. Instead of having the processor directly write blank data into the buffer to clear the buffer, a "buffer clear" software utility sends compressed blank image data to the decompressor chip, which in turn decompresses the blank image and writes the decompressed blank image to the necessary location in the buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.