Printer control system including white enlarged line memory for storing expanded white print pixel signals and black enlarged line memory for storing expanded black print pixel signals
US5712963A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 20, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Dec 20, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0458
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printer control system for controlling a print characteristic of a printer for printing a print pixel signal synchronized to horizontal lines of an image. The print pixel signal has an arbitrary horizontal resolution and includes white print pixel signals representing white pixels of the image and black print pixel signals representing black pixels of the image. The printer control system controls the print characteristic of the printer in accordance with a type of the image and includes a white enlarged line memory for receiving the print pixel signal and storing the print pixel signal at timing points spaced a predetermined time apart after expanding any portion of any white print pixel signal in the print pixel signal falling between two adjacent ones of the timing points and having a duration less than the predetermined time to have a duration equal to the predetermined time without expanding any portion of any black print pixel signal in the print pixel signal, and a black enlarged line memory for receiving the print pixel signal and storing the print pixel signal at timing points spaced a predetermined time apart after expanding any portion of any black print pixel signal i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.