Laser print apparatus that generates pulse width value and justification value based on pixels in a multi-bit image
US7280246B2 · kind B2 · utility
1Cited by
11References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2003 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Sep 19, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/47
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laser print apparatus includes a memory for storing a multi-bit image including a plurality of pixels. Each pixel is represented by an N-bit value, wherein N is greater than one. A modulation code generator analyzes three adjacent pixels. The three adjacent pixels include a left pixel, a center pixel, and a right pixel. The modulation code generator is configured to generate a pulse width value based on the value of the center pixel, and a justification value based on the values of the left pixel and the right pixel. A laser print engine forms an output pixel on media based on the pulse width value and the justification value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.