Systems and methods for efficient print job compression
US7969616B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2007 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Apr 27, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/1285
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods described herein provide for an efficient method for print job compression. In some embodiments, threshold halftone lookup tables directed to specific object types are used to compare pixel data for specific detected objects. Pixel data for such specified objects may be encoded using the appropriate object-specific threshold halftone lookup table into one of two multi-bit values, which serve to increase the frequency of repetitive or redundant encoded data and permit efficient compression by algorithms that exploit data repetition and/or redundancy. The methods described herein are applicable to a variety of printers, including raster and PDL printers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.