Apparatus and method for data compression optimized by print head architecture
US7289243B2 · kind B2 · utility
2Cited by
27References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2002 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Dec 5, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/1814
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method to compress data for a print head divides print head nozzle firetime instructions into a plurality of bytes. A control word represents each byte by one bit. Bytes containing data are set from a host computer to a printer. Empty bytes are represented by a “0” in the corresponding bit in the control word. Empty bytes are omitted from transmission. At decompression, omitted bytes are treated as blank space. Bytes are organizing according to print head architecture, nozzle array and printing sequence, for example, in even and odd groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.