The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2007
Filed:
Aug. 07, 2002
Applicant:
Mark W. Fagan, Lexington, KY (US);
Inventor:
Mark W. Fagan, Lexington, KY (US);
Assignee:
Lexmark International, Inc., Lexington, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/034 (2006.01);
U.S. Cl.
CPC ...
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.