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:
May. 28, 2019
Filed:
May. 23, 2018
Hewlett-packard Development Company, L.p., Houston, TX (US);
Purdue Research Foundation, West Lafayette, IN (US);
Chuohao Tang, Fremont, CA (US);
Sean Michael Collison, Meridian, ID (US);
Amy Ruth Reibman, West Lafayette, IN (US);
Mark Q. Shaw, Meridian, ID (US);
Jan P. Allebach, West Lafayette, IN (US);
Jay S. Gondek, Camas, WA (US);
Other;
Abstract
In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a lossy compression, at a selected step size, of a difference color table including a plurality of difference nodes in which each difference node represents a difference value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference color table including a first set of difference nodes each representing a difference value that is within an error threshold at the selected step size, and a second set of difference nodes each representing a difference value that is outside an error threshold at the selected step size. The memory device further comprises corrective information to correct the second set of difference nodes of the reconstructed difference color table.