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:
Mar. 19, 2024
Filed:
Oct. 28, 2021
Applicant:
Entrust Corporation, Shakopee, MN (US);
Inventor:
Ethan Yanna, Shakopee, MN (US);
Assignee:
Entrust Corporation, Shakopee, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 13/12 (2006.01); B41J 2/325 (2006.01); B41J 2/365 (2006.01);
U.S. Cl.
CPC ...
B41J 13/12 (2013.01); B41J 2/325 (2013.01); B41J 2/365 (2013.01);
Abstract
Thermal printing on plastic cards where the energization of each individually energizable heating element of a thermal printhead is adjusted based on a temperature of the thermal printhead and a density of the pixel to be printed. For each pixel, the printhead temperature and the pixel density of a pixel to be printed are used to adjust the strobe pulse length that energizes the heating element to print that pixel. By compensating for both printhead temperature and pixel density, a tighter tolerance of the resulting printed densities is achieved.