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:
Jun. 19, 2001
Filed:
Mar. 05, 1999
Christopher Michael Tainer, Strongsville, OH (US);
Codonics, Inc., Middleburg Heights, OH (US);
Abstract
A thermal imaging system for compensating for the temperature dependent changes in thermal elements of a thermal printhead is disclosed. Specifically, the thermal imaging system generates a temperature or energy dependent profile of the resistances of each thermal element which makes up the thermal printhead. Based upon this profile, the imaging system estimates the resistances of thermal elements based upon a pixel density to be transferred to media. Based upon the estimated resistances, the imaging system adjusts the amount of energy to be applied to particular thermal elements for transferring a pixel having a density which more closely approximates the density of a corresponding pixel in a desired image.