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:
Jul. 22, 2003
Filed:
Dec. 18, 2001
Dirk Verdyck, Merksem, BE;
AGFA-Gevaert, Mortsel, BE;
Abstract
A method for printing an image using a thermal printing system comprising a thermal printer having a thermal head TH incorporating a plurality of energisable heating elements H and a thermographic material m, comprises several steps. These steps comprise supplying image data Id corresponding to a plurality of output values D to a processing unit, reading a first table LUT1 comprising first entries for desired output values D and second entries for sequences S of time slices s of activation pulses, transformation of the image data Id into corresponding sequences S of time slices of activation pulses, providing the time slices of activation pulses to the heating elements H of the thermal head TH, and printing the image by transporting the thermographic material past and adjacent to the thermal head and by activating the heating elements H of the thermal head. Herein, the transformation of the image data Id comprises a step of establishing a relation between output values D or D which are both continuous and monotone and in the latter case linear as well, and corresponding sequences S of time slices s of activation pulses.