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:
Aug. 25, 1992
Filed:
Jun. 25, 1991
Hiroshi Kano, Tsuzuki, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A sublimation type thermal transfer color video printer generates a heating pulse having a duration corresponding to the tone level of the pixel to be printed, according to the data in a reference tone table stored in a memory, to energize the corresponding heating element of a thermal heat during the duration. The tone table includes a variable data which is the basis of determining the duration of the first energizing pulse required up to right before the coloring of a recording paper, and a fixed data which are the bases of determining the durations of subsequent energizing pulses. A variable value multiplied by these fixed data is set in a separate register. The variable data in the tone table and the variable value in the register are rewritten according to change in temperature of the thermal head.