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:
Feb. 23, 1999
Filed:
Dec. 19, 1995
Applicant:
Inventors:
Daniel D Haas, Webster, NY (US);
Sanwal P Sarraf, Pittsford, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
347187 ; 347252 ; 347251 ; 358298 ;
Abstract
A laser thermal system that uses a dye donor produces a desired relationship of exposure to density by modifying the input current waveform supplied to the exposure source. The modification is a combination of amplitude modulation and pulse width modulation in an imagewise fashion. The efficiency and the speed of image formation is increased by bringing the dye donor temperature near the threshold of dye transfer using a segment of the total current waveform for a very short duration.