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:
Apr. 23, 2002
Filed:
Apr. 08, 1999
Applicant:
Inventors:
Hirohide Kiga, Greensburg, PA (US);
Thomas A. Marflak, Huntingdon, PA (US);
David S. Arnold, Huntingdon, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/30 ;
U.S. Cl.
CPC ...
H04N 9/30 ;
Abstract
A rear-projection television set in which two different dynamic focusing waveforms are used. The first dynamic focusing waveform is used only to focus an electron beam in a CRT generating the blue component of the picture being displayed. The second dynamic focusing waveform is used to focus the electron beam in the CRTs generating the red and green components of the picture being displayed. In this way, the resulting picture is better focused without flare or blue edging and displays better color uniformity over the entirety of the television screen.