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. 18, 2006
Filed:
Apr. 16, 2003
Snehali Choksi, Fort Wayne, IN (US);
Robert Joseph Gries, Indianapolis, IN (US);
Kevin Michael Williams, Indianapolis, IN (US);
David Ross Jackson, Indianapolis, IN (US);
Robert Goah Watson, Iii, Noblesville, IN (US);
Snehali Choksi, Fort Wayne, IN (US);
Robert Joseph Gries, Indianapolis, IN (US);
Kevin Michael Williams, Indianapolis, IN (US);
David Ross Jackson, Indianapolis, IN (US);
Robert Goah Watson, III, Noblesville, IN (US);
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
A video display includes a scanner operable at a first frequency and a higher second frequency. A switch mode power supply drives a transformer with three secondaries. First and second rectifiers & filters are associated with the first and second secondaries. A rectifier is coupled to the third secondary and by way of a switch to the first filter. Feedback from the first filter controls the SMPS. In a first operating mode, the scanner is operated at the first frequency, the switch is open, the scanner supply is a first voltage from the first filter, and ancillary equipment is supplied with a third voltage by the second filter. In a second operating mode, the scanner is operated at the second frequency, the switch is closed, the scanner supply is a second voltage, higher than the first, from the first filter, and ancillary equipment is supplied with the same third voltage.