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:
Dec. 12, 2000
Filed:
Sep. 19, 1997
David M Stumfall, Santa Ana, CA (US);
Kazutoyo Sekine, Irvine, CA (US);
Sony Corporation, Tokyo, JP;
Sony Trans Com Inc., Irvine, CA (US);
Abstract
An apparatus and method for reducing interference on a display screen in an in-flight entertainment system, where the interference results from power conversion by a power regulator that supplies voltage to the display screen, is disclosed. The apparatus comprises a clock generator that provides a video clock signal and a regulator clock signal having a frequency that is a multiple of a frequency of the video clock signal. The apparatus also comprises a video processing circuit coupled to the clock generator that provides video data to the display screen at a rate derived from the video clock signal. A regulator circuit that is coupled to the video processing circuit and to the clock generator, supplies voltage to the video processing circuit at a rate based on the regulator clock signal.