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. 03, 2001
Filed:
May. 27, 1999
Dal Frank Griepentrog, Indianapolis, IN (US);
Thomson multimedia Licensing S.A., Boulogne Cedex, FR;
Abstract
Supplementary grid blanking and spot burn protection are provided in a receiver/monitor (,) by a grid bias control circuit (,) including a blanking signal generator (,) that produces a blanking output signal (S,) devoid of any picture representative component whenever a vertical blanking signal (VB) or a horizontal blanking signal (HB) is present. A capacitor (C,) strips DC from the blanking signal and the resultant signal (S,) is applied to a modulation input (,) of a grid bias generator to produce an output grid bias reference voltage (Vr) modulated by the AC component of the blanking signal. The reference voltage (Vr) is coupled via a spot burn protection circuit (,) and a grid coupling circuit (,) to the control grids of three projection kinescopes (,). Distortions which may tend to appear in the grid blanking pulses are corrected by a high frequency correction circuit (,) coupled between an output (,) of the composite blanking generator (,) and an input (,) of the grid coupling circuit (,).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile