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. 10, 2002
Filed:
May. 26, 1999
Rick Wayne Miller, Carmel, IN (US);
Thomson Licensing S.A., Boulogne, FR;
Abstract
A video display deflection circuit includes a source of a video signal for displaying picture information contained in the video signal in a screen of a cathode ray tube. The video signal provides selectively on-screen-display information and non-on-screen-display information. A source of a first control signal has a first value, when the video signal provides on-screen-display information and a second value, when said video signal provides non-on-screen-display information. A waveform generator is responsive to the first control signal for generating a second signal at a frequency that is related to a deflection frequency having a first waveform, when the video signal provides on-screen-display information, and a second waveform, that is different from the first waveform, when the video signal provides non-on-screen-display information. A modulator generates a modulated correction signal by modulating, in accordance with the second signal, a time-derivative signal produced from the video signal, The correction signal is coupled to a scan velocity modulation winding to produce scan velocity modulated deflection of the electron beam.