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:
May. 23, 1989
Filed:
May. 23, 1988
Cornelis A Boon, The Hague, NL;
Arnoldus J Boudewijns, Eindhoven, NL;
Adrianus J Frensch, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A picture display device for displaying a picture by means of a line raster consisting of a plurality of lines which are successively scanned in the opposite direction includes a video signal processing circuit for receiving an incoming video signal comprising video information and synchronizing signals and for supplying the video information of a line in one direction and the video information of the subsequent line in the opposite direction, and a line deflection circuit for generating a line deflection current through a line deflection coil. To minimize the power which is dissipated in the line deflection circuit, this circuit constitutes a self-oscillating stage with its natural frequency which is determined by a resonant network comprising the line deflection coil and which is independent of the frequency of the line synchronizing signal in the incoming video signal.