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:
Mar. 02, 1982
Filed:
Sep. 19, 1979
Takeshi Kureha, Kadoma, JP;
Matsushita Electric Industrial Company, Limited, Osaka, JP;
Abstract
A convergence circuit for use in a color television image display system comprising a modulator receiving at one input a first signal at the line frequency of the deflection circuit and at another input a second signal at the field frequency of the deflection circuit, a quadrant separator for separating the modulated signal into four sections in accordance with the polarity of the modulated signal and the respective first and second half periods of the field scan to generate four control currents corresponding respectively to the corners of a rectangular raster. The control currents are supplied through respectively adjustment potentiometers to a convergence coil to permit independent convergence of scanned points in the corners of the screen.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile