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:
Aug. 20, 1985
Filed:
Jan. 31, 1984
Hendrik ten Pierick, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A circuit for generating a deflection current through the field deflection coil of a picture display device having a sawtooth generator, a combining stage, a multiplying circuit and an amplifier. Applied to the combining stage is a sawtooth signal generated by the sawtooth generator and a sawtooth signal originating from feedback. The combining stage generates three linear combinations of these input signals. Two linear combinations are applied to the multiplying circuit for obtaining a parabolic signal which is applied to a signal input terminal of the amplifier, whereas the third linear combination is applied to the feedback input terminal of the amplifier. The series arrangement of the deflection coil and a separating capacitor is coupled to the output terminal of the amplifier, a feedback network being included between the said series network and the combining stage.