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:
Oct. 18, 1994
Filed:
Mar. 12, 1993
Noriyuki Kamada, Tokyo, JP;
Masataka Uchida, Tokyo, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
A deflection and high voltage circuit produces a proper luminance level and a focusing performance in a CRT image irrespectively of changes in a luminance signal level. The circuit is provided with a voltage control circuit for controlling an output voltage level of a voltage supply circuit according to changes in the anode voltage of the CRT so that a voltage obtained by rectifying a voltage generated by the secondary winding of flyback transformer, i.e., the anode voltage of the CRT is made constant. Furthermore, the circuit is provided with a correction circuit for preventing a voltage across the terminals of a S-curve correction capacitor determining the H-size of the CRT image from being affected by the variation of the output voltage level of the voltage supply circuit.