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. 06, 1981
Filed:
Feb. 04, 1980
Applicant:
Inventor:
William V Fitzgerald, Indianapolis, IN (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315397 ; 315403 ;
Abstract
A resonant retrace vertical deflection circuit comprises a retrace capacitor which forms a resonant circuit with the yoke vertical deflection windings during retrace of the electron beams. One or more diodes isolate the yoke from the circuit power supply to allow the yoke voltage to increase beyond the level of the supply to provide faster retrace. A second power supply is provided to precharge the retrace capacitor prior to retrace, resulting in a further decrease in retrace time.