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. 11, 1988
Filed:
Sep. 29, 1987
Applicant:
Inventor:
Giovanni M Leonardi, Zurich, CH;
Assignee:
RCA Licensing Corporation, Princeton, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315371 ; 315370 ;
Abstract
A gullwing distortion correction signal and a north-south pincushion distortion correction signal are generated and then summed to form a sum signal. The sum signal is coupled to a primary winding of a transformer. A secondary winding of the transformer is coupled in a current path of a vertical rate deflection current for modulating the deflection current in a manner that reduces the gullwing and north-south pincushion distortions. The secondary winding is included in a resonant circuit that is tuned to resonate at the horizontal frequency.