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:
Jan. 21, 1997
Filed:
Feb. 23, 1996
Applicant:
Inventors:
Kenichiro Hosoi, Tokyo, JP;
Takashi Iwami, Tokyo, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
31536818 ; 348807 ;
Abstract
A convergence correcting device in a CRT display apparatus is free from any necessity of adjustment of a convergence correction rate even if a raster size is changed. The convergence correcting device generates a modified blanking pulse having a pulse width which becomes larger as an amplitude of a deviated voltage becomes larger, and generates a convergence correction signal in accordance with the modified blanking pulse.