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:
Jun. 15, 1993
Filed:
Mar. 02, 1992
Applicant:
Inventors:
Karl R Koblitz, Meylan, FR;
James A Wilber, Indianapolis, IN (US);
Enrique Rodriguez-Cavazos, Indianapolis, IN (US);
Assignee:
Thomson Consumer Electronics, Inc., Indianapolis, IN (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315398 ; 358 10 ;
Abstract
A sawtooth signal generator of a D.C. coupled vertical deflection circuit is responsive, during service mode of operation, to a first signal at a D.C. level that is indicative of vertical centering. During the service mode operation, the generation of the sawtooth signal is disabled and, instead, the generator generates a D.C. signal that is D.C. coupled via a vertical deflection amplifier to a vertical deflection winding in a manner to position an electron beam at the vertical center of a display screen.