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:
Dec. 31, 1991
Filed:
Apr. 26, 1990
Applicant:
Inventors:
Kerry L Shaklee, Brighton, CO (US);
Thomas A Sturm, Littleton, CO (US);
John C Wittenberger, Littleton, CO (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315383 ; 315381 ;
Abstract
A circuit which compensates for the effects of drift that occur during the operation of a cathode ray tube because of temperature changes or aging and which produces changes in intensity of the picture on the cathode ray tube by sensing the intensity changes and varying the bias on the second grid of the cathode ray tube to restore the desired intensity.