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:
Aug. 10, 1982
Filed:
Jul. 21, 1980
Applicant:
Inventor:
Loren B Johnston, Princeton, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315383 ; 315366 ; 315367 ;
Abstract
The minimum output level of an electron gun driven at discrete voltage levels is precisely established. A target value slightly above the minimum voltage level is compared with the actual value. The result of the comparison is used to uniformily establish the minimum electron gun drive voltage and thus compensates for electron gun transfer characteristic differences and variations within the gun drive circuitry. An additional circuit utilizing a target value slightly below the maximum voltage can be used to establish the maximum output level of the electron gun.