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:
Sep. 15, 1992
Filed:
Oct. 01, 1991
Applicant:
Inventor:
Forest E Jernigan, Morristown, TN (US);
Assignee:
North American Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315411 ; 358190 ; 358243 ;
Abstract
A method and circuit for preventing excessive CRT X-ray production by continually measuring operating parameters of the CRT that are correlated with X-ray production during this operation. The measured parameters are continually compared with predetermined limit values, and various CRT operation controls are adjusted in response to the comparison to maintain the measured parameter values below the predetermined limit values.