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:
Mar. 24, 1981
Filed:
Dec. 28, 1979
Applicant:
Inventors:
Hugh C Hilburn, Glendale, AZ (US);
Thomas W Spilsbury, Phoenix, AZ (US);
Assignee:
Sperry Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315382 ; 315 / ;
Abstract
Apparatus is provided for effecting automatic dynamic compensation of the focal characteristics of electron beam tubes having substantially flat viewing faces, compensation in terms of two dynamic inputs including low frequency components primarily representing display brightness and high frequency components primarily representing electron beam displacement.