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:
Oct. 28, 1980
Filed:
Apr. 30, 1979
Applicant:
Inventors:
Robert H Bickley, Scottsdale, AZ (US);
Michael J Dewey, Tempe, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315383 ; 315 30 ;
Abstract
Apparatus for controlling the intensity of a display on a cathode ray tube wherein the control signals are DC through several megahertz and a control loop maintains the average value of the control signal on the grid of a cathode ray tube relatively constant. Low frequency and high frequency signals are applied to the tube through separate circuits which are coupled together to provide coincident high pass and low pass -3 db crossover points so that all control signals applied to the tube are substantially equal over the entire bandwidth.