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:
Jul. 03, 1979
Filed:
Feb. 22, 1977
Charles H Anderson, Rocky Hill, NJ (US);
Frank J Marlowe, Kingston, NJ (US);
RCA Corporation, New York, NY (US);
Abstract
In an image display, the video information may be keyed to the position of the electron beam by sensing the beam deflection voltage. A keying system utilizes means for generating a reference voltage which is proportional to the anode voltage and means for comparing the reference voltage to the deflection voltage for the electron beam. When a predetermined relationship between the two voltages, such as equality, is reached; the comparing means produces an output which indicates the deflected position of the electron beam. The output of the comparing means can be used to switch the video information to modulate the electron beam.