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:
Nov. 17, 1987
Filed:
Aug. 26, 1986
Applicant:
Inventor:
Walter Truskalo, Titusville, NJ (US);
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H04N / ;
U.S. Cl.
CPC ...
315382 ; 315411 ; 358218 ;
Abstract
An attenuator couples a parabolic voltage developed in a trace capacitance, to a focus electrode. The attenuator includes a phase compensation network that causes the phase of the parabolic voltage that is coupled to the focus electrode to be substantially the same relative to that of the parabolic voltage in the trace capacitor for any scan frequency that is selected from a range of frequencies.