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. 12, 1985
Filed:
Aug. 07, 1984
Applicant:
Inventor:
Heikki Kanerva, Helsinki, FI;
Assignee:
Philips Medical Systems, Shelton, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
378110 ; 378112 ;
Abstract
A method and apparatus for regulating and stabilizing the radiation intensity level of an X-ray source. The apparatus includes high voltage circuitry for supplying anode and cathode voltages to an X-ray tube and filament voltage circuitry for supplying voltage to the filament of the tube. Both the high voltage and filament voltage circuitry are regulated by multiple feedback voltage level control circuits. The method of the present invention involves the forming of the high voltage and filament voltage circuitry and the supplying of appropriate feedback signals to such circuitry to maintain the high voltages and filament voltage at desired levels.