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:
Jan. 30, 1979
Filed:
Mar. 02, 1977
Applicant:
Inventor:
Robert J Brandon, Jr, Toronto, CA;
Assignee:
Rolls-Royce (1971) Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
250402 ; 2504 / ;
Abstract
In pulsed X-ray fluoroscopy in which the fluoroscopic screen receiving the X-rays is subsequently observed by a video recording system incorporating an image intensifier, the quality of the video image is impaired because of electrical noise and phosphor flare. The image quality is improved by reducing the gain of the video system synchronously with the occurrence of each X-ray pulse. In addition, the residual disturbance left on the video output is stabilized by synchronizing the video framing cycle frequency with the X-ray pulse frequency.