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:
Dec. 27, 1988
Filed:
Nov. 12, 1986
Applicant:
Inventor:
Jean L Ploix, Issy les Moulineaux, FR;
Assignee:
Thomson-CGR, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; H04N / ;
U.S. Cl.
CPC ...
378 99 ; 358111 ;
Abstract
In a radiology installation equipped with a picture-tube video camera for producing images in rapid succession, the electron beam of the camera tube has a first intensity at the time of readout of one image on the sensitive tube surface and a second non-zero intensity of substantially lower value than the first between readout of one image and write-in of the next. A control circuit for modifying the grid voltage of the camera tube is accordingly provided for varying the intensity of the electron beam.