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. 07, 1982
Filed:
Dec. 31, 1980
Applicant:
Inventors:
Bernard Grancoin, Paris, FR;
Christian Pepin, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358213 ;
Abstract
Camera having means for the automatic regulation of the sensitivity of a charge transfer detector functioning by vertical frame transfer. These means comprise a loop for controlling the video signal by varying the integration time of electrons in the image area of the CTD sensor, as well as an optical attenuating device for chopping said area during each period of transferring the collected charges into the store. The attenuator has at least one fixed disk and one movable disk controlled in rotation, the disks carrying optical densities or being made of polarizers.