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:
Jul. 11, 1978
Filed:
Feb. 01, 1977
Applicant:
Inventor:
Pierre Felix, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358113 ; 250333 ; 250351 ;
Abstract
A method for electrically reading a target such as a pyroelectric one, in a camera tube. It consists in the repetition of a sequence of three phases: reading by an electron beam scanning process, compensation by secondary electron emission and levelling of the potential of the target, the duration of each of the phases being substantially equal to the duration of an analysis line of the target. The last two phases are provided for lines preceding the line read respectively by numbers p and k of lines with p<k.