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. 04, 1979
Filed:
Jan. 10, 1978
Pierre Felix, Paris, FR;
Thomson-CSF, Paris, FR;
Abstract
Process and arrangement for reconstituting the signal representing the thermal flux absorbed by a pyroelectric target, the arrangement being used in infrared camera tubes. It comprises means for correcting the signal Sn for reading a point of co-ordinates x, y of the target, during a frame of order n, comprising means for calculating a first component representing the Laplacian of the signal Sn and means for summating the signal Sn with the first component. The correcting means deliver a corrected signal. Means for generating a complementary signal are connected to the output of the calculating means and comprise means for generating a signal representing the temperature .theta..sub.n-1 of the point of co-ordinates x, y during the reading of that point in the course of a frame of order n-1 and a second component representing the Laplacian of that temperature. Means for summating the complementary signal with the corrected signal deliver the reconstituted signal.