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:
Sep. 14, 2004
Filed:
Nov. 27, 2001
Jean-Luc Martin, Saint-Geoire-en-Valdaine, FR;
Eric Mottin, Saint-Martin-le-Vinoux, FR;
Arnaud Laflaquiere, Grenoble, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
A device for generating an image from an IR radiation including a plurality of polarized heat detectors ( ) having specific electric resistances distributed over the focal plane of a detection module so as to deliver a signal representing a detected IR radiation. A read module ( ) converts the electric signal into a signal usable by an image processing block ( ). An electric signal compensation module ( ) having a first branch ( ) for obtaining a first thresholding to extract a first constant value signal due to the polarization of the heat detectors. The compensation module ( ) includes a second branch ( ) for obtaining a second thresholding to extract from the first thresholding signal a second low-level signal due to the dispersion of the electric resistances of the heat detectors and/or to the fluctuations in the temperature of the focal plane of the detection module.