Patent ID: 7626529
Filing Date: 2009-12-01
Classification: H03M

Abstract:
1. A method for digitizing an analog quantity (V E ) produced by a detector of electromagnetic radiation, in particular infrared radiation, said detector comprising a matrix of juxtaposed elementary sensors, whose interactions with said radiation generate said analog quantity (V E ), the method comprising the steps consisting, for each line or for each column of said matrix: in carrying out a first integration phase of said analog quantity over a first time interval using an integrator stage; in ordering the interruption of said first integration phase via a comparator stage whereof one input is connected to the output of said integrator stage and the other input to a reference circuit delivering a reference value (V in converting the analog quantity thereby integrated (V in storing said first numerical value (B) in the form of a first binary number representing the most significant bits; wherein said method further comprises the steps consisting, for each line or for each column of said matrix: