Patent ID: 7652260
Filing Date: 2010-01-26
Classification: G01T,H04N

Abstract:
1. Particle detection circuit comprising a plurality of basic circuits each comprising a particle detection element connected to associated counting means delivering counting signals representative of the number of particles detected by the corresponding detection element, each basic circuit comprising a summing circuit having first and second inputs and an output, the first input of the summing circuit of a basic circuit being connected to the output of the associated counting means, a preset number of basic circuits constituting a pixel in which the summing circuits are connected in series between an input of the pixel, formed by the second input of the summing circuit of a first basic circuit of the pixel, and an output of the pixel, formed by the output of the summing circuit of a last basic circuit of the pixel and supplying counting signals representative of the number of particles detected by all the basic circuits of the pixel.