Patent ID: 7242427

Claim:
An X-Y address type solid state image pickup device, comprising: a plurality of pixel regions arranged in a matrix form in regions defined by a plurality of horizontal selection lines and a plurality of vertical selection lines, wherein each pixel region including a photoelectric transducer for performing photoelectric conversion of incident light, an amplifier for converting an electric charge stored in the photoelectric transducer into image data, and a horizontal selection switch for outputting the image data to a predetermined one of vertical selection lines on the basis of a horizontal selection signal outputted to a predetermined one of horizontal selection lines; a noise cancel circuit for removing a noise superimposed on the image data; and an image averaging circuit disposed in the noise cancel circuit for carrying out an averaging processing of the image data after the end of the noise cancel operation outputted from at least two of the plurality of pixel regions, wherein the noise cancel circuit includes, for each of the vertical selection lines, a correlated double sampling circuit in which an electric charge corresponding to the image data after removal of the noise is held in a first capacitance, and the image averaging circuit includes a first averaging processing switch for connecting a plurality of the first capacitances to average a plurality of the electric charges.