Patent ID: 6900837

Claim:
An image sensor, which is a MOS type image sensor composed of a pixel array region and an optical black region disposed at the one end in said pixel array region, comprising: a mode selection means for selecting a local access mode that selects a local part of said pixel array region or a random access mode that selects a part of said pixel array region at random or a frame access mode that selects all of said pixel array region; and a pixel reading region deciding means for deciding a pixel reading region in which one or more pixels whose information is read are disposed in said pixel array region, in case that said mode selection means selects said local access mode or said random access mode, wherein: every one selected horizontal line address in said pixel reading region, information of said one or more pixels in said selected horizontal line address in said pixel reading region is read; and after this, information of one or more pixels in said selected one horizontal line address in said optical black region is read.