Patent ID: 6534757
Filing Date: 2003-03-18
Classification: H04N

Abstract:
An image input apparatus, comprising:first and second image sensor chips, each of said first and second image sensor chips including a plurality of light-receiving elements; a noise reduction circuit adapted to reduce noise contained in an output of each of said first and second image sensor chips; an adjustment circuit adapted to adjust signals read out from the plurality of light-receiving elements included in each of first and second image sensor chips by using a signal output from said noise reduction circuit; and a drive circuit adapted to effect control so that signals from the plurality of light-receiving elements included in said second image sensor chip are read out after signals of the plurality of light-receiving elements included in said first image sensor chip are read out, and said noise reduction circuit reduces noise contained in the output of the second image sensor chip in a read-out period of the image signals of the plurality of light-receiving elements included in the first image sensor chip.