Patent ID: 6765703
Filing Date: 2004-07-20
Classification: H04N

Abstract:
An image reading apparatus comprising:a line sensor unit including a monochromatic sensor for outputting a one-line signal by dividing the signal into a plurality of signals, and a plurality of color sensors; a mode setting circuit for setting one of a monochromatic mode and a color mode; a monochromatic analog-to-digital converter which corresponds to said monochromatic sensor and receives signals and performs analog-to-digital conversion for the received signals; a plurality of color analog-to-digital converters which correspond to said plurality of color sensors and receive signals and perform analog-to-digital conversion for the received signals; and a selector for distributing, when the monochromatic mode is set in said mode setting circuit, the plurality of output signals from said monochromatic sensor to said monochromatic analog-to-digital converter and said color analog-to-digital converters to cause said monochromatic and color analog-to-digital converters to perform analog-to-digital conversion for the signals.