Patent ID: 8693063
Filing Date: 2014-04-08
Classification: H04N

Abstract:
1. An image-reading device comprising: a plurality of image sensors, each image sensor reading an image on a pixel basis and generating an image signal indicative of the image, each image signal having a sampling portion to be sampled during a sampling period, the image signal being an analog signal; a signal outputting unit configured to output a common trigger signal to each of the plurality of image sensors via a common signal line and output a master clock signal at every predetermined cycle period; and a signal timing regulator configured to input the master clock signal and output a plurality of regulated clock signals which are shifted from each other within the predetermined cycle period of the master clock signal, wherein each of the plurality of regulated clock signals is output to a corresponding one of the plurality of image sensors, wherein each of the plurality of image sensors is configured to output the image signal upon receiving the common trigger signal and the corresponding one of the plurality of regulated clock signals, such that the sampling periods for the plurality of image sensors shift from one another within the predetermined cycle period of the master clock signal.