Abstract: According to one embodiment, an image sensor module including a plurality of image sensors and a common signal line. The common signal line is commonly electrically connected to the plurality of image sensors. To the common signal line, image signals are output sequentially from the plurality of image sensors. The image sensor module feeds back a feedback signal from a first image sensor to a predetermined image sensor. The first image sensor is an image sensor which lastly outputs the image signal among the plurality of image sensors. The predetermined image sensor is an image sensor which outputs an offset signal to the common signal among the plurality of image sensors. The feedback signal indicates a completion of an output of image signal to the common signal line. The predetermined image sensor outputs the offset signal to the common signal line in response to the feedback signal.

Abstract: According to one embodiment, an image reading device is disclosed. The reference memory stores reference signals of tone levels “0” to “n” which are output from the sensor by light of tone levels “0” to “n” reflected by the shading plate. The afterimage memory stores afterimage signals of tone levels “1” to “n” which are output from the sensor after the sensor outputs the reference signals. The image signal memory store image signals of first and second lines. The afterimage correction memory store the afterimage signals of tone levels “n?1” and “n” when the image signal of the first line is not smaller than the reference signal of tone level “n?1”, and smaller than the reference signal of tone level “n”. The signal processor performs afterimage correction on the image signal of the second line by calculation using at least the afterimage signals of tone levels “n?1” and “n”.

Abstract: According to one embodiment, an image sensor module including a plurality of image sensors and a common signal line. The common signal line is commonly electrically connected to the plurality of image sensors. To the common signal line, image signals are output sequentially from the plurality of image sensors. The image sensor module feeds back a feedback signal from a first image sensor to a predetermined image sensor. The first image sensor is an image sensor which lastly outputs the image signal among the plurality of image sensors. The predetermined image sensor is an image sensor which outputs an offset signal to the common signal among the plurality of image sensors. The feedback signal indicates a completion of an output of image signal to the common signal line. The predetermined image sensor outputs the offset signal to the common signal line in response to the feedback signal.

Abstract: An image sensor includes a pulse input and output circuit that identifies a line synchronization pulse and an output start timing pulse sequentially input from an outside of a sensor chip, inputs the identified line synchronization pulse to an inside of the sensor chip and outputs the line synchronization pulse to an outside of the sensor chip, inputs the identified output start timing pulse to the inside of the sensor chip, and outputs an output start timing pulse, which is output from the input of the sensor chip after elapse of a fixed time from the input, to the outside of the sensor chip following the line synchronization pulse output to the outside.

Abstract: An image sensor module according to an example of the invention comprises photoelectric conversion devices, a first terminal to input a line synchronization signal and a resolution information signal, a second terminal to input a clock signal, a first unit which detects the resolution information signal from a signal input from the first terminal based on the clock signal, and a second unit which generates a resolution control signal for setting a resolution indicated by the resolution information signal detected by the first unit and outputs the resolution control signal to the photoelectric conversion devices.