Event detecting device including an event signal generator and an output signal generator

An event detecting device comprising:

• a pixel array including a plurality of pixels arranged in a plurality of rows and a plurality of columns;
• an event signal generator configured to generate a first event signal, by grouping pixel signals output by two or more adjacent pixels among the plurality of pixels into a group, wherein the first event signal includes a first data and a second data generated from the pixel signals and having mutually complementary attributes;
• and
• an output signal generator configured to generate an output signal comprising a combination of at least a first portion of the first event signal with at least a second portion of a second event signal when only one of the first data and the second data of the event signal includes event information.

An event detecting device comprising:

• a pixel array including a plurality of pixels;
• an event signal generator configured to classify the plurality of pixels into a plurality of groups, and to generate a plurality of event signals, based on position information of the plurality of pixels included in respective ones of the plurality of groups, and polarities of pixel signals output from the plurality of pixels included in the respective ones of the plurality of groups;
• and
• an output signal generator configured to generate an output signal by combining a first event signal corresponding to a first one of the plurality of groups with a second event signal corresponding to a second one of the plurality of groups when polarities of each of the pixel signals generated by the plurality of pixels of the first one of the plurality of groups are equal to each other, and to output the output signal.