Readout architecture for event-driven pixels

摘要

Methods and systems for reading out a pixel array are provided. An example system may include a plurality of pixels. The system may further include an interface circuit configured to provide an analog signal at a sense node. The analog signal may represent the activity of at least two pixels. The interface circuit may include a plurality of capacitors of which at least one capacitor is connected at one end to an output stage of a pixel and at another end to the sense node. The system may further include a readout circuit configured to convert the analog signal at the sense node to a digital signal.