Importance

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Abstract

An image sensor, including a substrate having formed thereon by a CMOS process a digital sensor array having a plurality of digital pixel sensors which output analog signals corresponding to a desired image. The digital sensor array further includes supporting circuitry for converting the analog signals produced by the digital pixel sensors to digital signals corresponding to the desired image. Filter circuitry, for converting the digital signals to digital values representative of the light intensity impinging upon the plurality of digital pixel sensors, is also formed on the substrate using CMOS fabrication processes. Memory devices, including a data memory, a threshold memory, and a time index memory are formed on the substrate using CMOS fabrication techniques. A clock circuit is also formed on the substrate using CMOS fabrication processes. Programmable logic structures are formed on the substrate using CMOS fabrication processes. The programmable logic structure can be configured into a variety of circuitry or routing so as to facilitate customization or specialization of the image sensor.

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First Claim