Eric Fossum's Digital Grain Paper

Eric Fossum published digital grain idea he presented on 2005 IEEE Workshop on CCDs and Advanced Image Sensors in Karuizawa, Japan and also at the Shizuoka University symposium on Nanoelectronics in Nov 2005 (link).
The patent on the digital grain idea belongs to Siimpel (based on Eric's info in DPReview forum).
Eric writes: The paper proposes using binary pixels (e.g. geiger-mode photodiodes) that I call jots and that are very very small. The jots are readout and OR'd together to create a grain, and the grains are then digitally developed by software to create pixels and an image. Grain size can be dynamically varied, both inter-frame and intra-frame.