Single chip stereo imager. - Ralf M. Philipp; Ralph Etienne-Cummings (ISCAS (4), 2003)

Low power current rectifiers for large scale current-mode signal processing. - Ralf M. Philipp; Ralph Etienne-Cummings (ISCAS (1), 2004)

A 1V current-mode CMOS active pixel sensor. - Ralf M. Philipp; Ralph Etienne-Cummings (ISCAS (5), 2005)

Neuromorphic Vision Systems for Mobile Applications. - Ralph Etienne-Cummings; Swati Mehta; Ralf M. Philipp; Viktor Gruev (CICC, 2006)

Image sensor with general spatial processing in a 3D integrated circuit technology. - Viktor Gruev; Jan Van der Spiegel; Ralf M. Philipp; Ralph Etienne-Cummings (ISCAS, 2006)

A second-generation single-chip stereo imager. - Ralf M. Philipp; Ralph Etienne-Cummings (ISCAS, 2006)

A 128 x128 33mW 30frames/s single-chip stereo imager. - Ralf M. Philipp; Ralph Etienne-Cummings (ISSCC, 2006)

Linear Current-Mode Active Pixel Sensor. - Ralf M. Philipp; David Orr; Viktor Gruev; Jan Van der Spiegel; Ralph Etienne-Cummings (IEEE J. Solid State Circuits, 2007)