1
Eric R Fossum, Sunetra Mendis, Sabrina E Kemeny: Active pixel sensor with intra-pixel charge transfer. California Institute of Technology, Michael L Keller, Robert M Wallace, November 28, 1995: US05471515 (701 worldwide citation)

An imaging device formed as a monolithic complementary metal oxide semiconductor integrated circuit in an industry standard complementary metal oxide semiconductor process, the integrated circuit including a focal plane array of pixel cells, each one of the cells including a photogate overlying the ...


2
Eric R Fossum, Robert Nixon: CMOS active pixel sensor type imaging system on a chip. California Institute of Technology, Fish & Richardson P C, November 24, 1998: US05841126 (439 worldwide citation)

Single substrate device is formed to have an image acquistition device and a controller. The controller on the substrate controls the system operation.


3
Joseph S Stam, Jon H Bechtel, Eric R Fossum, Sabrina E Kemeny: Wide dynamic range optical sensor. Gentex Corporation, Brooks & Kushman P C, December 28, 1999: US06008486 (271 worldwide citation)

A system and method is described for increasing effective integration time of an optical sensor including holding a first signal within each pixel cell, proportional to light integrated by the pixel cell over the previous frame period, generating a second signal within each pixel cell proportional t ...


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Eric R Fossum, Sabrina E Kemeny, Bedabrata Pain: Active pixel sensor array with multiresolution readout. California Institute of Technology, Fish & Richardson P C, September 7, 1999: US05949483 (196 worldwide citation)

An imaging device formed as a monolithic complementary metal oxide semiconductor integrated circuit in an industry standard complementary metal oxide semiconductor process, the integrated circuit including a focal plane array of pixel cells, each one of the cells including a photogate overlying the ...


6
Bedabrata Pain, Junichi Nakamura, Eric R Fossum: On-focal-plane analog-to-digital conversion for current-mode imaging devices. California Institute of Technology, Fish & Richardson P C, March 23, 1999: US05886659 (184 worldwide citation)

A current-mode analog-to-digital converter based on a current copier circuit with a constant bias current that is independent of the input signals. A second-order incremental .SIGMA.-.DELTA. conversion configuration is implemented. An array of such analog-to-digital converters can be integrated onto ...


7
Jon H Bechtel, Frederick T Bauer, Joseph S Stam, Robert C Knapp, Robert R Turnbull, David J Schmidt, G Bruce Poe, David L Plangger, Robert H Nixon, Eric R Fossum, Timothy E Steenwyk: Vehicle equipment control with semiconductor light sensors. Gentex Corporation, Price Heneveld Cooper DeWitt & Litton, June 1, 2004: US06742904 (183 worldwide citation)

Equipment on automotive vehicle is controlled by a system including at least one semiconductor light sensor having variable sensitivity to light. Each light sensor generates a light signal indicative of the intensity of light incident on the light sensor. Control logic varies the sensitivity of the ...


8
Robert H Nixon, Eric R Fossum, Jon H Bechtel: Light sensor. Gentex Corporation, Brian J Rees, James E Shultz Jr, Price Heneveld Cooper DeWitt & Litton, May 18, 2004: US06737629 (180 worldwide citation)

Light sensors having a wide dynamic range are used in a variety of applications. A wide dynamic range light sensor includes an exposed photodiode light transducer accumulating charge in proportion to light incident over an integration period. Sensor logic determines a light integration period prior ...


9
Jon H Bechtel, Joseph S Stam, Eric R Fossum, Sabrina E Kemeny: Vehicle vision system. Gentex Corporation, Price Heneveld Cooper DeWitt & Litton, July 28, 2009: US07567291 (176 worldwide citation)

A vehicle viewing system including a camera system for generating a signal corresponding to a scene by integrating light from the scene incident on pixel cells having a variable integration time, a display system for presenting a visual representation of the scene, and a processor system operable to ...


10
Eric R Fossum, Zhimin Zhou, Bedabrata Pain: Capacitively coupled successive approximation ultra low power analog-to-digital converter. California Institute of Technology, Fish & Richardson P C, March 9, 1999: US05880691 (163 worldwide citation)

A capacitively-coupled successive approximation analog-to-digital converter utilizes a capacitively coupled multiplying digital to analog converter to generate a succession of voltages which are compared to the input voltage to be digitized. The capacitively coupled multiplying digital to analog con ...