1
Lester J Kozlowski, David L Standley: Low-noise active pixel sensor for imaging arrays with global reset. Pictos Technologies, Christopher J Rourk, Akin Gump Strauss Hauer & Feld, December 10, 2002: US06493030 (58 worldwide citation)

An imaging array of active pixel sensors uses a reset amplifier in each pixel in a four transistor CMOS implementation. The reset amplifier acts as a variable resistance in the source-follower amplifier feedback circuit. The variable resistance is controlled by a range reset voltage applied to the r ...


2
Lester J Kozlowski, David L Standley: Low-noise active-pixel sensor for imaging arrays with high speed row reset. Pictos Technologies, Christopher J Rourk, Akin Gump Strauss Hauer & Feld, March 11, 2003: US06532040 (40 worldwide citation)

An imager pixel including a photodetector, a first MOS transistor functioning as the driver of a source follower amplifier during signal readout, a second MOS transistor serving as a pixel readout transistor, a third MOS transistor serving as a photodetector reset transistor, and a reset noise cance ...


3
Lester J Kozlowski, David L Standley: Low-noise active-pixel sensor for imaging arrays with high speed row reset. Pictos Technologies, Christopher J Rourk, Akin Gump Strauss Hauer & Feld, July 1, 2003: US06587142 (37 worldwide citation)

An active pixel sensor circuit including a photodetector, a first MOS transistor functioning as the driver of a source follower amplifier during signal readout, a second MOS transistor serving as a pixel readout transistor, a third MOS transistor serving as a photodetector reset transistor, and a re ...


4
Lester J Kozlowski, David L Standley: Compact low-noise active pixel sensor with progressive row reset. ESS Technology, Farjami & Farjami, February 24, 2004: US06697111 (34 worldwide citation)

An imaging array of active pixel sensors uses a compact three transistor CMOS implementation for each pixel. A current source at the top of each column creates a distributed feedback amplifier for each pixel in a selected row. The reset amplifier acts as a variable resistance in the source-follower ...


5
David L Standley: Compact photosensor circuit having automatic intensity range control. Rockwell International Corporation, John C McFarren, November 5, 1996: US05572074 (28 worldwide citation)

A compact photosensor circuit provides automatic intensity range control for machine vision systems. The circuit may be implemented with standard CMOS integrated circuit technology to provide high sensitivity, fully static operation, and automatic exposure control with no moving parts. For each pixe ...


6
Lester J Kozlowski, David L Standley: Active pixel sensor with capacitorless correlated double sampling. Pictos Technologies, Christopher J Rourk, Akin Gump Strauss Hauer & Feld, March 18, 2003: US06535247 (27 worldwide citation)

An imager pixel including a photodetector, a first MOS transistor functioning as the driver of a source follower amplifier, a second MOS transistor functioning as a pixel readout transistor, and a third transistor performing a dual function to reset the photodetector during a first time interval and ...


7
David L Standley: Current ratio circuit for multi-color imaging. Rockwell International Corporation, John C McFarren, March 26, 1996: US05502299 (20 worldwide citation)

An electronic circuit extracts a ratio of currents from two sources and provides an output that is a function of the current ratio. An embodiment of the circuit includes a source current that may be provided by a blue-green photodetector and a sinking current that may be provided by a red photodetec ...


8
Lester J Kozlowski, David L Standley: Low-noise CMOS active pixel sensor for imaging arrays with high speed global or row reset. October 26, 2004: US06809767 (14 worldwide citation)

An active-pixel low-noise imaging system for implementation in CMOS or in other semiconductor fabrication technologies uses three transistors and a single capacitance per pixel. The first transistor serves as a reset and a transimpedance amplifier to facilitate high impedance and suppress reset nois ...


9
Berthold K P Horn, David L Standley: Analog VLSI microchip for object position and orientation. Massachusetts Institute of Technology, Choate Hall & Stewart, June 15, 1993: US05220398 (13 worldwide citation)

An analog VLSI microchip which uses moments to determine the position and orientation of an object in a scene is disclosed. The imaging sensors are implemented on the chip itself using standard fabrication processes. The method allows very high speed computation in a small, low cost, and low power d ...


10
Bimal P Mathur, David L Standley, Craig C Reinhart, Shih Chii Liu, H Taichi Wang: Vehicular traffic monitoring system. Rockwell International Corporation, John C McFarren, April 4, 1995: US05404306 (11 worldwide citation)

A vehicular traffic monitoring system incorporates an array of photosensors and a nonlinear resistive network for identifying, locating, and processing outliers in sensor images of a highway or intersection. The camera system can be mounted on a pole or overpass to provide an image of the roadway or ...