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Kathleen A Duncan, William S Jacobs, Robert G Taylor: Programmable image transform processor for digital image processing. Pictos Technologies, Farjami & Farjami, July 22, 2003: US06597394 (93 worldwide citation)

A programmable image transform processor has a programmable addressing and arithmetic blocks. In the programmable addressing block, an input address generator has an input addressing microsequencer and an input addressing memory that stores an input addressing procedure. The microsequencer executes ...


2
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 ...


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, 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 ...


4
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 ...


5
Magued M Bishay, Randy M Chung: Edge-dependent interpolation method for color reconstruction in image processing devices. Pictos Technologies, Christopher J Rourk, Akin Gump Strauss Hauer & Feld, January 14, 2003: US06507364 (33 worldwide citation)

An image processing device is provided for still and video imaging systems which use a low number of samples per image pixel, preferably a single color component per each image pixel. The device includes an edge-dependent and edge-side-dependent color interpolation process, preferably implemented wi ...


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William S Jacobs: Programmable timing generator. Pictos Technologies, Farjami & Farjami, June 17, 2003: US06580456 (31 worldwide citation)

A programmable timing generator for a digital imaging system has a first clock generator and a second clock generator. The first clock generator includes a programmable microsequencer and generates a plurality of first clock signals in response to the microsequencer. The second programmable clock ge ...


7
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 ...


8
Biay Cheng Hseih: Image sensor with enhanced blue response and signal cross-talk suppression. Pictos Technologies, Akin Gump Strauss Hauer & Feld, July 15, 2003: US06593607 (15 worldwide citation)

The invention is directed to an image sensor with enhanced blue response and limited cross-talk. The image sensor is made of a photodiode layer. Disposed on one side of the photodiode layer is a substrate layer made out of an oppositely charged semiconductor material. The substrate layer is further ...


9
Magued Bishay, Randall M Chung, James K Dawson, David Escobar, Mike Fukatsu, Edward Andrew Jakl, Richard Arthur Mann, Sarit Neter, Ian Olsen, Gregory A Urban: Light sensing system with high pixel fill factor. Pictos Technologies, Akin Gump Strauss Hauer & Feld, November 26, 2002: US06486522 (12 worldwide citation)

The invention is an imaging device having a high fill factor. The high fill factor is achieved by constructing the light sensors in a vertical fashion in the imaging device. The control circuitry of the light sensor is then contained inside the integrated circuit chip, rather than taking up area tha ...


10
Lester J Kozlowski, Richard A Mann: Method and apparatus for achieving uniform low dark current with CMOS photodiodes. Pictos Technologies, Christopher J Rourk, Akin Gump Strauss Hauer & Feld, December 24, 2002: US06498331 (8 worldwide citation)

An apparatus and method for achieving uniform low dark currents with CMOS photodiodes. A threshold voltage of a reset FET is set to an appropriate value such that the dark current from a photodiode is actively removed through the reset FET during signal integration. This reduces the dark current by ...