1
Roger Panicacci, Barmak Mansoorian, Sandor Barna, Alexander I Krymski: Readout circuit with gain and analog-to-digital a conversion for image sensor. Micron Technology, Dickstein Shapiro Morin & Oshinsky, April 26, 2005: US06885396 (49 worldwide citation)

A CMOS imager includes an array of active pixel sensors, wherein each pixel is associated with a respective column in the array. The imager also includes multiple circuits for reading out values of pixels from the active sensor array. Each readout circuit can be associated with a respective pair of ...


2
Yibing Michelle Wang, Sandor Barna: Dual sensitivity image sensor. Micron Technology, Dickstein Shapiro Morin & Oshinsky, December 6, 2005: US06972794 (13 worldwide citation)

A system of taking images of different sensitivities at the same time uses both an image sensor, and an auxiliary part to the image sensor. The image sensor element can be a photogate, and the auxiliary part can be the floating diffusion associated with the photogate. Both the photogate and the floa ...


3
Roger Panicacci, Barmak Mansoorian, Sandor Barna, Alexander I Krymski: Readout circuit with gain and analog-to-digital conversion for image sensor. Micron Technology, Dickstein Shapiro, July 17, 2007: US07245321 (10 worldwide citation)

A CMOS imager includes an array of active pixel sensors, wherein each pixel is associated with a respective column in the array. The imager also includes multiple circuits for reading out values of pixels from the active sensor array. Each readout circuit can be associated with a respective pair of ...


4
Sandor Barna, Daniel Van Blerkam, Eric R Fossum: Nonlinear flash analog to digital converter used in an active pixel system. Photobit Corporation, Fish & Richardson P C, September 25, 2001: US06295013 (8 worldwide citation)

A non-uniform resistor is used with a flash A to D converter in order to provide an A to D output which is not linear. The nonlinearity of the A to D output is specially designed to carry out a predetermined correction of the signal.


5
Sandor Barna, Daniel Van Blerkom, Eric R Fossum: Nonlinear flash analog to digital converter used in an active pixel system. Micron Technology, Dickstein Shapiro Morin & Oshinsky, December 20, 2005: US06977603 (7 worldwide citation)

A non-uniform resistor is used with a flash A to D converter in order to provide an A to D output which is not linear. The nonlinearity of the A to D output is specially designed to carry out a predetermined correction of the signal.


6
Alexander Krymski, Sandor Barna, Barmak Mansoorian: Bidirectional follower for driving a capacitive load. Photobit Corporation, Fish & Richardson P C, March 28, 2000: US06043690 (5 worldwide citation)

A bidirectional source follower system includes an N channel transistor and P channel transistor which conduct in opposite ways. The n channel transistor is connected to quickly source current, however is relatively inefficient at sinking current. In contrast, the P channel transistor can sink curre ...


7
Yibing Michelle Wang, Sandor Barna: Dual sensitivity image sensor. Aptina Imaging Corporation, Dickstein Shapiro, October 20, 2009: US07605855 (3 worldwide citation)

A system of taking images of different sensitivities at the same time uses both an image sensor, and an auxiliary part to the image sensor. The image sensor element can be a photogate, and the auxiliary part can be the floating diffusion associated with the photogate. Both the photogate and the floa ...


8
Yibing, Sandor Barna: Dual sensitivity image sensor. Aptina Imaging Corporation, February 15, 2011: US07889258 (1 worldwide citation)

A system of taking images of different sensitivities at the same time uses both an image sensor, and an auxiliary part to the image sensor. The image sensor element can be a photogate, and the auxiliary part can be the floating diffusion associated with the photogate. Both the photogate and the floa ...


9
Sandor Barna: Imaging systems with flicker mitigation and high dynamic range. SEMICONDUCTOR COMPONENTS, Treyz Law Group P C, Joseph F Guihan, June 20, 2017: US09686488 (1 worldwide citation)

An image pixel may include a shutter element that is operable in an open state during which a corresponding photodiode accumulates charge and a closed state during which charge is drained from the photodiode. During a first portion of an image frame, the image pixel may operate in a flicker mitigati ...


10
Sandor Barna, Richard Scott Johnson: Imaging systems and methods for capturing image data at high scan rates. SEMICONDUCTOR COMPONENTS, Treyz Law Group P C, Michael H Lyons, December 27, 2016: US09531959

An imaging system may include a rolling shutter image sensor, data rate reduction circuitry, and image processing circuitry. The image sensor may output image data to the data rate reduction circuitry at a first high speed data rate. The data rate reduction circuitry may store the image data at the ...