Patents by Inventor Bedabrata Pain

Bedabrata Pain has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10375302
    Abstract: Imager arrays, array camera modules, and array cameras in accordance with embodiments of the invention utilize pixel apertures to control the amount of aliasing present in captured images of a scene. One embodiment includes a plurality of focal planes, control circuitry configured to control the capture of image information by the pixels within the focal planes, and sampling circuitry configured to convert pixel outputs into digital pixel data. In addition, the pixels in the plurality of focal planes include a pixel stack including a microlens and an active area, where light incident on the surface of the microlens is focused onto the active area by the microlens and the active area samples the incident light to capture image information, and the pixel stack defines a pixel area and includes a pixel aperture, where the size of the pixel apertures is smaller than the pixel area.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: August 6, 2019
    Assignee: FotoNation Limited
    Inventors: Shree Nayar, Kartik Venkataraman, Bedabrata Pain, Dan Lelescu
  • Publication number: 20180097993
    Abstract: Imager arrays, array camera modules, and array cameras in accordance with embodiments of the invention utilize pixel apertures to control the amount of aliasing present in captured images of a scene. One embodiment includes a plurality of focal planes, control circuitry configured to control the capture of image information by the pixels within the focal planes, and sampling circuitry configured to convert pixel outputs into digital pixel data. In addition, the pixels in the plurality of focal planes include a pixel stack including a microlens and an active area, where light incident on the surface of the microlens is focused onto the active area by the microlens and the active area samples the incident light to capture image information, and the pixel stack defines a pixel area and includes a pixel aperture, where the size of the pixel apertures is smaller than the pixel area.
    Type: Application
    Filed: October 16, 2017
    Publication date: April 5, 2018
    Applicant: FotoNation Cayman Limited
    Inventors: Shree Nayar, Kartik Venkataraman, Bedabrata Pain, Dan Lelescu
  • Patent number: 9794476
    Abstract: Imager arrays, array camera modules, and array cameras in accordance with embodiments of the invention utilize pixel apertures to control the amount of aliasing present in captured images of a scene. One embodiment includes a plurality of focal planes, control circuitry configured to control the capture of image information by the pixels within the focal planes, and sampling circuitry configured to convert pixel outputs into digital pixel data. In addition, the pixels in the plurality of focal planes include a pixel stack including a microlens and an active area, where light incident on the surface of the microlens is focused onto the active area by the microlens and the active area samples the incident light to capture image information, and the pixel stack defines a pixel area and includes a pixel aperture, where the size of the pixel apertures is smaller than the pixel area.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: October 17, 2017
    Assignee: FotoNation Cayman Limited
    Inventors: Shree Nayar, Kartik Venkataraman, Bedabrata Pain, Dan Lelescu
  • Patent number: 9743051
    Abstract: Systems and methods in accordance with embodiments of the invention implement modular array cameras using sub-array modules. In one embodiment, an X×Y sub-array module includes: an X×Y arrangement of focal planes, where X and Y are each greater than or equal to 1; and an X×Y arrangement of lens stacks, the X×Y arrangement of lens stacks being disposed relative to the X×Y arrangement of focal planes so as to form an X×Y arrangement of cameras, where each lens stack has a field of view that is shifted with respect to the field-of-views of each other lens stack so that each shift includes a sub-pixel shifted view of the scene; and image data output circuitry that is configured to output image data from the X×Y sub-array module that can be aggregated with image data from other sub-array modules so that an image of the scene can be constructed.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 22, 2017
    Assignee: FotoNation Cayman Limited
    Inventors: Kartik Venkataraman, Paul Gallagher, Dan Lelescu, Andrew Kenneth John McMahon, Jacques Duparre, Bedabrata Pain
  • Publication number: 20170048468
    Abstract: Architectures for imager arrays configured for use in array cameras in accordance with embodiments of the invention are described. One embodiment of the invention includes a plurality of focal planes, where each focal plane comprises a two dimensional arrangement of pixels having at least two pixels in each dimension and each focal plane is contained within a region of the imager array that does not contain pixels from another focal plane, control circuitry configured to control the capture of image information by the pixels within the focal planes, where the control circuitry is configured so that the capture of image information by the pixels in at least two of the focal planes is separately controllable, and sampling circuitry configured to convert pixel outputs into digital pixel data.
    Type: Application
    Filed: May 19, 2016
    Publication date: February 16, 2017
    Inventors: Bedabrata Pain, Andrew Kenneth John McMahon
  • Publication number: 20160316140
    Abstract: Imager arrays, array camera modules, and array cameras in accordance with embodiments of the invention utilize pixel apertures to control the amount of aliasing present in captured images of a scene. One embodiment includes a plurality of focal planes, control circuitry configured to control the capture of image information by the pixels within the focal planes, and sampling circuitry configured to convert pixel outputs into digital pixel data. In addition, the pixels in the plurality of focal planes include a pixel stack including a microlens and an active area, where light incident on the surface of the microlens is focused onto the active area by the microlens and the active area samples the incident light to capture image information, and the pixel stack defines a pixel area and includes a pixel aperture, where the size of the pixel apertures is smaller than the pixel area.
    Type: Application
    Filed: February 19, 2016
    Publication date: October 27, 2016
    Inventors: Shree Nayar, Kartik Venkataraman, Bedabrata Pain, Dan Lelescu
  • Patent number: 9466634
    Abstract: Pixels, imagers and related fabrication methods are described. The described methods result in cross-talk reduction in imagers and related devices by generating depletion regions. The devices can also be used with electronic circuits for imaging applications.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: October 11, 2016
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Bedabrata Pain, Thomas J. Cunningham
  • Publication number: 20160269651
    Abstract: Systems and methods in accordance with embodiments of the invention implement modular array cameras using sub-array modules. In one embodiment, an X×Y sub-array module includes: an X×Y arrangement of focal planes, where X and Y are each greater than or equal to 1; and an X×Y arrangement of lens stacks, the X×Y arrangement of lens stacks being disposed relative to the X×Y arrangement of focal planes so as to form an X×Y arrangement of cameras, where each lens stack has a field of view that is shifted with respect to the field-of-views of each other lens stack so that each shift includes a sub-pixel shifted view of the scene; and image data output circuitry that is configured to output image data from the X×Y sub-array module that can be aggregated with image data from other sub-array modules so that an image of the scene can be constructed.
    Type: Application
    Filed: February 1, 2016
    Publication date: September 15, 2016
    Applicant: Pelican Imaging Corporation
    Inventors: Kartik Venkataraman, Paul Gallagher, Dan Lelescu, Andrew Kenneth John McMahon, Jacques Duparre, Bedabrata Pain
  • Patent number: 9253380
    Abstract: Systems and methods in accordance with embodiments of the invention implement modular array cameras using sub-array modules. In one embodiment, an X×Y sub-array module includes: an X×Y arrangement of focal planes, where X and Y are each greater than or equal to 1; and an X×Y arrangement of lens stacks, the X×Y arrangement of lens stacks being disposed relative to the X×Y arrangement of focal planes so as to form an X×Y arrangement of cameras, where each lens stack has a field of view that is shifted with respect to the field-of-views of each other lens stack so that each shift includes a sub-pixel shifted view of the scene; and image data output circuitry that is configured to output image data from the X×Y sub-array module that can be aggregated with image data from other sub-array modules so that an image of the scene can be constructed.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: February 2, 2016
    Assignee: Pelican Imaging Corporation
    Inventors: Kartik CA Venkataraman, Paul Gallagher, Dan Lelescu, Andrew Kenneth John McMahon, Jacques Duparre, Bedabrata Pain
  • Patent number: 9105548
    Abstract: A method and device for imaging or detecting electromagnetic radiation is provided. A device structure includes a first chip interconnected with a second chip. The first chip includes a detector array, wherein the detector array comprises a plurality of light sensors and one or more transistors. The second chip includes a Read Out Integrated Circuit (ROIC) that reads out, via the transistors, a signal produced by the light sensors. A number of interconnects between the ROIC and the detector array can be less than one per light sensor or pixel.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: August 11, 2015
    Assignee: California Institute of Technology
    Inventors: Thomas J. Cunningham, Bruce R. Hancock, Chao Sun, Todd J. Jones, Matthew R. Dickie, Shouleh Nikzad, Michael E. Hoenk, Christopher J. Wrigley, Kenneth W. Newton, Bedabrata Pain
  • Publication number: 20140240529
    Abstract: Systems and methods in accordance with embodiments of the invention implement modular array cameras using sub-array modules. In one embodiment, an X×Y sub-array module includes: an X×Y arrangement of focal planes, where X and Y are each greater than or equal to 1; and an X×Y arrangement of lens stacks, the X×Y arrangement of lens stacks being disposed relative to the X×Y arrangement of focal planes so as to form an X×Y arrangement of cameras, where each lens stack has a field of view that is shifted with respect to the field-of-views of each other lens stack so that each shift includes a sub-pixel shifted view of the scene; and image data output circuitry that is configured to output image data from the X×Y sub-array module that can be aggregated with image data from other sub-array modules so that an image of the scene can be constructed.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Applicant: Pelican Imaging Corporation
    Inventors: Kartik Venkataraman, Paul Gallagher, Dan Lelescu, Andrew McMahon, Jacques Duparre, Bedabrata Pain
  • Publication number: 20140098266
    Abstract: Imager arrays, array camera modules, and array cameras in accordance with embodiments of the invention utilize pixel apertures to control the amount of aliasing present in captured images of a scene. One embodiment includes a plurality of focal planes, control circuitry configured to control the capture of image information by the pixels within the focal planes, and sampling circuitry configured to convert pixel outputs into digital pixel data. In addition, the pixels in the plurality of focal planes include a pixel stack including a microlens and an active area, where light incident on the surface of the microlens is focused onto the active area by the microlens and the active area samples the incident light to capture image information, and the pixel stack defines a pixel area and includes a pixel aperture, where the size of the pixel apertures is smaller than the pixel area.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    Applicant: Pelican Imaging Corporation
    Inventors: Shree Nayar, Kartik Venkataraman, Bedabrata Pain, Dan Lelescu
  • Publication number: 20140048689
    Abstract: Pixels, imagers and related fabrication methods are described. The described methods result in cross-talk reduction in imagers and related devices by generating depletion regions. The devices can also be used with electronic circuits for imaging applications.
    Type: Application
    Filed: August 19, 2013
    Publication date: February 20, 2014
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Bedabrata PAIN, Thomas J. CUNNINGHAM
  • Patent number: 8648288
    Abstract: Pixels, imagers and related fabrication methods are described. The described methods result in cross-talk reduction in imagers and related devices by generating depletion regions. The devices can also be used with electronic circuits for imaging applications.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: February 11, 2014
    Assignee: California Institute of Technology
    Inventors: Bedabrata Pain, Thomas J Cunningham
  • Publication number: 20130175430
    Abstract: A method and device for imaging or detecting electromagnetic radiation is provided. A device structure includes a first chip interconnected with a second chip. The first chip includes a detector array, wherein the detector array comprises a plurality of light sensors and one or more transistors. The second chip includes a Read Out Integrated Circuit (ROIC) that reads out, via the transistors, a signal produced by the light sensors. A number of interconnects between the ROIC and the detector array can be less than one per light sensor or pixel.
    Type: Application
    Filed: June 22, 2012
    Publication date: July 11, 2013
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Thomas J. Cunningham, Bruce R. Hancock, Chao Sun, Todd J. Jones, Matthew R. Dickie, Shouleh Nikzad, Michael E. Hoenk, Christopher J. Wrigley, Kenneth W. Newton, Bedabrata Pain
  • Patent number: 8174014
    Abstract: An apparatus and associated method are provided. A first silicon layer having at least one of an associated passivation layer and barrier is included. Also included is a composite anti-reflection layer including a stack of layers each with a different thickness and refractive index. Such composite anti-reflection layer is disposed adjacent to the first silicon layer.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: May 8, 2012
    Assignee: California Institute of Technology
    Inventor: Bedabrata Pain
  • Patent number: 8164663
    Abstract: For a source-follower signal chain, the ohmic drop in the selection switch causes unacceptable voltage offset, non-linearity, and reduced small signal gain. For an op amp signal chain, the required bias current and the output noise rises rapidly with increasing the array format due to a rapid increase in the effective capacitance caused by the Miller effect boosting up the contribution of the bus capacitance. A new switched source-follower signal chain circuit overcomes limitations of existing op-amp based or source follower based circuits used in column multiplexers and data readout. This will improve performance of CMOS imagers, and focal plane read-out integrated circuits for detectors of infrared or ultraviolet light.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: April 24, 2012
    Assignee: California Institute of Technology
    Inventors: Bedabrata Pain, Bruce Hancock, Thomas J. Cunningham
  • Patent number: 8089070
    Abstract: An imager apparatus and associated starting material are provided. In one embodiment, an imager is provided including a silicon layer of a first conductivity type acting as a junction anode. Such silicon layer is adapted to convert light to photoelectrons. Also included is a semiconductor well of a second conductivity type formed in the silicon layer for acting as a junction cathode. Still yet, a barrier is formed adjacent to the semiconductor well. In another embodiment, a starting material is provided including a first silicon layer and an oxide layer disposed adjacent to the first silicon layer. Also included is a second silicon layer disposed adjacent to the oxide layer opposite the first silicon layer. Such second silicon layer is further equipped with an associated passivation layer and/or barrier.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: January 3, 2012
    Assignee: California Institute of Technology
    Inventor: Bedabrata Pain
  • Patent number: 8085342
    Abstract: A miniaturized camera which is programmable and provides low power consumption. An active pixel image sensor used in the highly miniaturized camera provides improved imaging functionality as well as reduced power consumption, extending the possible life time of the camera system. The spread spectrum nature of transmission and reception improves data integrity as well as data security. The ability of the highly miniaturized wireless camera to receive commands as well as transmit image data provides improved functionality and a variable rate of power consumption to be set according to the application and needs of the situation.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: December 27, 2011
    Assignee: California Institute of Technology
    Inventors: Martin J. Agan, Eric R. Fossum, Bob H. Nixon, Brita H. Olson, Bedabrata Pain, Chris Pasqualino, Ed H. Satorius, Tim J. Shaw, Gary L. Stevens
  • Publication number: 20110226936
    Abstract: Pixels, imagers and related fabrication methods are described. The described methods result in cross-talk reduction in imagers and related devices by generating depletion regions. The devices can also be used with electronic circuits for imaging applications.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 22, 2011
    Inventors: Bedabrata PAIN, Thomas J. Cunningham