Patents by Inventor Leo Anzagira

Leo Anzagira 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: 11764249
    Abstract: Some embodiments provide an image sensor pixel comprising a junction field effect transistor (JFET) and a floating diffusion configured to act as the gate of the JFET. An image sensor may comprise a plurality of pixels, at least one pixel comprising floating diffusion region formed in a semiconductor substrate, a transfer gate configured to selectively cause transfer of photocharge stored in the pixel to the floating diffusion, and a JFET having (i) a source and a drain coupled by a channel region, and (ii) a gate comprising the floating diffusion region.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: September 19, 2023
    Assignee: TRUSTEES OF DARTMOUTH COLLEGE
    Inventors: Jiaju Ma, Leo Anzagira, Eric R. Fossum
  • Patent number: 10840291
    Abstract: Some embodiments provide a color image sensor and color image sampling method that uses multiple-layer pixels and is capable of producing color images without using absorption color filters (e.g., such as employed in conventional CFAs). In accordance with some embodiments of the color image sensor device and color image sampling method, frequency-dependent reflectors are incorporated between the photodetection layers of multiple-layer (e.g., two layer) pixels.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: November 17, 2020
    Assignee: Trustees of Dartmouth College
    Inventors: Leo Anzagira, Eric R. Fossum
  • Patent number: 10652497
    Abstract: Some embodiments provide an image sensor that includes (i) quanta image sensor having an array of jots and configured for spatial and temporal oversampling, and (ii) a polarization filter array monolithically integrated with the quanta image sensor, so as to provide for a polarization image sensor. The image sensor may also include a color filter array.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: May 12, 2020
    Assignee: Trustees of Dartmouth College
    Inventors: Eric R. Fossum, Leo Anzagira
  • Publication number: 20200105821
    Abstract: Some embodiments provide an image sensor pixel comprising a junction field effect transistor (JFET) and a floating diffusion configured to act as the gate of the JFET. An image sensor may comprise a plurality of pixels, at least one pixel comprising floating diffusion region formed in a semiconductor substrate, a transfer gate configured to selectively cause transfer of photocharge stored in the pixel to the floating diffusion, and a JFET having (i) a source and a drain coupled by a channel region, and (ii) a gate comprising the floating diffusion region.
    Type: Application
    Filed: July 2, 2019
    Publication date: April 2, 2020
    Applicant: TRUSTEES OF DARTMOUTH COLLEGE
    Inventors: Jiaju Ma, Leo Anzagira, Eric R. Fossum
  • Publication number: 20190371852
    Abstract: Some embodiments provide a color image sensor and color image sampling method that uses multiple-layer pixels and is capable of producing color images without using absorption color filters (e.g., such as employed in conventional CFAs). In accordance with some embodiments of the color image sensor device and color image sampling method, frequency-dependent reflectors are incorporated between the photodetection layers of multiple-layer (e.g., two layer) pixels.
    Type: Application
    Filed: December 25, 2018
    Publication date: December 5, 2019
    Applicant: DARTMOUTH COLLEGE
    Inventors: Leo Anzagira, Eric R. Fossum
  • Patent number: 10349015
    Abstract: Some embodiments provide an image sensor color filter array pattern that mitigates and/or minimizes the impact of optical and carrier crosstalk on color reproduction accuracy and/or signal-to-noise, the color filter array comprising a plurality of kernels, wherein each kernel has an identical configuration of color filter elements comprising primary color filter elements corresponding to at least three respective different primary colors, and a plurality of secondary color filter elements. A respective one of the secondary color filter elements is disposed as a nearest neighbor to and between every pair of primary color filter elements of different colors in the kernel, with the respective secondary color filter element representing a secondary color that is a combination of the different colors of the primary color filter elements that are nearest neighbors to the respective secondary color filter element.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: July 9, 2019
    Assignee: TRUSTEES OF DARTMOUTH COLLEGE
    Inventors: Eric R. Fossum, Leo Anzagira
  • Patent number: 10340305
    Abstract: Some embodiments provide an image sensor pixel comprising a junction field effect transistor (JFET) and a floating diffusion configured to act as the gate of the JFET. An image sensor may comprise a plurality of pixels, at least one pixel comprising a floating diffusion region formed in a semiconductor substrate, a transfer gate configured to selectively cause transfer of photocharge stored in the pixel to the floating diffusion, and a JFET having (i) a source and a drain coupled by a channel region, and (ii) a gate comprising the floating diffusion region.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: July 2, 2019
    Assignee: DARTMOUTH COLLEGE
    Inventors: Jiaju Ma, Leo Anzagira, Eric R. Fossum
  • Patent number: 10163968
    Abstract: Some embodiments provide a color image sensor and color image sampling method that uses multiple-layer pixels and is capable of producing color images without using absorption color filters (e.g., such as employed in conventional CFAs). In accordance with some embodiments of the color image sensor device and color image sampling method, frequency-dependent reflectors are incorporated between the photodetection layers of multiple-layer (e.g., two layer) pixels.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: December 25, 2018
    Assignee: DARTMOUTH COLLEGE
    Inventors: Leo Anzagira, Eric R. Fossum
  • Publication number: 20180309949
    Abstract: Some embodiments provide an image sensor that includes (i) quanta image sensor having an array of jots and configured for spatial and temporal oversampling, and (ii) a polarization filter array monolithically integrated with the quanta image sensor, so as to provide for a polarization image sensor. The image sensor may also include a color filter array.
    Type: Application
    Filed: April 23, 2018
    Publication date: October 25, 2018
    Applicant: DARTMOUTH COLLEGE
    Inventors: Eric R. Fossum, Leo Anzagira
  • Publication number: 20180227550
    Abstract: Some embodiments provide an image sensor color filter array pattern that mitigates and/or minimizes the impact of optical and carrier crosstalk on color reproduction accuracy and/or signal-to-noise, the color filter array comprising a plurality of kernels, wherein each kernel has an identical configuration of color filter elements comprising primary color filter elements corresponding to at least three respective different primary colors, and a plurality of secondary color filter elements. A respective one of the secondary color filter elements is disposed as a nearest neighbor to and between every pair of primary color filter elements of different colors in the kernel, with the respective secondary color filter element representing a secondary color that is a combination of the different colors of the primary color filter dements that are nearest neighbors to the respective secondary color filter element.
    Type: Application
    Filed: December 1, 2015
    Publication date: August 9, 2018
    Applicant: DARTMOUTH COLLEGE
    Inventors: Eric R. Fossum, Leo Anzagira
  • Publication number: 20180090537
    Abstract: Some embodiments provide an image sensor pixel comprising a junction field effect transistor (JFET) and a floating diffusion configured to act as the gate of the JFET. An image sensor may comprise a plurality of pixels, at least one pixel comprising a floating diffusion region formed in a semiconductor substrate, a transfer gate configured to selectively cause transfer of photocharge stored in the pixel to the floating diffusion, and a JFET having (i) a source and a drain coupled by a channel region, and (ii) a gate comprising the floating diffusion region.
    Type: Application
    Filed: March 31, 2016
    Publication date: March 29, 2018
    Applicant: DARTMOUTH COLLEGE
    Inventors: Jiaju Ma, Leo Anzagira, Eric R. Fossum
  • Publication number: 20180006079
    Abstract: Some embodiments provide a color image sensor and color image sampling method that uses multiple-layer pixels and is capable of producing color images without using absorption color filters (e.g., such as employed in conventional CFAs). In accordance with some embodiments of the color image sensor device and color image sampling method, frequency-dependent reflectors are incorporated between the photodetection layers of multiple-layer (e.g., two layer) pixels.
    Type: Application
    Filed: January 25, 2016
    Publication date: January 4, 2018
    Applicant: DARTMOUTH COLLEGE
    Inventors: Leo Anzagira, Eric R. Fossum