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).
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Patent number: 11764249Abstract: 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: GrantFiled: July 2, 2019Date of Patent: September 19, 2023Assignee: TRUSTEES OF DARTMOUTH COLLEGEInventors: Jiaju Ma, Leo Anzagira, Eric R. Fossum
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Patent number: 10840291Abstract: 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: GrantFiled: December 25, 2018Date of Patent: November 17, 2020Assignee: Trustees of Dartmouth CollegeInventors: Leo Anzagira, Eric R. Fossum
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Patent number: 10652497Abstract: 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: GrantFiled: April 23, 2018Date of Patent: May 12, 2020Assignee: Trustees of Dartmouth CollegeInventors: Eric R. Fossum, Leo Anzagira
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Publication number: 20200105821Abstract: 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: ApplicationFiled: July 2, 2019Publication date: April 2, 2020Applicant: TRUSTEES OF DARTMOUTH COLLEGEInventors: Jiaju Ma, Leo Anzagira, Eric R. Fossum
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Publication number: 20190371852Abstract: 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: ApplicationFiled: December 25, 2018Publication date: December 5, 2019Applicant: DARTMOUTH COLLEGEInventors: Leo Anzagira, Eric R. Fossum
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Patent number: 10349015Abstract: 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: GrantFiled: December 1, 2015Date of Patent: July 9, 2019Assignee: TRUSTEES OF DARTMOUTH COLLEGEInventors: Eric R. Fossum, Leo Anzagira
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Patent number: 10340305Abstract: 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: GrantFiled: March 31, 2016Date of Patent: July 2, 2019Assignee: DARTMOUTH COLLEGEInventors: Jiaju Ma, Leo Anzagira, Eric R. Fossum
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Patent number: 10163968Abstract: 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: GrantFiled: January 25, 2016Date of Patent: December 25, 2018Assignee: DARTMOUTH COLLEGEInventors: Leo Anzagira, Eric R. Fossum
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Publication number: 20180309949Abstract: 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: ApplicationFiled: April 23, 2018Publication date: October 25, 2018Applicant: DARTMOUTH COLLEGEInventors: Eric R. Fossum, Leo Anzagira
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Publication number: 20180227550Abstract: 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: ApplicationFiled: December 1, 2015Publication date: August 9, 2018Applicant: DARTMOUTH COLLEGEInventors: Eric R. Fossum, Leo Anzagira
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Publication number: 20180090537Abstract: 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: ApplicationFiled: March 31, 2016Publication date: March 29, 2018Applicant: DARTMOUTH COLLEGEInventors: Jiaju Ma, Leo Anzagira, Eric R. Fossum
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Publication number: 20180006079Abstract: 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: ApplicationFiled: January 25, 2016Publication date: January 4, 2018Applicant: DARTMOUTH COLLEGEInventors: Leo Anzagira, Eric R. Fossum