Patents by Inventor John L. Vampola
John L. Vampola 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: 11710756Abstract: A direct-bond hybridization (DBH) method is provided to assemble a sensor wafer device. The DBH method includes fabricating an optical element on a handle wafer and depositing first oxide with n-x thickness on the optical element where n is an expected final oxide thickness of the sensor wafer, depositing second oxide with x thickness onto a sensor wafer, executing layer transfer of the optical element by a DBH fusion bond technique to the sensor wafer whereby the first and second oxides form an oxide layer of n thickness between the optical element and the sensor wafer and removing the handle wafer.Type: GrantFiled: November 19, 2020Date of Patent: July 25, 2023Assignee: RAYTHEON COMPANYInventors: Jamal I. Mustafa, Robert C. Anderson, John L. Vampola, Sean P. Kilcoyne, Eric R. Miller, George Grama
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Patent number: 11557235Abstract: A device includes multiple row power lines and multiple row control lines arranged in rows, where each row control line corresponds to one of the row power lines. The device also includes multiple column power lines arranged in columns. The device further includes multiple unit cells, where each unit cell is coupled to one of the row power lines and one of the row control lines and selectively coupled to one of the column power lines. In addition, the device includes multiple row power switches and multiple column power switches arranged in pairs, where each pair includes one of the row power switches and one of the column power switches. Each pair is configured to selectively (i) connect a corresponding one of the rows and a corresponding one of the columns or (ii) isolate the corresponding one row and the corresponding one column from each other.Type: GrantFiled: December 15, 2021Date of Patent: January 17, 2023Assignee: Raytheon CompanyInventors: Jehyuk Rhee, Bryan W. Kean, John L. Vampola
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Patent number: 11463639Abstract: A TDI scanner including a dynamically programmable focal plane array including a two-dimensional array of detectors arranged in a plurality of columns and a plurality of rows, the array being divided into a plurality of banks separated from one another by gap regions, each bank including a plurality of sub-banks, and each sub-bank including at least one row of detectors, a ROIC coupled to the focal plane array and configured to combine in a TDI process outputs from detectors in each column of detectors in each sub-bank, and a controller configured to program the focal plane array to selectively and dynamically set characteristics of the focal plane array, the characteristics including a size and a location within the two-dimensional array of each of the plurality of sub-banks and the gap regions, the size corresponding to a number of rows of detectors included in the respective sub-bank or gap region.Type: GrantFiled: November 6, 2020Date of Patent: October 4, 2022Assignee: RAYTHEON COMPANYInventors: Steven Botts, Bryan W. Kean, Richard J. Peralta, John L. Vampola, Micky R. Harris
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Patent number: 11456746Abstract: An analog counter circuit for use with a digital pixel includes: an input; an output; a first stage electrically coupled to the input that is charged to an initial charge voltage; a second stage that includes an accumulating charge storage device; and a charge transfer device between the first and second stages that includes a transfer voltage. The charge transfer device allows charge from the first stage to pass to the second stage and be accumulated on the accumulating charge storage device as long as a voltage at a node in the first stage is greater than the transfer voltage.Type: GrantFiled: January 22, 2020Date of Patent: September 27, 2022Assignee: RAYTHEON COMPANYInventors: Richard E. Wahl, Joshua J. Cantrell, John L. Vampola, Micky R. Harris
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Patent number: 11356622Abstract: An image capturing device is provided, which includes a capacitive trans-impedance amplifier (CTIA) unit cell. The CTIA unit cell includes an image detector and a switching network. The image detector is configured to detect light having a first color and light having a second color different from the first color, and to generate a photocurrent in response to detecting the light. The switching network includes a CTIA switch, a CTIA low reset switch, and a CTIA high-reset biasing switch. The CTIA switch sets a first reset level of the CTIA unit cell to a first voltage in response invoking a first switching state of the CTIA low-reset switch and sets a second reset level of the CTIA to a second voltage greater than the first voltage level in response to invoking a second switching state of the CTIA low-reset switch.Type: GrantFiled: March 26, 2021Date of Patent: June 7, 2022Assignee: RAYTHEON COMPANYInventors: Bryan W. Kean, John L. Vampola, Joshua J. Cantrell
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Publication number: 20220157881Abstract: A direct-bond hybridization (DBH) method is provided to assemble a sensor wafer device. The DBH method includes fabricating an optical element on a handle wafer and depositing first oxide with n-x thickness on the optical element where n is an expected final oxide thickness of the sensor wafer, depositing second oxide with x thickness onto a sensor wafer, executing layer transfer of the optical element by a DBH fusion bond technique to the sensor wafer whereby the first and second oxides form an oxide layer of n thickness between the optical element and the sensor wafer and removing the handle wafer.Type: ApplicationFiled: November 19, 2020Publication date: May 19, 2022Inventors: Jamal I. Mustafa, Robert C. Anderson, John L. Vampola, Sean P. Kilcoyne, Eric R. Miller, George Grama
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Patent number: 11284025Abstract: A digital pixel includes a capacitive transimpedance amplifier (CTIA) coupled to a photodiode that receives an electrical charge and output an integration voltage. An integration capacitor coupled to the CTIA accumulates the integration voltage over an integration period. A comparator compares the accumulated integration voltage with a threshold voltage and generates a control signal at a first level each time the accumulated integration voltage is greater than the threshold voltage. A charge subtraction circuit receives the control signal at the first level and discharges the accumulated integration voltage each time the control signal at the first level is received from the comparator. An analog or digital counter receives the control signal at the first level and adjusts a counter value each time the control signal is received from the comparator. An output interface communicates the counter value to an image processing circuit at an end of the integration period.Type: GrantFiled: June 2, 2020Date of Patent: March 22, 2022Assignee: Raytheon CompanyInventors: Neil R. Malone, Micky Harris, Adam M. Kennedy, George Paloczi, John L. Vampola, Christian M. Boemler
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Publication number: 20210377470Abstract: A digital pixel includes a capacitive transimpedence amplifier (CTIA) coupled to a photodiode that receives an electrical charge and output an integration voltage. An integration capacitor coupled to the CTIA accumulates the integration voltage over an integration period. A comparator compares the accumulated integration voltage with a threshold voltage and generates a control signal at a first level each time the accumulated integration voltage is greater than the threshold voltage. A charge subtraction circuit receives the control signal at the first level and discharges the accumulated integration voltage each time the control signal at the first level is received from the comparator. An analog or digital counter receives the control signal at the first level and adjusts a counter value each time the control signal is received from the comparator. An output interface communicates the counter value to an image processing circuit at an end of the integration period.Type: ApplicationFiled: June 2, 2020Publication date: December 2, 2021Applicant: Raytheon CompanyInventors: Neil R. Malone, Micky Harris, Adam M. Kennedy, George Paloczi, John L. Vampola, Christian M. Boemler
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Publication number: 20210226638Abstract: An analog counter circuit for use with a digital pixel includes: an input; an output; a first stage electrically coupled to the input that is charged to an initial charge voltage; a second stage that includes an accumulating charge storage device; and a charge transfer device between the first and second stages that includes a transfer voltage. The charge transfer device allows charge from the first stage to pass to the second stage and be accumulated on the accumulating charge storage device as long as a voltage at a node in the first stage is greater than the transfer voltage.Type: ApplicationFiled: January 22, 2020Publication date: July 22, 2021Inventors: Richard E. Wahl, Joshua J. Cantrell, John L. Vampola, Micky R. Harris
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Publication number: 20210105425Abstract: A TDI scanner including a dynamically programmable focal plane array including a two-dimensional array of detectors arranged in a plurality of columns and a plurality of rows, the array being divided into a plurality of banks separated from one another by gap regions, each bank including a plurality of sub-banks, and each sub-bank including at least one row of detectors, a ROIC coupled to the focal plane array and configured to combine in a TDI process outputs from detectors in each column of detectors in each sub-bank, and a controller configured to program the focal plane array to selectively and dynamically set characteristics of the focal plane array, the characteristics including a size and a location within the two-dimensional array of each of the plurality of sub-banks and the gap regions, the size corresponding to a number of rows of detectors included in the respective sub-bank or gap region.Type: ApplicationFiled: November 6, 2020Publication date: April 8, 2021Inventors: Steven Botts, Bryan W. Kean, Richard J. Peralta, John L. Vampola, Micky R. Harris
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Patent number: 10834346Abstract: A TDI scanner including a dynamically programmable focal plane array including a two-dimensional array of detectors arranged in a plurality of columns and a plurality of rows, the array being divided into a plurality of banks separated from one another by gap regions, each bank including a plurality of sub-banks, and each sub-bank including at least one row of detectors, a ROIC coupled to the focal plane array and configured to combine in a TDI process outputs from detectors in each column of detectors in each sub-bank, and a controller configured to program the focal plane array to selectively and dynamically set characteristics of the focal plane array, the characteristics including a size and a location within the two-dimensional array of each of the plurality of sub-banks and the gap regions, the size corresponding to a number of rows of detectors included in the respective sub-bank or gap region.Type: GrantFiled: May 30, 2019Date of Patent: November 10, 2020Assignee: RAYTHEON COMPANYInventors: Steven Botts, Bryan W. Kean, Richard J. Peralta, John L. Vampola, Micky R. Harris
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Patent number: 10672826Abstract: An imaging system includes a focal plane array comprising a first row of photodetectors, a second row of photodetectors adjacent to the first row of photodetectors, and a segmented isolation grid including portions disposed between photodetectors in the first row of photodetectors and photodetectors in the second row of photodetectors.Type: GrantFiled: April 18, 2018Date of Patent: June 2, 2020Assignee: RAYTHEON COMPANYInventors: Sean P. Kilcoyne, John L. Vampola, George Paloczi
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Publication number: 20190373194Abstract: A TDI scanner including a dynamically programmable focal plane array including a two-dimensional array of detectors arranged in a plurality of columns and a plurality of rows, the array being divided into a plurality of banks separated from one another by gap regions, each bank including a plurality of sub-banks, and each sub-bank including at least one row of detectors, a ROIC coupled to the focal plane array and configured to combine in a TDI process outputs from detectors in each column of detectors in each sub-bank, and a controller configured to program the focal plane array to selectively and dynamically set characteristics of the focal plane array, the characteristics including a size and a location within the two-dimensional array of each of the plurality of sub-banks and the gap regions, the size corresponding to a number of rows of detectors included in the respective sub-bank or gap region.Type: ApplicationFiled: May 30, 2019Publication date: December 5, 2019Inventors: Steven Botts, Bryan W. Kean, Richard J. Peralta, John L. Vampola, Micky R. Harris
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Publication number: 20190326346Abstract: An imaging system includes a focal plane array comprising a first row of photodetectors, a second row of photodetectors adjacent to the first row of photodetectors, and a segmented isolation grid including portions disposed between photodetectors in the first row of photodetectors and photodetectors in the second row of photodetectors.Type: ApplicationFiled: April 18, 2018Publication date: October 24, 2019Inventors: Sean P. Kilcoyne, John L. Vampola, George Paloczi
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Patent number: 10418406Abstract: Aspects and examples described herein provide a hybrid imaging sensor chip assembly for reducing undesired radiative transfer between a complementary metal-oxide semiconductor (CMOS) read-out integrated circuit (ROIC) and an optical detector, and methods of manufacturing a hybrid imaging sensor chip assembly. In one example, a hybrid imaging sensor chip assembly includes an optical detector configured to collect electromagnetic radiation incident thereon, a complementary metal-oxide semiconductor (CMOS) read-out integrated circuit (ROIC), and a radiation-shielding wafer interposed between the optical detector and the CMOS ROIC, the radiation-shielding wafer including a plurality of through wafer vias (TWVs) electrically coupled to the optical detector and the CMOS ROIC, the radiation-shielding wafer being positioned to prevent radiative transfer between the CMOS ROIC and the optical detector.Type: GrantFiled: December 28, 2017Date of Patent: September 17, 2019Assignee: RAYTHEON COMPANYInventors: Sean P. Kilcoyne, John L. Vampola, Barry M. Starr, Chad W. Fulk, Christopher L. Mears, John J. Drab
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Publication number: 20190059776Abstract: A system including a detector array configured to receive electromagnetic (EM) radiation from a target object, the detector array having one or more detectors is disclosed. The system also includes a readout integrated circuit and one or more processors. The readout integrated circuit has a circuit comprising a number of detector boundary selection components, each one of the number of detector boundary selection components configured to select or adjust a detector boundary from least one of a sub-column boundary or an adjustable boundary.Type: ApplicationFiled: October 29, 2018Publication date: February 28, 2019Applicant: Raytheon CompanyInventors: Matthew D. Chambers, John L. Vampola, Micky Harris
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Publication number: 20190059775Abstract: A system including a detector array configured to receive electromagnetic (EM) radiation from a target object, the detector array having one or more detectors is disclosed. The system also includes a readout integrated circuit and one or more processors. The readout integrated circuit has a circuit comprising a number of detector boundary selection components, each one of the number of detector boundary selection components configured to select or adjust a detector boundary from least one of a sub-column boundary or an adjustable boundary.Type: ApplicationFiled: October 29, 2018Publication date: February 28, 2019Applicant: Raytheon CompanyInventors: Matthew D. Chambers, John L. Vampola, Micky Harris
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Patent number: 10213127Abstract: A system including a detector array configured to receive electromagnetic (EM) radiation from a target object, the detector array having one or more detectors is disclosed. The system also includes a readout integrated circuit and one or more processors. The readout integrated circuit has a circuit comprising a number of detector boundary selection components, each one of the number of detector boundary selection components configured to select or adjust a detector boundary from least one of a sub-column boundary or an adjustable boundary.Type: GrantFiled: October 29, 2018Date of Patent: February 26, 2019Assignee: Raytheon CompanyInventors: Matthew D. Chambers, John L. Vampola, Micky Harris
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Patent number: 10213126Abstract: A system including a detector array configured to receive electromagnetic (EM) radiation from a target object, the detector array having one or more detectors is disclosed. The system also includes a readout integrated circuit and one or more processors. The readout integrated circuit has a circuit comprising a number of detector boundary selection components, each one of the number of detector boundary selection components configured to select or adjust a detector boundary from least one of a sub-column boundary or an adjustable boundary.Type: GrantFiled: October 29, 2018Date of Patent: February 26, 2019Assignee: Raytheon CompanyInventors: Matthew D. Chambers, John L. Vampola, Micky Harris
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Patent number: 10130280Abstract: A system including a detector array configured to receive electromagnetic (EM) radiation from a target object, the detector array having one or more detectors is disclosed. The system also includes a readout integrated circuit and one or more processors. The readout integrated circuit has a circuit comprising a number of detector boundary selection components, each one of the number of detector boundary selection components configured to select or adjust a detector boundary from least one of a sub-column boundary or an adjustable boundary.Type: GrantFiled: May 13, 2015Date of Patent: November 20, 2018Assignee: Raytheon CompanyInventors: Matthew D. Chambers, John L. Vampola, Micky Harris