Patents by Inventor Ramy Tantawy
Ramy Tantawy 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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Publication number: 20230179219Abstract: An integrated circuit (IC) includes an analog to digital converter (ADC) circuit having an ADC input and an ADC output. The ADC circuit is configured to receive an input signal at the ADC input and generate a digital output signal at the ADC output based on the input signal. An ADC circuit path is coupled between the ADC input and the ADC output. The ADC circuit comprises a plurality of capacitors coupled between reference voltage sources and the ADC circuit path. The ADC has a reconfigurable resolution and a reconfigurable sampling rate. The ADC circuit is configured to scale the reference voltage sources and/or the plurality of capacitors based on the reconfigurable resolution.Type: ApplicationFiled: January 30, 2023Publication date: June 8, 2023Inventor: Ramy Tantawy
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Patent number: 11570392Abstract: An imager device includes a pixel sensor configured to receive and convert incident radiation into a pixel signal and a readout circuit configured to receive the pixel signal from the pixel sensor, generate a received signal strength indicator (RSSI) value based on the pixel signal, and generate a digital signal based on the RSSI value and the pixel signal.Type: GrantFiled: May 29, 2020Date of Patent: January 31, 2023Assignee: Senseics CorporationInventor: Ramy Tantawy
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Patent number: 11521994Abstract: An open circuit voltage photodetector comprises a photovoltaic device including a photovoltaic junction, and a transistor. The photovoltaic device is connected to the gate terminal of the transistor to input an open circuit voltage of the photovoltaic device to the gate terminal. An array of such photodetectors and a readout integrated circuit forms an image sensor. In a photodetection method, an open circuit voltage is generated in a photovoltaic device in response to illumination by incident radiation, and the open circuit voltage is applied to a gate terminal of a transistor to modulate a channel current flowing in a channel of the transistor. A readout electronic circuit may be fabricated with an extra transistor, and a photovoltaic device disposed on the readout electronic circuit and electrically connected to apply an open circuit voltage of the photovoltaic device to a gate of the extra transistor.Type: GrantFiled: December 5, 2018Date of Patent: December 6, 2022Assignee: Ohio State Innovation FoundationInventors: Sanjay Krishna, Earl Fuller, Waleed Khalil, Theodore Ronningen, Alireza Kazemi, Dale Shane Smith, Teressa Specht, Ramy Tantawy
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Publication number: 20210375957Abstract: An open circuit voltage photodetector comprises a photovoltaic device including a photovoltaic junction, and a transistor. The photovoltaic device is connected to the gate terminal of the transistor to input an open circuit voltage of the photovoltaic device to the gate terminal. An array of such photodetectors and a readout integrated circuit forms an image sensor. In a photodetection method, an open circuit voltage is generated in a photovoltaic device in response to illumination by incident radiation, and the open circuit voltage is applied to a gate terminal of a transistor to modulate a channel current flowing in a channel of the transistor. A readout electronic circuit may be fabricated with an extra transistor, and a photovoltaic device disposed on the readout electronic circuit and electrically connected to apply an open circuit voltage of the photovoltaic device to a gate of the extra transistor.Type: ApplicationFiled: December 5, 2018Publication date: December 2, 2021Applicant: OHIO STATE INNOVATION FOUNDATIONInventors: Sanjay Krishna, Earl Fuller, Waleed Khalil, Theodore RONNINGEN, Alireza Kazemi, Dale Shane Smith, Teressa Specht, Ramy Tantawy
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Publication number: 20210037201Abstract: An imager device includes a pixel sensor configured to receive and convert incident radiation into a pixel signal and a readout circuit configured to receive the pixel signal from the pixel sensor, generate a received signal strength indicator (RSSI) value based on the pixel signal, and generate a digital signal based on the RSSI value and the pixel signal.Type: ApplicationFiled: May 29, 2020Publication date: February 4, 2021Inventor: Ramy Tantawy
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Patent number: 10297630Abstract: A system that has plural different photodetector circuits, each photodetector circuit including its own transfer gate, and each of the plural different photodetector circuits and transfer gates commonly connected to a first node. In amplifier is used which maintains a fixed voltage edits input. The amplifier Has a first capacitance to ground in a second capacitance as a feedback between its output and input. In one embodiment, there are 16 photodetector circuits connected to the single amplifier. In embodiments, the photodetector circuits can be located in one substrate while the amplifier is located in another substrate, and the amplifier also minimizes parasitics between the substrates.Type: GrantFiled: June 17, 2013Date of Patent: May 21, 2019Assignee: Forza Silicon CorporationInventors: Barmak Mansoorian, Ramy Tantawy
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Patent number: 9661243Abstract: An imaging device and method for operating the imaging device. Some embodiments comprise a pixel array configured as rows and columns of binning pixel units, each binning pixel unit including a plurality of photosensors that generate respective charge signals in response to incident light. Each binning pixel unit is configured to selectively bin the charge from at least two of the photosensors. The pixel array may be readout in a binning-pixel-unit row by binning-pixel-unit row basis. During readout of each binning pixel unit row, each binning pixel unit in the row is operable to selectively bin at least two of the charge signals therein based on a respective one of control signals provided to each of the binning pixel units in the row. In reading out a binning pixel unit row for a given image frame, a first binning pixel unit may perform in-pixel charge domain binning while a second binning pixel unit in the row may not bin the charge from the different photosensors therein.Type: GrantFiled: March 17, 2014Date of Patent: May 23, 2017Assignee: FORZA SILICON CORPORATIONInventors: Guang Yang, Ramy Tantawy
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Publication number: 20140263964Abstract: An imaging device and method for operating the imaging device. Some embodiments comprise a pixel array configured as rows and columns of binning pixel units, each binning pixel unit including a plurality of photosensors that generate respective charge signals in response to incident light. Each binning pixel unit is configured to selectively bin the charge from at least two of the photosensors. The pixel array may be readout in a binning-pixel-unit row by binning-pixel-unit row basis. During readout of each binning pixel unit row, each binning pixel unit in the row is operable to selectively bin at least two of the charge signals therein based on a respective one of control signals provided to each of the binning pixel units in the row. In reading out a binning pixel unit row for a given image frame, a first binning pixel unit may perform in-pixel charge domain binning while a second binning pixel unit in the row may not bin the charge from the different photosensors therein.Type: ApplicationFiled: March 17, 2014Publication date: September 18, 2014Inventors: Guang Yang, Ramy Tantawy
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Patent number: 8816892Abstract: A successive approximation A/D converter which includes a sub ranging classifier that receives an input signal and classifies said input signal according to plural different highest resolution bits, to determine a range of the input signal, and creating a set of most significant bits based on said range, said subranging classifier also setting and determining an offset based on said range, and a successive approximation A/D converted that converting lowest resolution parts of the input signal as adjusted by the offset.Type: GrantFiled: October 20, 2012Date of Patent: August 26, 2014Assignee: Forza Silicon CorporationInventors: Steven Huang, Ramy Tantawy, Daniel Van Blerkom, Barmak Mansoorian
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Publication number: 20140077986Abstract: A successive approximation A/D converter which includes a sub ranging classifier that receives an input signal and classifies said input signal according to plural different highest resolution bits, to determine a range of the input signal, and creating a set of most significant bits based on said range, said subranging classifier also setting and determining an offset based on said range, and a successive approximation A/D converted that converting lowest resolution parts of the input signal as adjusted by the offset.Type: ApplicationFiled: October 20, 2012Publication date: March 20, 2014Applicant: FORZA SILICON CORPORATIONInventors: Steven Huang, Ramy Tantawy, Daniel Van Blerkom, Barmak Mansoorian
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Publication number: 20130341490Abstract: A system that has plural different photodetector circuits, each photodetector circuit including its own transfer gate, and each of the plural different photodetector circuits and transfer gates commonly connected to a first node. In amplifier is used which maintains a fixed voltage edits input. The amplifier Has a first capacitance to ground in a second capacitance as a feedback between its output and input. In one embodiment, there are 16 photodetector circuits connected to the single amplifier. In embodiments, the photodetector circuits can be located in one substrate while the amplifier is located in another substrate, and the amplifier also minimizes parasitics between the substrates.Type: ApplicationFiled: June 17, 2013Publication date: December 26, 2013Applicant: FORZA SILICON CORPORATIONInventors: Barmak Mansoorian, Ramy Tantawy