Patents by Inventor Shouyuan Shi
Shouyuan Shi 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: 11909424Abstract: In certain embodiments, an apparatus includes a switch matrix and frequency band isolation circuitry. The switch matrix is configured to receive, at an input port, an electrical signal, which corresponds to a transmission signal received at antennas of an antenna array. The transmission signal corresponds to a transmission spatial sector of the array. The electrical signal includes first and second signal portions in first and second frequency bands, respectively, the electrical signal having been generated from an optical signal that corresponds to the transmission signal. The switch matrix is configured to direct, via an output port and in accordance with a control signal, the electrical signal to a first of multiple signal conversion paths.Type: GrantFiled: December 3, 2021Date of Patent: February 20, 2024Assignees: Futurewei Technologies, Inc., Phase Sensitive Innovations, Inc.Inventors: Stefano Galli, Munawar Kermalli, Xiao-Feng Qi, Shouyuan Shi, Dennis Prather, Janusz Murakowski, Garrett Schneider
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Publication number: 20240056186Abstract: An optical imaging system and method that reconstructs RF sources in k-space by utilizing interference amongst modulated optical beams. The system and method involves recording with photodetectors the interference pattern produced by RF-modulated optical beams conveyed by optical fibers having unequal lengths. The photodetectors record the interference, and computational analysis using known tomography reconstruction methods is performed to reconstruct the RF sources in k-space.Type: ApplicationFiled: October 24, 2023Publication date: February 15, 2024Inventors: Janusz Murakowski, Christopher Schuetz, Garrett Schneider, Shouyuan Shi
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Publication number: 20240030598Abstract: Disclosed herein is a swappable modular-based radiofrequency (RF) frontend that is reconfigurable to form transmitting (TX) and receiving (RX) phased array systems for diverse applications. Such swappable RF frontend may be used with unique spatial and spectral optical processing of complex RF signals over an ultra-wide frequency band. The swappable RF front end may be used in conjunction with an optically upconverted imaging receiver and/or in conjunction with optically addressed phased array technologies transmitters.Type: ApplicationFiled: July 20, 2023Publication date: January 25, 2024Inventors: Shouyuan Shi, Dennis Prather
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Publication number: 20230420841Abstract: An RF receiver may include antenna elements to receive RF signals, and electro-optic modulators to generate corresponding upconverted optical signals by mixing an RF signal with an optical carrier beam. The RF receiver may include a transmission array having a first bundle of optical waveguides that receive and transmit upconverted optical signals from their ends. The ends may be arranged in a first pattern. The RF receiver may include an interference space to receive the upconverted optical signals to form a composite beam, and an array of single mode optical fibers that have lenses positioned in a detection plane to receive a portion of the composite beam. The first pattern of the ends generates an RF emitter interference pattern at the detection plane, and the single mode optical fiber lenses have a geometric arrangement that corresponds to the first RF emitter interference pattern.Type: ApplicationFiled: September 7, 2023Publication date: December 28, 2023Inventors: Garrett Schneider, Christopher Schuetz, Janusz Murakowski, Tom Dillon, Shouyuan Shi, Dennis Prather
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Patent number: 11838050Abstract: An optical imaging system and method that reconstructs RF sources in k-space by utilizing interference amongst modulated optical beams. In some examples, the system and method may record the interference pattern produced by RF-modulated optical beams conveyed by optical fibers having unequal lengths. The photodetectors record the interference, and computational analysis using known tomography reconstruction methods is performed to reconstruct the RF sources in k-space.Type: GrantFiled: January 18, 2021Date of Patent: December 5, 2023Assignee: Phase Sensitive Innovations, Inc.Inventors: Janusz Murakowski, Christopher Schuetz, Garrett Schneider, Shouyuan Shi
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Patent number: 11784406Abstract: An RF receiver may include antenna elements to receive RF signals, and electro-optic modulators to generate corresponding upconverted optical signals by mixing an RF signal with an optical carrier beam. The RF receiver may include a transmission array having a first bundle of optical waveguides that receive and transmit upconverted optical signals from their ends. The ends may be arranged in a first pattern. The RF receiver may include an interference space to receive the upconverted optical signals to form a composite beam, and an array of single mode optical fibers that have lenses positioned in a detection plane to receive a portion of the composite beam. The first pattern of the ends generates an RF emitter interference pattern at the detection plane, and the single mode optical fiber lenses have a geometric arrangement that corresponds to the first RF emitter interference pattern.Type: GrantFiled: November 10, 2021Date of Patent: October 10, 2023Assignee: Phase Sensitive Innovations, Inc.Inventors: Garrett Schneider, Christopher Schuetz, Janusz Murakowski, Tom Dillon, Shouyuan Shi, Dennis Prather
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Patent number: 11749887Abstract: Disclosed herein is a swappable modular-based radiofrequency (RF) frontend that is reconfigurable to form transmitting (TX) and receiving (RX) phased array systems for diverse applications. Such swappable RF frontend may be used with unique spatial and spectral optical processing of complex RF signals over an ultra-wide frequency band. The swappable RF front end may be used in conjunction with an optically upconverted imaging receiver and/or in conjunction with optically addressed phased array technologies transmitters.Type: GrantFiled: May 19, 2021Date of Patent: September 5, 2023Assignee: Phase Sensitive Innovations, Inc.Inventors: Shouyuan Shi, Dennis Prather
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Patent number: 11721896Abstract: In the disclosed optically-fed transmitting phased-array architecture, transmitting signals are converted between the electrical domain and the optical domain by using electro-optic (EO) modulators and photodiodes. RF signal(s) generated from a relatively low frequency source modulate an optical carrier signal. This modulated optical signal can be remotely imparted to photodiodes via optical fibers. Desired RF signals may be recovered by photo-mixing at the photodiodes whose wired RF outputs are then transmitted to radiating elements of the antennas. The antenna array may generate a physical RF beam that transmits an RF signal that is focused on one or more selectable locations. Multiple RF beams may be simultaneously generated, each RF beam being capable of being directed to focus on a unique location or set of locations.Type: GrantFiled: October 6, 2021Date of Patent: August 8, 2023Assignee: Phase Sensitive Innovations, Inc.Inventors: Shouyuan Shi, Dennis Prather, Janusz Murakowski, Matthew Konkol
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Publication number: 20230109253Abstract: A method of RF signal processing comprises receiving an incoming RF signal at each of a plurality of antenna elements that are arranged in a first pattern. The received RF signals from each of the plurality of antenna elements are modulated onto an optical carrier to generate a plurality of modulated signals that each have at least one sideband. The modulated signals are directed along a corresponding plurality of optical channels with outputs arranged in a second pattern corresponding to the first pattern. A composite optical signal is formed using light emanating from the outputs of the plurality of optical channels. Non-spatial information contained in at least one of the received RF signals is extracted from the composite signal.Type: ApplicationFiled: November 29, 2022Publication date: April 6, 2023Inventors: Chris Schuetz, Janusz Murakowski, Garrett Schneider, Shouyuan Shi, Dennis Prather
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Patent number: 11515945Abstract: A method of RF signal processing comprises receiving an incoming RF signal at each of a plurality of antenna elements that are arranged in a first pattern. The received RF signals from each of the plurality of antenna elements are modulated onto an optical carrier to generate a plurality of modulated signals that each have at least one sideband. The modulated signals are directed along a corresponding plurality of optical channels with outputs arranged in a second pattern corresponding to the first pattern. A composite optical signal is formed using light emanating from the outputs of the plurality of optical channels. Non-spatial information contained in at least one of the received RF signals is extracted from the composite signal.Type: GrantFiled: May 17, 2021Date of Patent: November 29, 2022Assignee: Phase Sensitive Innovations, Inc.Inventors: Chris Schuetz, Janusz Murakowski, Garrett Schneider, Shouyuan Shi, Dennis Prather
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Publication number: 20220166137Abstract: In certain embodiments, a system includes an optical switch matrix, an optical lens coupled to the switch matrix, and a wireless transmitter coupled to the lens. The switch matrix is configured to switch first optical signals from input ports to output ports of the switch matrix, and output second optical signals that are based at least partially on the first optical signals. The lens is configured to transform wave formats of the second optical signals based on the output ports over which the second optical signals are received. The transmitter includes an antenna array and circuitry coupled to the array. The circuitry is configured to receive the second optical signals from the lens, convert the second optical signals into beamformed wireless signals in accordance with the transformed formats, and transmit the beamformed wireless signals, which signals have spatial characteristics in accordance with the transformed formats, over the array.Type: ApplicationFiled: December 3, 2021Publication date: May 26, 2022Inventors: Stefano Galli, Munawar Kermalli, Xiao-Feng Qi, Shouyuan Shi, Dennis Prather, Janusz Murakowski, Garrett Schneider
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Publication number: 20220149520Abstract: An RF receiver may include antenna elements to receive RF signals, and electro-optic modulators to generate corresponding upconverted optical signals by mixing an RF signal with an optical carrier beam. The RF receiver may include a transmission array having a first bundle of optical waveguides that receive and transmit upconverted optical signals from their ends. The ends may be arranged in a first pattern. The RF receiver may include an interference space to receive the upconverted optical signals to form a composite beam, and an array of single mode optical fibers that have lenses positioned in a detection plane to receive a portion of the composite beam. The first pattern of the ends generates an RF emitter interference pattern at the detection plane, and the single mode optical fiber lenses have a geometric arrangement that corresponds to the first RF emitter interference pattern.Type: ApplicationFiled: November 10, 2021Publication date: May 12, 2022Inventors: Garrett Schneider, Christopher Schuetz, Janusz Murakowski, Tom Dillon, Shouyuan Shi, Dennis Prather
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Publication number: 20220094374Abstract: In certain embodiments, an apparatus includes a switch matrix and frequency band isolation circuitry. The switch matrix is configured to receive, at an input port, an electrical signal, which corresponds to a transmission signal received at antennas of an antenna array. The transmission signal corresponds to a transmission spatial sector of the array. The electrical signal includes first and second signal portions in first and second frequency bands, respectively, the electrical signal having been generated from an optical signal that corresponds to the transmission signal. The switch matrix is configured to direct, via an output port and in accordance with a control signal, the electrical signal to a first of multiple signal conversion paths.Type: ApplicationFiled: December 3, 2021Publication date: March 24, 2022Inventors: Stefano Galli, Munawar Kermalli, Xiao-Feng Qi, Shouyuan Shi, Dennis Prather, Janusz Murakowski, Garrett Schneider
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Publication number: 20220029287Abstract: In the disclosed optically-fed transmitting phased-array architecture, transmitting signals are converted between the electrical domain and the optical domain by using electro-optic (EO) modulators and photodiodes. RF signal(s) generated from a relatively low frequency source modulate an optical carrier signal. This modulated optical signal can be remotely imparted to photodiodes via optical fibers. Desired RF signals may be recovered by photo-mixing at the photodiodes whose wired RF outputs are then transmitted to radiating elements of the antennas. The antenna array may generate a physical RF beam that transmits an RF signal that is focused on one or more selectable locations. Multiple RF beams may be simultaneously generated, each RF beam being capable of being directed to focus on a unique location or set of locations.Type: ApplicationFiled: October 6, 2021Publication date: January 27, 2022Inventors: Shouyuan Shi, Dennis Prather, Janusz Murakowski, Matthew Konkol
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Patent number: 11205843Abstract: An RF receiver may include antenna elements to receive RF signals, and electro-optic modulators to generate corresponding upconverted optical signals by mixing an RF signal with an optical carrier beam. The RF receiver may include a transmission array having a first bundle of optical waveguides that receive and transmit upconverted optical signals from their ends. The ends may be arranged in a first pattern. The RF receiver may include an interference space to receive the upconverted optical signals to form a composite beam, and an array of single mode optical fibers that have lenses positioned in a detection plane to receive a portion of the composite beam. The first pattern of the ends generates an RF emitter interference pattern at the detection plane, and the single mode optical fiber lenses have a geometric arrangement that corresponds to the first RF emitter interference pattern.Type: GrantFiled: May 1, 2019Date of Patent: December 21, 2021Assignee: Phase Sensitive Innovations, Inc.Inventors: Garrett Schneider, Christopher Schuetz, Janusz Murakowski, Tom Dillon, Shouyuan Shi, Dennis Prather
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Patent number: 11152700Abstract: In the disclosed optically-fed transmitting phased-array architecture, transmitting signals are converted between the electrical domain and the optical domain by using electro-optic (EO) modulators and photodiodes. RF signal(s) generated from a relatively low frequency source modulate an optical carrier signal. This modulated optical signal can be remotely imparted to photodiodes via optical fibers. Desired RF signals may be recovered by photo-mixing at the photodiodes whose wired RF outputs are then transmitted to radiating elements of the antennas. The antenna array may generate a physical RF beam that transmits an RF signal that is focused on one or more selectable locations. Multiple RF beams may be simultaneously generated, each RF beam being capable of being directed to focus on a unique location or set of locations.Type: GrantFiled: April 16, 2019Date of Patent: October 19, 2021Assignee: Phase Sensitive Innovations, Inc.Inventors: Shouyuan Shi, Dennis Prather, Janusz Murakowski, Matthew Konkol
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Publication number: 20210281324Abstract: A method of RF signal processing comprises receiving an incoming RF signal at each of a plurality of antenna elements that are arranged in a first pattern. The received RF signals from each of the plurality of antenna elements are modulated onto an optical carrier to generate a plurality of modulated signals that each have at least one sideband. The modulated signals are directed along a corresponding plurality of optical channels with outputs arranged in a second pattern corresponding to the first pattern. A composite optical signal is formed using light emanating from the outputs of the plurality of optical channels. Non-spatial information contained in at least one of the received RF signals is extracted from the composite signal.Type: ApplicationFiled: May 17, 2021Publication date: September 9, 2021Inventors: Chris Schuetz, Janusz Murakowski, Garrett Schneider, Shouyuan Shi, Dennis Prather
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Publication number: 20210273329Abstract: Disclosed herein is a swappable modular-based radiofrequency (RF) frontend that is reconfigurable to form transmitting (TX) and receiving (RX) phased array systems for diverse applications. Such swappable RF frontend may be used with unique spatial and spectral optical processing of complex RF signals over an ultra-wide frequency band. The swappable RF front end may be used in conjunction with an optically upconverted imaging receiver and/or in conjunction with optically addressed phased array technologies transmitters.Type: ApplicationFiled: May 19, 2021Publication date: September 2, 2021Inventors: Shouyuan Shi, Dennis Prather
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Publication number: 20210242941Abstract: An optical imaging system and method that reconstructs RF sources in k-space by utilizing interference amongst modulated optical beams. In some examples, the system and method may record the interference pattern produced by RF-modulated optical beams conveyed by optical fibers having unequal lengths. The photodetectors record the interference, and computational analysis using known tomography reconstruction methods is performed to reconstruct the RF sources in k-space.Type: ApplicationFiled: January 18, 2021Publication date: August 5, 2021Inventors: Janusz Murakowski, Christopher Schuetz, Garrett Schneider, Shouyuan Shi
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Publication number: 20210232045Abstract: This disclosure is directed to two-dimensional conformal optically-fed phased arrays and methods for manufacturing the same. The method includes providing a wafer substrate, depositing a first cladding layer on the wafer substrate, and depositing a core layer on the first cladding layer. The method further includes photolithographically patterning the core layer to provide a plurality of optical waveguide cores, and depositing a second cladding layer on the core layer to cover the plurality of optical waveguide cores to provide a plurality of optical waveguides. In addition, the method includes forming a plurality of antennas on the second cladding layer, each antenna of the plurality of antennas located near a termination of a corresponding optical waveguide of the plurality of optical waveguides, and providing a plurality of photodiodes on the second cladding layer, each photodiode of the plurality of photodiodes connected to a corresponding antenna.Type: ApplicationFiled: January 27, 2021Publication date: July 29, 2021Applicant: Phase Sensitive Innovations, Inc.Inventors: Shouyuan Shi, Dennis Prather, Peng Yao, Janusz MURAKOWSKI