Patents by Inventor Stephen W. Alland
Stephen W. Alland 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: 11906620Abstract: A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system includes transmitters configured to transmit radio signals, receivers configured to receive radar signals, and a control unit. The received radio signals include transmitted radio signals transmitted by the transmitters and reflected from objects in an environment. The control unit adaptively controls the transmitters and the receivers based on a selected operating mode for the radar system. The selected operating mode meets a desired operational objective defined by current environmental conditions. The control unit is configured to control the receivers to produce and process data according to the selected operating mode.Type: GrantFiled: August 6, 2021Date of Patent: February 20, 2024Assignee: Uhnder, Inc.Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Patent number: 11821981Abstract: A method for operating a radar sensing system includes configuring a transmitter to transmit a radio signal. A receiver is configured to receive radio signals. The received radio signals include the transmitted radio signal transmitted by the transmitter and reflected from objects in the environment. The method includes with advanced temporal knowledge of the codes used to modulate the transmitted radio signal, using code values of the plurality of codes, and in combination with a bank of digital finite impulse response (FIR) filters, generating complementary signals of any self-interference noise. The method further includes subtracting the complementary signals at one or more points in the receiver prior to the interference desensing the receiver. The radar sensing system further includes a frequency modulated continuous wave (FMCW) interference canceller for detecting the largest interference signals and sequentially cancelling them while signal processing the received radio signals.Type: GrantFiled: March 28, 2023Date of Patent: November 21, 2023Assignee: UHNDER, INC.Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Publication number: 20230243964Abstract: A method for operating a radar sensing system includes configuring a transmitter to transmit a radio signal. A receiver is configured to receive radio signals. The received radio signals include the transmitted radio signal transmitted by the transmitter and reflected from objects in the environment. The method includes with advanced temporal knowledge of the codes used to modulate the transmitted radio signal, using code values of the plurality of codes, and in combination with a bank of digital finite impulse response (FIR) filters, generating complementary signals of any self-interference noise. The method further includes subtracting the complementary signals at one or more points in the receiver prior to the interference desensing the receiver. The radar sensing system further includes a frequency modulated continuous wave (FMCW) interference canceller for detecting the largest interference signals and sequentially cancelling them while signal processing the received radio signals.Type: ApplicationFiled: March 28, 2023Publication date: August 3, 2023Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Patent number: 11614538Abstract: A radar sensing system including transmit antennas and receive antennas, transmitters, receivers, and a controller. The system further includes a transmit antenna switch selectively coupling each of the transmitters to a respective transmit antenna, and a receive antenna switch selectively coupling at least one receiver of the receivers to respective receive antennas. A quantity of receivers is different from a quantity of the receive antennas. The controller is operable to select a quantity of receivers to be coupled to receive antennas to realize a desired quantity of virtual receivers. The controller is operable to select an antenna pattern as defined by the selected quantity of receivers coupled to receive antennas.Type: GrantFiled: March 1, 2022Date of Patent: March 28, 2023Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Patent number: 11543509Abstract: A bi-static radar system configured for coherent detection of a radar-signal includes a plurality of radar-transceivers, a controller, and a communications device. The plurality of radar-transceivers is characterized as physically spaced apart with respect to each other. The controller is in communication with the each of the radar-transceivers and is configured to coherently operate each of the radar-transceivers. The communications device communicates both a reference-clock signal and a frame-sync signal from the controller to each of the plurality of radar-transceivers whereby the plurality of radar-transceivers operate coherently. Alternatively, the system may include a reference-signal generator, a transmitter, and a plurality of receivers. The reference-signal generator generates a reference-signal characterized by a reference-frequency proportional to a fraction of a radar-frequency of a radar-signal transmitted.Type: GrantFiled: April 30, 2020Date of Patent: January 3, 2023Assignee: Aptiv Technologies LimitedInventors: James F. Searcy, Ryan K. Rossiter, Stephen W. Alland
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Publication number: 20220350020Abstract: A radar sensing system including transmit antennas and receive antennas, transmitters, receivers, and a controller. The system further includes a transmit antenna switch selectively coupling each of the transmitters to a respective transmit antenna, and a receive antenna switch selectively coupling at least one receiver of the receivers to respective receive antennas. A quantity of receivers is different from a quantity of the receive antennas. The controller is operable to select a quantity of receivers to be coupled to receive antennas to realize a desired quantity of virtual receivers. The controller is operable to select an antenna pattern as defined by the selected quantity of receivers coupled to receive antennas.Type: ApplicationFiled: March 1, 2022Publication date: November 3, 2022Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Patent number: 11262448Abstract: A radar system has different modes of operation. In a method for operating the radar system, at least one of one or more transmitters are configured to transmit modulated continuous-wave radio signals, while at least one of one or more receivers are configured to receive radio signals. The received radio signals include the transmitted radio signals transmitted by the one or more transmitters and reflected from objects in the environment. The method further includes selectively modifying an operational parameter of at least one of the transmitters or at least one of the receivers. The selected operational parameter is modified to meet changing operational requirements of the radar sensing system.Type: GrantFiled: April 15, 2019Date of Patent: March 1, 2022Assignee: Uhnder, Inc.Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Publication number: 20210364634Abstract: A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system includes transmitters configured to transmit radio signals, receivers configured to receive radar signals, and a control unit. The received radio signals include transmitted radio signals transmitted by the transmitters and reflected from objects in an environment. The control unit adaptively controls the transmitters and the receivers based on a selected operating mode for the radar system. The selected operating mode meets a desired operational objective defined by current environmental conditions. The control unit is configured to control the receivers to produce and process data according to the selected operating mode.Type: ApplicationFiled: August 6, 2021Publication date: November 25, 2021Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Publication number: 20210302557Abstract: A bi-static radar system configured for coherent detection of a radar-signal includes a plurality of radar-transceivers, a controller, and a communications device. The plurality of radar-transceivers is characterized as physically spaced apart with respect to each other. The controller is in communication with the each of the radar-transceivers and is configured to coherently operate each of the radar-transceivers. The communications device communicates both a reference-clock signal and a frame-sync signal from the controller to each of the plurality of radar-transceivers whereby the plurality of radar-transceivers operate coherently. Alternatively, the system may include a reference-signal generator, a transmitter, and a plurality of receivers. The reference-signal generator generates a reference-signal characterized by a reference-frequency proportional to a fraction of a radar-frequency of a radar-signal transmitted.Type: ApplicationFiled: April 30, 2020Publication date: September 30, 2021Inventors: James F. Searcy, Ryan K. Rossiter, Stephen W. Alland
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Patent number: 11086010Abstract: A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system processes the received signal to achieve different objectives depending on one or more of a selected range resolution, a selected velocity resolution, and a selected angle of arrival resolution, as defined by memory requirements and processing requirements. The system allows improved resolution of range, Doppler and/or angle depending on the memory requirements and processing requirements. The system also adapts to changing environmental conditions including interfering radio signals.Type: GrantFiled: December 3, 2018Date of Patent: August 10, 2021Assignee: Uhnder, Inc.Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Publication number: 20200292685Abstract: A bi-static radar system configured for coherent detection of a radar-signal includes a plurality of radar-transceivers, a controller, and a communications device. The plurality of radar-transceivers is characterized as physically spaced apart with respect to each other. The controller is in communication with the each of the radar-transceivers and is configured to coherently operate each of the radar-transceivers. The communications device communicates both a reference-clock signal and a frame-sync signal from the controller to each of the plurality of radar-transceivers whereby the plurality of radar-transceivers operate coherently. Alternatively, the system may include a reference-signal generator, a transmitter, and a plurality of receivers. The reference-signal generator generates a reference-signal characterized by a reference-frequency proportional to a fraction of a radar-frequency of a radar-signal transmitted.Type: ApplicationFiled: April 30, 2020Publication date: September 17, 2020Inventors: James F. Searcy, Ryan K. Rossiter, Stephen W. Alland
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Patent number: 10641881Abstract: A bi-static radar system configured for coherent detection of a radar-signal includes a plurality of radar-transceivers, a controller, and a communications device. The plurality of radar-transceivers is characterized as physically spaced apart with respect to each other. The controller is in communication with the each of the radar-transceivers and is configured to coherently operate each of the radar-transceivers. The communications device communicates both a reference-clock signal and a frame-sync signal from the controller to each of the plurality of radar-transceivers whereby the plurality of radar-transceivers operate coherently. Alternatively, the system may include a reference-signal generator, a transmitter, and a plurality of receivers. The reference-signal generator generates a reference-signal characterized by a reference-frequency proportional to a fraction of a radar-frequency of a radar-signal transmitted.Type: GrantFiled: July 7, 2016Date of Patent: May 5, 2020Assignee: Aptiv Technologies LimitedInventors: James F. Searcy, Ryan K. Rossiter, Stephen W. Alland
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Patent number: 10573959Abstract: A radar sensing system for a vehicle, the radar sensing system including a transmitter and a receiver. The transmitter is configured to transmit a radio signal. The receiver is configured to receive the transmitted radio signal reflected from objects in the environment. The transmitter includes an antenna and is configured to transmit the radio signal via the antenna. The antenna includes a plurality of linear arrays of patch radiators. An arrangement of the linear arrays of patch radiators is selected to form a desired shaped antenna pattern having a desired mainlobe shape and desired shoulder shapes to cover selected sensing zones without nulls or holes in the coverage.Type: GrantFiled: May 18, 2017Date of Patent: February 25, 2020Assignee: Uhnder, Inc.Inventors: Stephen W. Alland, Curtis Davis, Marius Goldenberg
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Publication number: 20190271776Abstract: A radar system has different modes of operation. In a method for operating the radar system, at least one of one or more transmitters are configured to transmit modulated continuous-wave radio signals, while at least one of one or more receivers are configured to receive radio signals. The received radio signals include the transmitted radio signals transmitted by the one or more transmitters and reflected from objects in the environment. The method further includes selectively modifying an operational parameter of at least one of the transmitters or at least one of the receivers. The selected operational parameter is modified to meet changing operational requirements of the radar sensing system.Type: ApplicationFiled: April 15, 2019Publication date: September 5, 2019Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Patent number: 10261179Abstract: A radar system has different modes of operation. In one mode, the radar operates as a single-input, multiple output (SIMO) radar system utilizing one transmitted signal from one antenna at a time. Codes with known excellent autocorrelation properties are utilized in this mode. At each receiver the response after correlating with various possible transmitted signals is measured in order to estimate the interference that each transmitter will represent at each receiver. The estimated effect of the interference from one transmitter to a receiver that correlates with a different code is used to mitigate the interference. In another mode, the radar operates as a multi-input, multiple-output (MIMO) radar system utilizing all the antennas at a time. Interference cancellation of the nonideal cross-correlation sidelobes when transmitting in the MIMO mode are employed to remove ghost targets due to unwanted sidelobes.Type: GrantFiled: April 25, 2017Date of Patent: April 16, 2019Assignee: Uhnder, Inc.Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Publication number: 20190094353Abstract: A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system processes the received signal to achieve different objectives depending on one or more of a selected range resolution, a selected velocity resolution, and a selected angle of arrival resolution, as defined by memory requirements and processing requirements. The system allows improved resolution of range, Doppler and/or angle depending on the memory requirements and processing requirements. The system also adapts to changing environmental conditions including interfering radio signals.Type: ApplicationFiled: December 3, 2018Publication date: March 28, 2019Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Patent number: 10197671Abstract: A radar sensing system for a vehicle includes a plurality of transmitters, a plurality of receivers, and a plurality of receive and transmit antennas. The plurality of transmitters are configured for installation and use on a vehicle, and operable to transmit radio signals. The plurality of receivers are configured for installation and use on the vehicle, and operable to receive radio signals which include transmitted radio signals reflected from objects in the environment. The plurality of receive antennas and the plurality of transmit antennas are arranged in a selected configuration to provide a quantity of receive antennas and transmit antennas for a desired level of two-dimensional angle capability for a given board size.Type: GrantFiled: January 15, 2018Date of Patent: February 5, 2019Assignee: Uhnder, Inc.Inventors: Stephen W. Alland, Jean P. Bordes, Curtis Davis, Murtaza Ali
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Patent number: 10145954Abstract: A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system processes the received signal to achieve different objectives depending on one or more of a selected range resolution, a selected velocity resolution, and a selected angle of arrival resolution, as defined by memory requirements and processing requirements. The system allows improved resolution of range, Doppler and/or angle depending on the memory requirements and processing requirements.Type: GrantFiled: December 18, 2017Date of Patent: December 4, 2018Assignee: Uhnder, Inc.Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Publication number: 20180252809Abstract: A radar system has different modes of operation. In one mode, the radar operates as a single-input, multiple output (SIMO) radar system utilizing one transmitted signal from one antenna at a time. Codes with known excellent autocorrelation properties are utilized in this mode. At each receiver the response after correlating with various possible transmitted signals is measured in order to estimate the interference that each transmitter will represent at each receiver. The estimated effect of the interference from one transmitter to a receiver that correlates with a different code is used to mitigate the interference. In another mode, the radar operates as a multi-input, multiple-output (MIMO) radar system utilizing all the antennas at a time. Interference cancellation of the nonideal cross-correlation sidelobes when transmitting in the MIMO mode are employed to remove ghost targets due to unwanted sidelobes.Type: ApplicationFiled: April 25, 2017Publication date: September 6, 2018Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali
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Publication number: 20180149736Abstract: A radar sensing system for a vehicle includes a plurality of transmitters, a plurality of receivers, and a plurality of receive and transmit antennas. The plurality of transmitters are configured for installation and use on a vehicle, and operable to transmit radio signals. The plurality of receivers are configured for installation and use on the vehicle, and operable to receive radio signals which include transmitted radio signals reflected from objects in the environment. The plurality of receive antennas and the plurality of transmit antennas are arranged in a selected configuration to provide a quantity of receive antennas and transmit antennas for a desired level of two-dimensional angle capability for a given board size.Type: ApplicationFiled: January 15, 2018Publication date: May 31, 2018Inventors: Stephen W. Alland, Jean P. Bordes, Curtis Davis, Murtaza Ali