Patents by Inventor Jean P. Bordes
Jean P. Bordes 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: 9846228Abstract: 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 the environment, the current information stored in the radar system, and/or external information provided to the radar system. The system allows improved resolution of range, Doppler and/or angle depending on the desired objective.Type: GrantFiled: April 25, 2017Date of Patent: December 19, 2017Assignee: 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: 9829567Abstract: A radar sensing system includes at least one transmitter, at least one receiver and a processor. The at least one transmitter transmits a power shaped radio signal. The at least one receiver receives radio signal that includes the transmitted radio signal reflected from targets in the environment. The received radio signal is provided to the processor. The processor samples the received radio signal during a plurality of time intervals to produce a sampled stream. The different time intervals of the plurality of time intervals will contain different signal levels of radio signals reflected from the targets. The processor also selects a particular time interval of the plurality of time intervals that is free of samples of radio signals reflected off of the targets that are closer than a first threshold distance from an equipped vehicle.Type: GrantFiled: August 30, 2017Date of Patent: November 28, 2017Assignee: UHNDER, INC.Inventors: Curtis Davis, Jean P. Bordes, Monier Maher, Wayne Stark, Raghunath K. Rao
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Patent number: 9806914Abstract: A radar sensing system for a vehicle includes a transmitter, a receiver, and an interference mitigation processor. The transmitter transmits radio signals. The receiver receives radio signals. The received radio signals include reflected radio signals that are each transmitted radio signals reflected from objects in the environment. The receiver also down-converts and digitizes the received radio signals to produce a baseband sampled stream. The interference mitigation processor produces a second received radio signal that includes reflected radio signals that are transmitted radio signals reflected from a first object. The interference mitigation processor uses the second received radio signal to remove selected samples from the baseband sampled stream that are attributed to radio signals reflected from the first object to produce a modified baseband sampled stream. The receiver uses the modified baseband sampled stream to detect a second object more distant than the first object.Type: GrantFiled: April 19, 2017Date of Patent: October 31, 2017Assignee: UHNDER, INC.Inventors: Jean P. Bordes, Aria Eshraghi, David S. Trager, Murtaza Ali, Raghunath K. Rao
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Publication number: 20170310507Abstract: A radar sensing system for a vehicle includes a transmitter, a receiver, and an interference mitigation processor. The transmitter transmits radio signals. The receiver receives radio signals. The received radio signals include reflected radio signals that are each transmitted radio signals reflected from objects in the environment. The receiver also down-converts and digitizes the received radio signals to produce a baseband sampled stream. The interference mitigation processor produces a second received radio signal that includes reflected radio signals that are transmitted radio signals reflected from a first object. The interference mitigation processor uses the second received radio signal to remove selected samples from the baseband sampled stream that are attributed to radio signals reflected from the first object to produce a modified baseband sampled stream. The receiver uses the modified baseband sampled stream to detect a second object more distant than the first object.Type: ApplicationFiled: April 19, 2017Publication date: October 26, 2017Inventors: Jean P. Bordes, Aria Eshraghi, David S. Trager, Murtaza Ali, Raghunath K. Rao
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Publication number: 20170307729Abstract: A digital FMCW radar is described that simultaneously transmits and receives digitally frequency modulated signals using multiple transmitters and multiple receivers and associated antennas. Several sources of nearby spillover from transmitters to receivers that would otherwise degrade receiver performance are subtracted by a cancellation system in the analog radio frequency domain that adaptively synthesizes an analog subtraction signal based on residual spillover measured by a correlator operating in the receivers' digital signal processing domains and based on knowledge of the transmitted waveforms. The first adaptive cancellation system achieves a sufficient reduction of transmit-receive spillover to avoid receiver saturation or other non-linear effects, but is then added back in to the signal path in the digital domain after analog-to-digital conversion so that spillover cancellation can also operate in the digital signal processing domain to remove deleterious spillover components.Type: ApplicationFiled: April 25, 2017Publication date: October 26, 2017Inventors: Aria Eshraghi, Jean P. Bordes, Curtis Davis, Raghunath K. Rao, Murtaza Ali, Paul W. Dent
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Patent number: 9791551Abstract: A digital FMCW radar is described that simultaneously transmits and receives digitally frequency modulated signals using multiple transmitters and multiple receivers and associated antennas. Several sources of nearby spillover from transmitters to receivers that would otherwise degrade receiver performance are subtracted by a cancellation system in the analog radio frequency domain that adaptively synthesizes an analog subtraction signal based on residual spillover measured by a correlator operating in the receivers' digital signal processing domains and based on knowledge of the transmitted waveforms. The first adaptive cancellation system achieves a sufficient reduction of transmit-receive spillover to avoid receiver saturation or other non-linear effects, but is then added back in to the signal path in the digital domain after analog-to-digital conversion so that spillover cancellation can also operate in the digital signal processing domain to remove deleterious spillover components.Type: GrantFiled: April 25, 2017Date of Patent: October 17, 2017Assignee: UHNDER, INC.Inventors: Aria Eshraghi, Jean P. Bordes, Curtis Davis, Raghunath K. Rao, Murtaza Ali, Paul W. Dent
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Publication number: 20170293025Abstract: 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 the environment, the current information stored in the radar system, and/or external information provided to the radar system. The system allows improved resolution of range, Doppler and/or angle depending on the desired objective.Type: ApplicationFiled: April 25, 2017Publication date: October 12, 2017Inventors: 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: 20170293027Abstract: 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 on a receiver that correlates with a different code is used to mitigate the interference. In another mode, the radar operates as a MIMO radar system utilizing all the antennas at a time. Interference cancellation of the non-ideal cross correlation sidelobes when transmitting in the MIMO mode are employed to remove ghost targets due to unwanted sidelobes.Type: ApplicationFiled: June 26, 2017Publication date: October 12, 2017Inventors: Wayne E. Stark, Jean P. Bordes, Curtis Davis, Raghunath K. Rao, Monier Maher, Manju Hegde, Otto A. Schmid
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Patent number: 9772397Abstract: A radar sensing system for a vehicle includes at least one transmitter, at least one receiver, and a processor. The at least one transmitter is operable to transmit a radio signal at one of a plurality of carrier frequencies. The at least one receiver is operable to receive a radio signal which includes a reflected radio signal that is the transmitted radio signal reflected from an object. The at least one receiver is operable to receive an interfering radio signal transmitted by a transmitter of another radar sensing system. The processor is operable to control the at least one transmitter to selectively transmit radio signals on one of the plurality of carrier frequencies. The processor is further operable to at least one of select a carrier frequency with reduced interference and avoid interference from the other radar sensing system.Type: GrantFiled: January 26, 2017Date of Patent: September 26, 2017Assignee: UHNDER, INC.Inventors: Jean P. Bordes, Curtis Davis, Wayne E. Stark, Otto A. Schmid, Raghunath K. Rao
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Patent number: 9753132Abstract: A radar sensing system for a vehicle includes a transmitter, a receiver, a memory, and a processor. The transmitter transmits a radio signal and the receiver receives a reflected radio signal. The processor samples reflected radio signals during a plurality of time slices. The processor produces samples by correlating reflected radio signals to time-delayed replicas of transmitted radio signals. The processor accumulates the time slices into a first radar data cube and stores the first radar data cube in a memory. The processor combines a portion of the first radar data cube with a portion of a previously stored radar data cube. Based at least in part on the combined portions of the radar data cubes, the processor processes a time series that is a time series of the first radar data cube concatenated with a time series from the previously stored radar data cube.Type: GrantFiled: March 20, 2017Date of Patent: September 5, 2017Assignee: UHNDER, INC.Inventors: Jean P. Bordes, Raghunath K. Rao, Monier Maher
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Patent number: 9753121Abstract: A radar sensing system includes at least one transmitter, at least one receiver and a processor. The at least one transmitter transmits a power shaped RF signal. The transmitted RF signal decreases in power over time. The at least one receiver receives a reflected RF signal. The reflected RF signal is the transmitted RF signal reflected from targets in the environment. The reflected RF signal is down-converted and the result provided to the processor. The processor samples the down-converted reflected RF signal during a plurality of time intervals to produce a sampled stream. The different time intervals of the plurality of time intervals will contain different signal levels of RF signals reflected from the targets. The processor also selects samples in the sampled stream over a selected time interval of the plurality of time intervals that is free of RF signals reflected off of near targets.Type: GrantFiled: October 13, 2016Date of Patent: September 5, 2017Assignee: UHNDER, INC.Inventors: Curtis Davis, Jean P. Bordes, Monier Maher, Wayne Stark, Raghunath K. Rao
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Patent number: 9689967Abstract: 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 on a receiver that correlates with a different code is used to mitigate the interference. In another mode, the radar operates as a MIMO radar system utilizing all the antennas at a time. Interference cancellation of the non-ideal cross correlation sidelobes when transmitting in the MIMO mode are employed to remove ghost targets due to unwanted sidelobes.Type: GrantFiled: April 7, 2017Date of Patent: June 27, 2017Assignee: UHNDER, INC.Inventors: Wayne E. Stark, Jean P. Bordes, Curtis Davis, Raghunath K. Rao, Monier Maher, Manju Hegde, Otto A. Schmid
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Patent number: 9599702Abstract: A radar sensing system for a vehicle includes a transmitter, a receiver, a memory, and a processor. The transmitter transmits a radio signal and the receiver receives a reflected radio signal. The processor samples reflected radio signals during a plurality of time slices. The processor produces samples by correlating reflected radio signals to time-delayed replicas of transmitted radio signals. The processor accumulates the time slices into a first radar data cube and stores the first radar data cube in a memory. The processor combines a portion of the first radar data cube with a portion of a previously stored radar data cube. Based at least in part on the combined portions of the radar data cubes, the processor processes a time series that is a time series of the first radar data cube concatenated with a time series from the previously stored radar data cube.Type: GrantFiled: July 7, 2016Date of Patent: March 21, 2017Assignee: UHNDER, INC.Inventors: Jean P. Bordes, Raghunath K. Rao, Monier Maher