Patents by Inventor Joseph T. Graf
Joseph T. Graf 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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SYSTEM AND METHOD FOR APPLICATION OF DOPPLER NULL SCANNING (DNS) TO POSITION NAVIGATION TIMING (PNT)
Publication number: 20240151800Abstract: A system may include a receiver node. The receiver node may include a communications interface and a controller. The receiver node is time synchronized with a transmitter node to apply Doppler corrections to the receiver node's own motions relative to a common reference frame. The receiver node may be configured to: The receiver node may be configured to: based at least on the receiver node being time synchronized with the transmitter node to apply Doppler corrections and the common reference frame, use Doppler null scanning (DNS) to determine DNS derived information, the DNS derived information including a bearing and the receiver node's relative position relative to the transmitter node; and output a position, navigation, and timing (PNT) solution based at least on the DNS derived information.Type: ApplicationFiled: May 22, 2023Publication date: May 9, 2024Applicant: Rockwell Collins, Inc.Inventors: James A. Stevens, Matthew D. Bousselot, Douglas P. Burch, Tj T. Kwon, William B. Sorsby, Eric J. Loren, Joseph T. Graf -
Patent number: 11916647Abstract: A communications system for line-of-sight (LOS) and beyond-line-of-sight (BLOS) communications using a single aperture includes one or more operators positioned within an environment, wherein each operator includes a common aperture, one or more low-earth orbit satellites communicatively coupled to a plurality of communications sub-systems disposed on the operators. In one embodiment, the communications sub-systems may include a first antenna element to transmit and receive first radio frequency signals along a first directional link via the common aperture. In another embodiment, the communications sub-systems may include a second antenna element to transmit and receive second radio frequency signals along a second directional link via the common aperture.Type: GrantFiled: May 20, 2021Date of Patent: February 27, 2024Assignee: Rockwell Collins, Inc.Inventors: Joseph T. Graf, James A. Stevens
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Publication number: 20230393229Abstract: A system may include a transmitter node and a receiver node. Each node may include a communications interface including at least one antenna element and a controller operatively coupled to the communications interface, the controller including one or more processors, wherein the controller of the receiver node has information of own node velocity and own node orientation. The receiver node may be in motion and the transmitter node may be stationary. Each node may be time synchronized to apply Doppler corrections associated with said node's own motions relative to a common reference frame. The common reference frame may be known to the transmitter node and the receiver node prior to the transmitter node transmitting signals to the receiver node and prior to the receiver node receiving the signals from the transmitter node.Type: ApplicationFiled: August 23, 2023Publication date: December 7, 2023Inventors: Eric J. Loren, William B. Sorsby, Tj T. Kwon, James A. Stevens, Joseph T. Graf, Steven V. Schatz, Matthew D. Bousselot, Philip D. Dean
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Publication number: 20230379007Abstract: A system may include a transmitter node and a receiver node. Each node may include a communications interface including at least one antenna element and a controller operatively coupled to the communications interface, the controller including one or more processors, wherein the controller has information of own node velocity and own node orientation. Each node of the transmitter node and the receiver node may be in motion relative to each other. Each node may be time synchronized to apply Doppler corrections associated with said node's own motions relative to a common reference frame. The common reference frame may be known to the transmitter node and the receiver node prior to the transmitter node transmitting signals to the receiver node and prior to the receiver node receiving the signals from the transmitter node. The receiver node may be configured to be in a state of reduced emissions.Type: ApplicationFiled: September 9, 2022Publication date: November 23, 2023Inventors: Tj T. Kwon, William B. Sorsby, Eric J. Loren, Joseph T. Graf
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Publication number: 20230296716Abstract: A system is disclosed. The system may include a receiver or transmitter node. The receiver or transmitter node may include a communications interface with an antenna element. A controller may include one or more processors and have information of own node velocity and own node orientation relative to a common reference frame. The receiver or transmitter node may be time synchronized to apply Doppler corrections to signals, the Doppler corrections associated with the receiver or transmitter node's own motions relative to the common reference frame, the Doppler corrections applied using Doppler null steering along Null directions. The system may be configured to, via the Doppler null steering, at least one of: track an expendable asset of the system relative to a target; discover a rendezvous node; or identify at least one of a network relay node or a relay location for a network relay node.Type: ApplicationFiled: May 12, 2023Publication date: September 21, 2023Inventors: Philip D. Dean, Eric J. Loren, Joseph T. Graf, Matthew D. Bousselot, Steven V. Schatz, Tj T. Kwon, William B. Sorsby
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Publication number: 20230288518Abstract: A node of a multi-node network (e.g., a transmitter (Tx) node or receiver (Rx) node) is disclosed. The node may include a communications interface with antenna elements and a controller. The controller may include one or more processors and have information of own-node velocity and own-node orientation relative to a common reference frame. The node may be time synchronized to apply Doppler corrections associated with the node’s own motions relative to the common reference frame. The node may receive an input sequence via a zero or near-zero Doppler path from a source node, the input sequence one of a set possible correlation sequence uniquely identifying the source node. The controller includes a correlator with sub-correlator blocks for breaking the input sequence into a set of N sub-sequences. Based on sequence processing by the sub-correlators, the correlator outputs the decoded input sequence and associated delay metrics.Type: ApplicationFiled: May 12, 2023Publication date: September 14, 2023Inventors: Joseph T. Graf, Tj T. Kwon, Eric J. Loren, William B. Sorsby
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Patent number: 11724818Abstract: A system including an aircraft. A phased array may be configured to transmit electromagnetic (EM) energy toward rotor blades and receive EM energy in a direction from the rotor blades. A processor may be configured to: determine or obtain rotor blade information; determine or obtain aircraft information; based on the rotor blade information and the aircraft information, determine (a) a time to transmit EM energy or receive EM energy and (b) an angle to transmit EM energy or receive EM energy; and based on the rotor blade information and the aircraft information, control the phased array to adjust a beam pointing angle and to transmit EM energy for a duration at the beam pointing angle. The phased array may be configured to transmit EM energy for the duration at the beam pointing angle, wherein the transmitted EM energy is configured to reflect off a rotor blade toward a target.Type: GrantFiled: September 21, 2020Date of Patent: August 15, 2023Assignee: Rockwell Collins, Inc.Inventors: Jonathan A. Lovseth, Joseph T. Graf
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Patent number: 11539118Abstract: A system of high-frequency (HF) antennas is disposed on various aircraft body panels. The antennas are configured for orthogonal polarization such that NVIS may be operable no matter the state of the ionosphere. The antennas are disposed on substantially perpendicular body panels so that, when operated in concert, the resulting signals have opposite polarization and at least one signal will bounce off the ionosphere.Type: GrantFiled: January 27, 2021Date of Patent: December 27, 2022Assignee: Rockwell Collins, Inc.Inventors: Joseph T. Graf, James B. West
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Publication number: 20220376775Abstract: A communications system for line-of-sight (LOS) and beyond-line-of-sight (BLOS) communications using a single aperture includes one or more operators positioned within an environment, wherein each operator includes a common aperture, one or more low-earth orbit satellites communicatively coupled to a plurality of communications sub-systems disposed on the operators. In one embodiment, the communications sub-systems may include a first antenna element to transmit and receive first radio frequency signals along a first directional link via the common aperture. In another embodiment, the communications sub-systems may include a second antenna element to transmit and receive second radio frequency signals along a second directional link via the common aperture.Type: ApplicationFiled: May 20, 2021Publication date: November 24, 2022Inventors: Joseph T. Graf, James A. Stevens
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Patent number: 11456537Abstract: A system of spiral antennas is incorporated into aircraft body panels. The spiral antennas may be slot or printed material antennas, cavity backed for unidirectional communication, or open for bi-directional communication. The spiral antennas are operated in concert as a steerable array. The spiral antennas are utilized for various signal functions including ultra-wideband communications and electronic support measures interferometry.Type: GrantFiled: January 27, 2021Date of Patent: September 27, 2022Assignee: Rockwell Collins, Inc.Inventors: Joseph T. Graf, James B. West
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Publication number: 20220238986Abstract: A system of high-frequency (HF) antennas is disposed on various aircraft body panels. The antennas are configured for orthogonal polarization such that NVIS may be operable no matter the state of the ionosphere. The antennas are disposed on substantially perpendicular body panels so that, when operated in concert, the resulting signals have opposite polarization and at least one signal will bounce off the ionosphere.Type: ApplicationFiled: January 27, 2021Publication date: July 28, 2022Applicant: Rockwell Collins, Inc.Inventors: Joseph T. Graf, James B. West
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Patent number: 11367961Abstract: A system of spiral antennas is incorporated into aircraft body panels. The spiral antennas may be slot or printed material antennas, cavity backed for unidirectional communication, or open for bi-directional communication. The spiral antennas are operated in concert as a steerable array. The spiral antennas are utilized for various signal functions including ultra-wideband communications and electronic support measures interferometry.Type: GrantFiled: January 27, 2021Date of Patent: June 21, 2022Assignee: Rockwell Collins, Inc.Inventors: Joseph T. Graf, James B. West
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Patent number: 11336007Abstract: A system of antennas, each having disparity operating frequencies, are incorporated into the same aircraft body panels. HF antennas define loops with large internal areas; additional higher frequency antennas are disposed within that large internal area. The higher frequency antennas are sufficiently different so as to prevent coupling. Antennas operating in the same frequency range, disposed on different parallel surfaces are operated in concert as a steerable array.Type: GrantFiled: January 8, 2021Date of Patent: May 17, 2022Assignee: Rockwell Collins, Inc.Inventors: Joseph T. Graf, James B. West
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Patent number: 11325690Abstract: Disclosed are embodiments of exterior aircraft assemblies integrating compatible elements. In one example, an integrated aircraft assembly includes an aerodynamic housing attachable to an aircraft, an antenna system including at least one antenna element housed within the aerodynamic housing, and a lighting system including at least one light fixture housed within the aerodynamic housing. The at least one antenna element and the at least one light fixture may be co-located within then housing or mounted separately on the housing.Type: GrantFiled: October 19, 2020Date of Patent: May 10, 2022Assignee: Rockwell Collins, Inc.Inventors: Joseph T. Graf, James B. West
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Publication number: 20220119091Abstract: Disclosed are embodiments of exterior aircraft assemblies integrating compatible elements. In one example, an integrated aircraft assembly includes an aerodynamic housing attachable to an aircraft, an antenna system including at least one antenna element housed within the aerodynamic housing, and a lighting system including at least one light fixture housed within the aerodynamic housing. The at least one antenna element and the at least one light fixture may be co-located within then housing or mounted separately on the housing.Type: ApplicationFiled: October 19, 2020Publication date: April 21, 2022Applicant: Rockwell Collins, Inc.Inventors: Joseph T. Graf, James B. West
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Publication number: 20220108207Abstract: A communication system is enclosed. The communication system includes a communication sub-system configured to transmit and receive signals from one or more waveforms of a plurality of waveforms. The communication sub-system further contains one or more processors and memory with instructions that include receiving an artificial intelligence input configured to instruct the one or more processors to prepare an instantiation of a selected waveform. The instructions further include preparing the communication sub-system to transmit, receive, and instantiate the selected waveform. The communication system further includes an artificial intelligence engine in communication with the one or more processors configured to: receive operational data from one or more operation systems; determine, based on the operational data, the selected waveform; prepare the artificial intelligence input based on the selected waveform; and send the artificial intelligence input to the one or more processors.Type: ApplicationFiled: October 2, 2020Publication date: April 7, 2022Inventors: Joseph T. Graf, Jeffrey D. Bouis, Matthew D. Bousselot
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Publication number: 20220089292Abstract: A system including an aircraft. A phased array may be configured to transmit electromagnetic (EM) energy toward rotor blades and receive EM energy in a direction from the rotor blades. A processor may be configured to: determine or obtain rotor blade information; determine or obtain aircraft information; based on the rotor blade information and the aircraft information, determine (a) a time to transmit EM energy or receive EM energy and (b) an angle to transmit EM energy or receive EM energy; and based on the rotor blade information and the aircraft information, control the phased array to adjust a beam pointing angle and to transmit EM energy for a duration at the beam pointing angle. The phased array may be configured to transmit EM energy for the duration at the beam pointing angle, wherein the transmitted EM energy is configured to reflect off a rotor blade toward a target.Type: ApplicationFiled: September 21, 2020Publication date: March 24, 2022Inventors: Jonathan A. Lovseth, Joseph T. Graf
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Patent number: 11258167Abstract: A mobile platform communication system includes one or more HF antennas disposed in the surface of the mobile platform. The HF antenna may comprise one or more mesh screens. Alternatively, or in addition, the HF antennas may comprise characteristic mode transducers to excite metallic features on the mobile platform skin. The mobile platform skin includes a lightning strike protection layer that is disposed within the mobile platform skin around in internal surface of the antenna such that the antenna does not distend the mobile platform skin and increase drag.Type: GrantFiled: September 1, 2020Date of Patent: February 22, 2022Assignee: Rockwell Collins, Inc.Inventors: Joseph T. Graf, James B. West
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Patent number: 10931570Abstract: In embodiments, a communication node of a multi-node communication network includes a communication interface and a controller communicatively coupled to the communication interface.Type: GrantFiled: August 12, 2019Date of Patent: February 23, 2021Assignee: Rockwell Collins, Inc.Inventors: Tj T. Kwon, Justin W. Ehm, Anthony D. Schaefer, Wayne H. Meyer, Joseph T. Graf
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Patent number: 7894552Abstract: The present invention is directed to a quick, low-distortion and efficient reduction in sample rate requiring minimal logic. An IF signal is passed into an analog-to-digital converter. The converted signal is mixed with the combination of an in-phase and a quadrature component. The mixed signal is then split into an in-phase signal and a quadrature signal. The quadrature signal is interpolated to form a new signal aligned in time to the in-phase signal. Alternatively, the in-phase signal is interpolated to form a new signal aligned in time to the quadrature signal. The interpolation may comprise linear interpolation or parabolic interpolation. The simplified signal processing reduces the sample rate of the signal and the interpolation reduces aliasing introduced by the simplification. One advantage of this approach is that only half of the signal needs to be processed.Type: GrantFiled: July 16, 2007Date of Patent: February 22, 2011Assignee: Rockwell Collins, Inc.Inventor: Joseph T. Graf