Patents by Inventor James A. Stevens

James A. Stevens 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).

  • Patent number: 12287418
    Abstract: 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. 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: Grant
    Filed: July 5, 2022
    Date of Patent: April 29, 2025
    Assignee: Rockwell Collins, Inc.
    Inventors: Eric J. Loren, William B. Sorsby, Tj T. Kwon, James A. Stevens
  • Publication number: 20250119730
    Abstract: A node of a network communicating via mobile ad hoc network (MANET) waveforms and incorporating internet protocol (IP) security (IPSec) measures includes a plaintext (PT) user system or host, ciphertext (CT) communications module including a radio system for transmission and reception via MANET waveforms, IPSec cryptographic units, and PT and CT convergence modules. IPSec units provide encryption and decryption of data traffic as well as cross-layer exchange between PT and CT convergence modules. PT convergence modules map output traffic and decrypted input traffic to CT capabilities and exchange reachability information (e.g., addresses of reachable nodes or systems) with counterpart PT convergence modules of peer nodes of the MANET. CT convergence modules converge encrypted input and output traffic based on CT capabilities.
    Type: Application
    Filed: October 4, 2024
    Publication date: April 10, 2025
    Inventor: James A. Stevens
  • Patent number: 12231330
    Abstract: 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: Grant
    Filed: August 23, 2023
    Date of Patent: February 18, 2025
    Assignee: Rockwell Collins, Inc.
    Inventors: Eric J. Loren, William B. Sorsby, Tj T. Kwon, James A. Stevens, Joseph T. Graf, Steven V. Schatz, Matthew D. Bousselot, Philip D. Dean
  • Publication number: 20250030163
    Abstract: A system may include a circular parasitic array (CPA) assembly including: a first CPA configured to at least one of transmit or receive; and a second CPA configured to at least one of transmit or receive; wherein the first CPA is configured to one of transmit or receive over a first bandwidth while the second CPA is configured to another of transmit or receive over the first bandwidth or a second bandwidth, wherein the first CPA and the second CPA are physically separated by a distance so as to provide on-frequency isolation.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 23, 2025
    Inventors: James B. West, Zackery M. Hamilton, Jiwon L Moran, James A. Stevens, Joseph T. Graf
  • Patent number: 12153150
    Abstract: A system is disclosed for Doppler nulling configured for security. The system may include a receiver or transmitter node. The receiver or transmitter node may include a communications interface with an antenna element 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 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 based on a protocol. The protocol may include a protocol modulation, such as a modulation of the signals for security purposes.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: November 26, 2024
    Assignee: Rockwell Collins, Inc.
    Inventors: James A. Stevens, Eric J. Loren, William B. Sorsby, Tj T. Kwon
  • Patent number: 12120530
    Abstract: A communication system is described. The communication system includes 5g base stations (gNodeB) which are communicatively coupled to a user equipment (UE) by a multiple radio access technology (multi-RAT) dual connectivity. A first of the gNodeBs is a master gNodeB which relays control signaling from a 5G network core to a secondary gNodeB. To avoid spectral interference of the control signals between the master gNodeB and the secondary gNodeB, the control signals are transmitted according to a tactical waveform protocol selected from the Department of Defense (DoD) Communication Waveform Inventory (2020), such as a common data link (CDL) protocol.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: October 15, 2024
    Assignee: Rockwell Collins, Inc.
    Inventors: John V. Thommana, James A. Stevens
  • Patent number: 12120651
    Abstract: A method and system for operating an ad hoc communication network under suboptimal commercial global navigation satellite system (GNSS) conditions and a loss of a base station communication link is disclosed. The method includes configuring the ad hoc communication network to operation in in-band or out-of-band mode, allowing device-to-device D2D communication. The method further includes configuring the ad hoc communication system to operate in overlay mode, sharing communication resources between network-controlled resources and D2D resources. The method further includes configuring the D2D resources with a base station precedent to the loss of the base station communication link and enabling the ad hoc communication network to operate in frequency hopping mode. The method further includes disabling physical sidelink control channel synchronization and/or resource management within the ad hoc communication network.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: October 15, 2024
    Assignee: Rockwell Collins, Inc.
    Inventors: John V. Thommana, James A. Stevens
  • Patent number: 12111406
    Abstract: A system includes a transmitter node and a receiver node. Each node of the transmitter node and the receiver node are time synchronized to apply Doppler corrections associated with said node's own motions relative to a stationary common inertial reference frame. The stationary common inertial reference frame is known to the transmitter node and the receiver node prior to the transmitter node transmitting a plurality of signals to the receiver node and prior to the receiver node receiving the plurality of signals from the transmitter node. The receiver node performs adaptive digitization of the signals to account for a speed of the platform.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: October 8, 2024
    Assignee: Rockwell Collins, Inc.
    Inventors: William B. Sorsby, Eric J. Loren, Tj T. Kwon, James A. Stevens
  • Patent number: 12050279
    Abstract: A system includes at least a transmitting (Tx) and receiving (Rx) node of a non-terrestrial network (NTN) including one or more non-terrestrial nodes (e.g., operating in earth orbit or extra-terrestrial space). Each node may include a communications interface with antenna elements and a controller, which may include one or more processors and have information of own-node velocity and own-node orientation relative to a common reference frame. Each node may be time synchronized to apply Doppler corrections associated with the node's own motions relative to the common reference frame. Based on the Doppler corrections, each node may determine a relative bearing to the other node. The non-terrestrial node is configured for operation on a non-terrestrial platform (e.g., a satellite in earth orbit), which may be an extra-terrestrial platform operating in spaceflight beyond the earth's atmosphere or in association with a non-Earth solar system object.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: July 30, 2024
    Assignee: Rockwell Collins, Inc.
    Inventors: James A. Stevens, Naveen Rajanikantha, Eric J. Loren, William B. Sorsby, Tj T. Kwon
  • Publication number: 20240227105
    Abstract: A safety system for a power miter saw comprises a support member, at least one multidirectional manipulator including a workpiece holder member moveably mounted to the support member for securing a workpiece in place, and a control box. The workpiece holder member includes a presence indicator operatively connected to the control box and configured to detect the physical presence of a saw operator's hand on the at least one multidirectional manipulator when the saw operator's hand engages the presence indicator. The control box is operatively connectable to a trigger switch of the power miter saw so that an electric motor of the power miter saw is activated only when both the presence indicator of the safety system and the trigger switch of the power miter saw are engaged by both hands of an operator of the power miter saw.
    Type: Application
    Filed: March 21, 2024
    Publication date: July 11, 2024
    Inventors: James A. Stevens, Frank Wilhelm, Kohl L. Knopp, Robert Woods, Kurian A. Anthraper
  • Publication number: 20240168120
    Abstract: A system is disclosed for Doppler nulling configured for security. The system may include a receiver or transmitter node. The receiver or transmitter node may include a communications interface with an antenna element 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 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 based on a protocol. The protocol may include a protocol modulation, such as a modulation of the signals for security purposes.
    Type: Application
    Filed: May 19, 2023
    Publication date: May 23, 2024
    Inventors: James A. Stevens, Eric J. Loren, William B. Sorsby, Tj T. Kwon
  • Publication number: 20240151800
    Abstract: 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: Application
    Filed: May 22, 2023
    Publication date: May 9, 2024
    Applicant: 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: 11977173
    Abstract: 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 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 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 receiver node is configured to determine a parameter of the signals and an authenticity of the signals based on the parameter.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: May 7, 2024
    Assignee: Rockwell Collins, Inc.
    Inventors: Eric J. Loren, Tj T. Kwon, James A. Stevens, William B. Sorsby
  • Patent number: 11958152
    Abstract: A safety system for a power miter saw comprises a support member, at least one multidirectional manipulator including a workpiece holder member moveably mounted to the support member for securing a workpiece in place, and a control box. The workpiece holder member includes a presence indicator operatively connected to the control box and configured to detect the physical presence of a saw operator's hand on the at least one multidirectional manipulator when the saw operator's hand engages the presence indicator. The control box is operatively connectable to a trigger switch of the power miter saw so that an electric motor of the power miter saw is activated only when both the presence indicator of the safety system and the trigger switch of the power miter saw are engaged by both hands of an operator of the power miter saw.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: April 16, 2024
    Assignee: MASONITE CORPORATION
    Inventors: James A. Stevens, Frank Wilhelm, Kohl L. Knopp, Robert Woods, Kurian A. Anthraper
  • Patent number: 11916647
    Abstract: 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: Grant
    Filed: May 20, 2021
    Date of Patent: February 27, 2024
    Assignee: Rockwell Collins, Inc.
    Inventors: Joseph T. Graf, James A. Stevens
  • Patent number: 11889399
    Abstract: A communication system is disclosed. The communication system includes a first core network that is mobile, and a radio access network, which includes a first central unit and one or more distributed units. The first central unit includes a first router containing a multi-level security guard configured to route user plane data and control plane data to the first core network. The first central unit further includes a transceiver, a control plane interface coupled to the core network, and a second router configured to communicate user plane data and control plane data to one or more first distributed units. The central unit configures at least one network function of radio resource control (RRC). The one or more distributed units configures at least one network function of packet data convergence protocol (PDCP), radio link control (RLC), medium access control (MAC), and physical link (PHY) network functions.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: January 30, 2024
    Assignee: Rockwell Collins, Inc.
    Inventors: John V. Thommana, James A. Stevens
  • Publication number: 20240019520
    Abstract: 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 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 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 receiver node is configured to determine a parameter of the signals and an authenticity of the signals based on the parameter.
    Type: Application
    Filed: May 19, 2023
    Publication date: January 18, 2024
    Inventors: Eric J. Loren, Tj T. Kwon, James A. Stevens, William B. Sorsby
  • Publication number: 20230393229
    Abstract: 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: Application
    Filed: August 23, 2023
    Publication date: December 7, 2023
    Inventors: Eric J. Loren, William B. Sorsby, Tj T. Kwon, James A. Stevens, Joseph T. Graf, Steven V. Schatz, Matthew D. Bousselot, Philip D. Dean
  • Publication number: 20230379008
    Abstract: A system is disclosed. The system may include a receiver or transmitter node. The receiver or transmitter node may include a communications interface with a directional antenna element 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 receiver or transmitter node may be time synchronized to apply Doppler corrections associated with the receiver or transmitter node's own motions relative to the common reference frame. The common reference frame may be known to the receiver or transmitter node prior to the receiver node or transmitter receiving signals from a source.
    Type: Application
    Filed: April 3, 2023
    Publication date: November 23, 2023
    Inventors: William B. Sorsby, Eric J. Loren, Tj T. Kwon, James A. Stevens
  • Publication number: 20230333193
    Abstract: A system includes a transmitter node and a receiver node. Each node of the transmitter node and the receiver node are time synchronized to apply Doppler corrections associated with said node’s own motions relative to a stationary common inertial reference frame. The stationary common inertial reference frame is known to the transmitter node and the receiver node prior to the transmitter node transmitting a plurality of packets to the receiver node and prior to the receiver node receiving the plurality of packets from the transmitter node. The plurality of packets each comprise at least a preamble and a body payload. The body payload comprises a plurality of symbols. The plurality of symbols are separated into a plurality of blocks. The plurality of blocks are scanned at separate null directions.
    Type: Application
    Filed: May 12, 2023
    Publication date: October 19, 2023
    Inventors: Eric J. Loren, William B. Sorsby, James A. Stevens, Tj T. Kwon