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    Verifiable computation for cross-domain information sharing
    2.
    发明授权
    Verifiable computation for cross-domain information sharing 有权

    公开(公告)号：US12058265B2

    公开(公告)日：2024-08-06

    申请号：US18138399

    申请日：2023-04-24

    申请人： Raytheon BBN Technologies Corp.

    发明人： Joud Khoury ,  Michael Hassan Atighetchi ,  Zachary Ratliff ,  Katarzyna Lucja Olejnik

    IPC分类号： H04L9/32

    CPC分类号： H04L9/3218

    摘要： Techniques for verifiable computation for cross-domain information sharing are disclosed. An untrusted node in a distributed cross-domain solution (CDS) system is configured to: receive a first data item and a first cryptographic proof associated with the first data item; perform a computation on the first data item including one or more of filtering, sanitizing, or validating the first data item, to obtain a second data item; generate, using a proof-carrying data (PCD) computation, a second cryptographic proof that indicates (a) validity of the first cryptographic proof and (b) integrity of the first computation on the first data item; and transmits the second data item and the second cryptographic proof to a recipient node in the distributed CDS system. Alternatively or additionally, the untrusted node may be configured to transmit a cryptographic proof to a trusted aggregator in the CDS system.

    POSE-DRIVEN POSITION AND NAVIGATION
    3.
    发明公开
    POSE-DRIVEN POSITION AND NAVIGATION 审中-公开

    公开(公告)号：US20240230334A9

    公开(公告)日：2024-07-11

    申请号：US18379546

    申请日：2023-10-12

    申请人： RAYTHEON BBN TECHNOLOGIES CORP.

    发明人： Scott E. Ritter ,  Michael J. Nicoletti

    IPC分类号： G01C21/00

    CPC分类号： G01C21/005

    摘要： Method and body garment for pose-driven determination of a location of a body include: selecting a predetermined location of the body; determining a mode of locomotion of the body as the body moves; inferring the movement of the body and direction of the movement over a time period by combining physiological information of the body with calibration data; calculating a path travelled by the body from the predetermined location; capturing spatial environment of the body and its features, and a current location of the body within the spatial environment, by performing simultaneous localization and mapping (SLAM) on the path travelled by the body; and calculating navigation information of the body without using a location determining device.

    IMPROVED SIMULTANEOUS TRANSMIT SIGNALS AND RECEIVE SIGNALS
    4.
    发明公开
    IMPROVED SIMULTANEOUS TRANSMIT SIGNALS AND RECEIVE SIGNALS 审中-公开

    公开(公告)号：US20240205047A1

    公开(公告)日：2024-06-20

    申请号：US18506803

    申请日：2023-11-10

    申请人： RAYTHEON BBN TECHNOLOGIES CORP.

    发明人： Neil Judell

    IPC分类号： H04L12/44 ,  H04L5/00

    CPC分类号： H04L12/44 ,  H04L5/0007

    摘要： Simultaneous transmit signals and receive signals (STAR) circuit and method includes: an error correction circuit for receiving a receive signal and a transmit signal; a first input port for receiving a probe signal; a second input port for receiving a transmit signal for transmission; a third input port for receiving a modification signal; and a first adder to add the probe signal to the modification signal to generate a modified probe signal, wherein the modified probe signal is input to the error correction circuit, wherein the modification signal modifies the probe signal to be orthogonal to the transmit signal and to minimize expected correlation with the receive signal to generate a final transmit signal.

    Photonic integrated circuit (PIC) radio frequency I/Q signal correlator
    7.
    发明授权
    Photonic integrated circuit (PIC) radio frequency I/Q signal correlator 有权

    公开(公告)号：US11909442B2

    公开(公告)日：2024-02-20

    申请号：US17843993

    申请日：2022-06-18

    申请人： Raytheon BBN Technologies, Corp.

    发明人： Moe D. Soltani ,  Ken Dinndorf

    IPC分类号： H04B10/00 ,  H04B10/2563 ,  G01S13/44

    CPC分类号： H04B10/2563 ,  G01S13/4409 ,  H04B2210/006

    摘要： A technology is described for a Photonic Integrated Circuit (PIC) radio frequency (RF) in-phase quadrature phase (I/O) correlator. The PIC RF Correlator can comprise two optical waveguides to receive first and second optical signals that are modulated by first and second RF signals, respectively. Two 1 to M optical splitters can split the first and second RF modulated optical signals. Optical delay lines can delay the M split first RF modulated optical signals. M optical balanced couplers can receive and combine the M first delayed RF modulated optical signals with the M split second RF modulated optical signals. Balanced photodetectors can output a differential integration on the first and second combined RF modulated optical signals for in-phase and quadrature phase signals. A processor can add the outputs of the M optical balanced photodetectors to form a frequency domain correlated signal of the first and second RF signals with real and imaginary parts.

    Photonic Integrated Circuit (PIC) Radio Frequency I/Q Signal Correlator
    8.
    发明公开
    Photonic Integrated Circuit (PIC) Radio Frequency I/Q Signal Correlator 审中-公开

    公开(公告)号：US20230412271A1

    公开(公告)日：2023-12-21

    申请号：US17843993

    申请日：2022-06-18

    申请人： Raytheon BBN Technologies, Corp.

    发明人： Moe D. Soltani ,  Ken Dinndorf

    IPC分类号： H04B10/2563 ,  G01S13/44

    CPC分类号： H04B10/2563 ,  G01S13/4409 ,  H04B2210/006

    摘要： A technology is described for a Photonic Integrated Circuit (PIC) radio frequency (RF) in-phase quadrature phase (I/Q) correlator. The PIC RF Correlator can comprise two optical waveguides to receive first and second optical signals that are modulated by first and second RF signals, respectively. Two 1 to M optical splitters can split the first and second RF modulated optical signals. Optical delay lines can delay the M split first RF modulated optical signals. M optical balanced couplers can receive and combine the M first delayed RF modulated optical signals with the M split second RF modulated optical signals. Balanced photodetectors can output a differential integration on the first and second combined RF modulated optical signals for in-phase and quadrature phase signals. A processor can add the outputs of the M optical balanced photodetectors to form a frequency domain correlated signal of the first and second RF signals with real and imaginary parts.