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    SYSTEM AND METHOD FOR CANCELLING STRONG SIGNALS FROM COMBINED WEAK AND STRONG SIGNALS IN COMMUNICATIONS SYSTEMS
    41.
    发明申请
    SYSTEM AND METHOD FOR CANCELLING STRONG SIGNALS FROM COMBINED WEAK AND STRONG SIGNALS IN COMMUNICATIONS SYSTEMS 审中-公开

    公开(公告)号：WO2021007173A1

    公开(公告)日：2021-01-14

    申请号：PCT/US2020/040922

    申请日：2020-07-06

    Applicant: RAYTHEON BBN TECHNOLOGIES CORP.

    Inventor： JUDELL, Neil

    IPC: H04B1/10

    Abstract: A receiver for cancelling strong signals from combined weak and strong signals includes: a first circuitry for inputting a weak and strong signal as an input; a parametric cancellation circuit for inputting a representation of the strong signal and an output of the first circuitry to produce a cancellation signal; a second circuitry electrically coupled to the parametric cancellation circuit for inputting the cancellation signal to produce a modulated output; a demodulator electronically coupled to the second circuitry for demodulating the modulated output to produce a demodulated output and an error signal, where the demodulated output is the data contained in the weak signal; and an adaptation logic circuit for inputting the representation of the strong signal, the demodulated output and the error signal to adaptively produce parameters for the parametric cancellation circuit. The parametric cancellation circuit further inputs the error signal and the parameters to produce the cancellation signal.

    RECONFIGURABLE APERTURE FOR MICROWAVE TRANSMISSION AND DETECTION
    44.
    发明申请
    RECONFIGURABLE APERTURE FOR MICROWAVE TRANSMISSION AND DETECTION 审中-公开
    用于微波传输和检测的可重新安装的孔

    公开(公告)号：WO2015047500A1

    公开(公告)日：2015-04-02

    申请号：PCT/US2014/044092

    申请日：2014-06-25

    Applicant: RAYTHEON BBN TECHNOLOGIES CORP.

    Inventor： CASCIATO, Mark D. ,  REBHOLZ, Matthew John ,  SWARTZ, Justin Wales

    IPC: H01Q3/44 ,  H01Q15/02 ,  H01Q19/06 ,  G01S7/03

    CPC classification number: H01Q3/44 ,  G01S7/03 ,  G02B5/1876 ,  G02B27/44 ,  H01Q3/20 ,  H01Q15/02 ,  H01Q19/065

    Abstract: A reconfigurable aperture (200) includes a plurality of metallic particles (220) confined to a volume (216) extending across an aperture area. The metallic particles are repositioned within the volume to form opaque regions in the aperture area. The opaque regions, and transmissive regions between the opaque regions, can form a reconfigurable zone plate that can change the collimation of a microwave beam via diffraction therethrough. The zone plate can be located a fixed distance away from a microwave source and a detector in a housing, so that for any specified wavelength produced by the microwave source, the zone plate can reconfigure to have a focal length equal to the fixed distance. The reconfigurable zone plate can effectively collimate microwaves produced by the microwave source, can direct the collimated microwaves in a specified direction, can receive microwaves returning along the specified direction, and can focus the received microwaves onto the detector.

    Abstract translation: 可重新配置的孔（200）包括限制在横过孔区延伸的体积（216）的多个金属颗粒（220）。 金属颗粒在体积内重新定位，以在开口区域中形成不透明区域。 不透明区域和不透明区域之间的透射区域可以形成可重构区域板，其可以通过衍射从而改变微波束的准直。 区域板可以距离微波源和壳体中的检测器固定的距离，使得对于由微波源产生的任何指定波长，区域板可以重新配置为具有等于固定距离的焦距。 可重构区域板可以有效地准直由微波源产生的微波，可以在指定方向上引导准直的微波，可以接收沿指定方向返回的微波，并可将接收到的微波聚焦到检测器上。

    SYSTEMS AND METHODS FOR DETECTING SHOOTER LOCATIONS FROM AN AIRCRAFT
    45.
    发明申请
    SYSTEMS AND METHODS FOR DETECTING SHOOTER LOCATIONS FROM AN AIRCRAFT 审中-公开
    用于从飞机检测发射机位置的系统和方法

    公开(公告)号：WO2010030433A3

    公开(公告)日：2014-10-16

    申请号：PCT/US2009050814

    申请日：2009-07-16

    Applicant: RAYTHEON BBN TECHNOLOGIES CORP ,  BARGER JAMES E ,  RITTER SCOTT E

    Inventor： BARGER JAMES E ,  RITTER SCOTT E

    IPC: F41G3/14 ,  G01S3/808

    CPC classification number: G01S3/8086 ,  F41G3/147 ,  G01S3/801

    Abstract: The systems and methods described herein relate to an airborne shooter detection system having a plurality of sensors coupled to the body of an aircraft such as a helicopter. The system includes at least five sensors configured and arranged to disambiguate the location of a shooter. By measuring the arrival times of the Shockwaves of projectiles at each of the sensors and determining the differences in the arrival times among sensors, the systems and methods may determine the location of one or more sources of the projectiles. A distance of at least ten meters separates two or more of the sensors. Such a separation is advantageous because it allows the system to disambiguate multiple shooters by resolving the curvature of the Shockwave.

    Abstract translation: 本文所述的系统和方法涉及具有耦合到诸如直升机的飞行器的主体的多个传感器的机载射手检测系统。 该系统包括配置和布置成消除射手位置的至少五个传感器。 通过测量每个传感器上的射弹冲击的到达时间并确定传感器之间的到达时间的差异，系统和方法可以确定一个或多个射弹源的位置。 距离至少十米的两个或更多个传感器。 这种分离是有利的，因为它允许系统通过解决冲击波的曲率来消除多个射手的歧义。

    NON-CONTIGUOUS SPECTRAL-BAND MODULATOR AND METHOD FOR NON-CONTIGUOUS SPECTRAL-BAND MODULATION
    47.
    发明申请
    NON-CONTIGUOUS SPECTRAL-BAND MODULATOR AND METHOD FOR NON-CONTIGUOUS SPECTRAL-BAND MODULATION 审中-公开
    非连续光谱调制器的非连续光谱调制器和非连续光谱调制方法

    公开(公告)号：WO2013101342A1

    公开(公告)日：2013-07-04

    申请号：PCT/US2012/064307

    申请日：2012-11-09

    Applicant: RAYTHEON BBN TECHNOLOGIES CORP.

    Inventor： GEILE, Michael Joseph

    IPC: H04L27/20 ,  H04L5/00

    CPC classification number: H04L27/2053 ,  H04L5/0041 ,  H04L27/2017

    Abstract: Embodiments of a non-contiguous spectral-band modulator and method for non-contiguous spectral-band modulation are generally described herein. In some embodiments, an input symbol tuple may be mapped to a sequence of values. Each value of the sequence may represent an instantaneous frequency of a waveform for a signal with a power spectral density that is substantially constrained to the two or more subbands of a non-contiguous spectrum. The values of the se¬ quence of instantaneous frequency values may be accumulated and a phase-sample sequence representing phase samples of a transmit waveform may be generated. An exponentiation may be performed on the phase-sample sequence to generate a constant modulus signal sequence. An output signal sequence is generated that is constrained to a region in the complex plane, such as an annulus, when the signal is in a subband. The output signal sequence may be shaped to con¬ strain spectral energy during transitions between subbands.

    Abstract translation: 非连续光谱带调制器的实施例和用于非连续光谱带调制的方法在本文中通常被描述。 在一些实施例中，输入符号元组可被映射到一系列值。 序列的每个值可以表示具有基本上限制于非连续光谱的两个或多个子带的功率谱密度的信号的波形的瞬时频率。 可以累积瞬时频率值的数量的值，并且可以生成表示发送波形的相位样本的相位采样序列。 可以对相位采样序列进行取幂以产生恒模信号序列。 当信号处于子带中时，生成被限制到复平面中的区域（例如环形）的输出信号序列。 输出信号序列可以被成形为在子带之间的转换期间结合频谱能量。

    SYSTEM AND METHOD FOR DETECTING INFECTIOUS WEB CONTENT
    48.
    发明申请
    SYSTEM AND METHOD FOR DETECTING INFECTIOUS WEB CONTENT 审中-公开
    用于检测感染性WEB内容的系统和方法

    公开(公告)号：WO2012148517A1

    公开(公告)日：2012-11-01

    申请号：PCT/US2012/023304

    申请日：2012-01-31

    Applicant: RAYTHEON BBN TECHNOLOGIES CORP. ,  RUBIN, Jonathan, A. ,  LOWRY, John, H.

    Inventor： RUBIN, Jonathan, A. ,  LOWRY, John, H.

    IPC: H04L29/06 ,  G06F21/00

    CPC classification number: H04L63/1416 ,  G06F21/552 ,  G06F21/566 ,  G06F2221/2101 ,  G06F2221/2119 ,  G06F2221/2143

    Abstract: Systems and methods are disclosed herein for detecting a threat to a computing device (102). The system includes a server (106) and a computing device (102) in communication with the server (106) and configured to browse the Internet (104). The server (106) receives data indicating a configuration parameter of the computing device (102) and executes an emulation of the computing device (102) that replicates the configuration parameter. The server (106) also receives data relating to the computing device's browsing behavior and replicates the browsing behavior on the emulation. Upon detecting an undesired modification to the emulation of the computing device (102) caused by the replicated browsing behavior, the server (106) automatically generates and outputs an alert related to the undesired modification and related browsing behavior.

    Abstract translation: 本文公开了用于检测对计算设备（102）的威胁的系统和方法。 该系统包括与服务器（106）通信并被配置为浏览因特网（104）的服务器（106）和计算设备（102）。 服务器（106）接收指示计算设备（102）的配置参数的数据，并执行复制配置参数的计算设备（102）的仿真。 服务器（106）还接收与计算设备的浏览行为有关的数据，并在仿真上复制浏览行为。 在检测到由复制的浏览行为引起的对计算设备（102）的仿真的不期望的修改时，服务器（106）自动生成并输出与不期望的修改和相关浏览行为相关的警报。

    HOLEVO CAPACITY ACHIEVING JOINT DETECTION RECEIVER
    49.
    发明申请
    HOLEVO CAPACITY ACHIEVING JOINT DETECTION RECEIVER 审中-公开
    实现联合检测接收器的孔隙能力

    公开(公告)号：WO2012094103A1

    公开(公告)日：2012-07-12

    申请号：PCT/US2011/064401

    申请日：2011-12-12

    Applicant: RAYTHEON BBN TECHNOLOGIES CORP. ,  GUHA, Saikat

    Inventor： GUHA, Saikat

    IPC: H04B10/30

    CPC classification number: H04L27/223 ,  H03M13/05 ,  H04B10/1121 ,  H04B10/70

    Abstract: An optical receiver may include a unitary transformation operator to receive an n-symbol optical codeword associated with a codebook, and to perform a unitary transformation on the received optical codeword to generate a transformed optical codeword, where the unitary transformation is based on the codebook. The optical receiver may further include n optical detectors, where a particular one of the n optical detectors is to detect a particular optical symbol of the transformed optical codeword, and to determine whether the particular optical symbol corresponds to a first optical symbol or a second optical symbol. The optical receiver may also include a decoder to construct a codeword based on the determinations, and to decode the constructed codeword into a message using the codebook. The optical receiver may attain superadditive capacity, and, with an optimal code, may attain the Holevo limit to reliable communication data rates.

    Abstract translation: 光接收机可以包括用于接收与码本相关联的n符号光码字的单一变换算子，并且对所接收的光码字进行单位变换以产生变换的光码字，其中单位变换基于码本。 光学接收机还可以包括n个光学检测器，其中n个光学检测器中的特定的一个检测器将检测经变换的光学码字的特定光学符号，并且确定特定的光学符号是否对应于第一光学符号或第二光学符号 符号。 光接收机还可以包括解码器，以基于确定来构造码字，并且使用码本将构造的码字解码成消息。 光接收机可以获得超额的容量，并且利用最佳代码可以获得可靠的通信数据速率的Holevo限制。

    PHOTONIC ISING COMPUTE ENGINE WITH AN OPTICAL PHASED ARRAY
    50.
    发明申请
    PHOTONIC ISING COMPUTE ENGINE WITH AN OPTICAL PHASED ARRAY 审中-公开

    公开(公告)号：WO2023086516A1

    公开(公告)日：2023-05-19

    申请号：PCT/US2022/049609

    申请日：2022-11-10

    Applicant: RAYTHEON BBN TECHNOLOGIES, CORP.

    Inventor： SOLTANI, Moe, D. ,  LEATHAM, James, G.

    IPC: G01S17/34 ,  G01S17/89 ,  G02F1/29

    Abstract: A photonic processor computing engine device can include a photonic integrated circuit including an optical phased array having a plurality of radiating pixels that radiate optical signal beams. Each of the radiating pixels can include an optical antenna and an optical phase modulator. The engine can include an electronic control circuit positioned to receive the optical signal beams transmitted from the radiating pixels. The computing engine can further include an electronic feedback circuit in electrical communication with the focal plane array and the electronic control circuit to process a measured intensity of the optical signal beams received by the focal plane array from the optical phased array and provide a feedback signal to the electronic control circuit based on the measured intensity for recalibrating the optical phase modulators of the plurality of radiating pixels to control the phase of the optical signal beams emitted by the plurality of radiating pixels.

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