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公开(公告)号：US11233326B2
公开(公告)日：2022-01-25
申请号：US16837654
申请日：2020-04-01
Applicant: Raytheon Company
Inventor： Sean D. Keller , Gerald P. Uyeno , David G. Manzi , Benn Gleason
Abstract: An optical feed network (OFN) for an RF phased antenna array includes a single free-space optical beamformer that supports all of the RF electrical feed signals for the RF phased antenna array to steer an RF beam. The free-space optical beamformer can more easily scale to accommodate larger array sizes than either the discrete fiber channel or PIC implementations. Furthermore, certain embodiments of the optical beamformer avoid the complexity of having to compute FFTs for each channel to steer the beam, instead relying on the inherent function of an imaging lens to perform the FFT, which in turn facilitates rapid steering.
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公开(公告)号：US20210313685A1
公开(公告)日：2021-10-07
申请号：US16837654
申请日：2020-04-01
Applicant: Raytheon Company
Inventor： Sean D. Keller , Gerald P. Uyeno , David G. Manzi , Benn Gleason
Abstract: An optical feed network (OFN) for an RF phased antenna array includes a single free-space optical beamformer that supports all of the RF electrical feed signals for the RF phased antenna array to steer an RF beam. The free-space optical beamformer can more easily scale to accommodate larger array sizes than either the discrete fiber channel or PIC implementations. Furthermore, certain embodiments of the optical beamformer avoid the complexity of having to compute FFTs for each channel to steer the beam, instead relying on the inherent function of an imaging lens to perform the FFT, which in turn facilitates rapid steering.
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公开(公告)号：US11018924B1
公开(公告)日：2021-05-25
申请号：US16813663
申请日：2020-03-09
Applicant: Raytheon Company
Inventor： David G. Manzi , Robert L. Leatham
Abstract: A method of generating a transmit signal by a transmitter for transmission to a receiver includes receiving input data, generating a base symbol signal, the base symbol signal, generating a perturbation signal based on the input data, and combining the base symbol signal and the perturbation signal to generate the transmit signal.
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4.发明授权Polynomial phases for multi-carrier modulation schemes with time domain windowing 有权具有时域窗口的多载波调制方案的多项式相位公开(公告)号：US08976878B2
公开(公告)日：2015-03-10
申请号：US13741765
申请日：2013-01-15
Applicant: Raytheon Company
Inventor： David G. Manzi , Pranav Patel , Kevin R. Albrecht , Rajesh Kulkarni , Michael C. Brown , Sam M. Daniel
CPC classification number: H04L27/2602 , H04L27/18 , H04L27/2627 , H04L27/2634
Abstract: In one aspect, a method includes performing a mapping on bits to form a complex data symbol, applying a frequency rotation mask to the complex data symbol based on a polynomial phase, performing an inverse discrete Fourier transform (IDFT) after applying the frequency rotation mask, applying a time domain window after performing the IDFT, converting digital data to analog data after applying the time window and transmitting the analog data as an analog signal.
Abstract translation: 在一个方面，一种方法包括：对比特进行映射以形成复数据符号，基于多项式相位对复数数据符号应用频率旋转掩码，在施加频率旋转掩码之后执行离散傅里叶逆变换（IDFT） ，在执行IDFT之后应用时域窗口，在应用时间窗口之后将数字数据转换为模拟数据，并将模拟数据作为模拟信号发送。
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5.发明申请POLYNOMIAL PHASES FOR MULTI-CARRIER MODULATION SCHEMES WITH TIME DOMAIN WINDOWING 有权具有时域窗口的多载波调制方案的多项式公开(公告)号：US20140198864A1
公开(公告)日：2014-07-17
申请号：US13741765
申请日：2013-01-15
Applicant: RAYTHEON COMPANY
Inventor： David G. Manzi , Pranav Patel , Kevin R. Albrecht , Rajesh Kulkarni , Michael C. Brown , Sam M. Daniel
IPC: H04L27/26
CPC classification number: H04L27/2602 , H04L27/18 , H04L27/2627 , H04L27/2634
Abstract: In one aspect, a method includes performing a mapping on bits to form a complex data symbol, applying a frequency rotation mask to the complex data symbol based on a polynomial phase, performing an inverse discrete Fourier transform (IDFT) after applying the frequency rotation mask, applying a time domain window after performing the IDFT, converting digital data to analog data after applying the time window and transmitting the analog data as an analog signal.
Abstract translation: 在一个方面，一种方法包括：对比特进行映射以形成复数据符号，基于多项式相位对复数数据符号应用频率旋转掩码，在施加频率旋转掩码之后执行离散傅里叶逆变换（IDFT） ，在执行IDFT之后应用时域窗口，在应用时间窗口之后将数字数据转换为模拟数据，并将模拟数据作为模拟信号发送。
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Patent Agency Ranking
公开(公告)号：US20220394646A1
公开(公告)日：2022-12-08
申请号：US17339792
申请日：2021-06-04
Applicant: Raytheon Company
Inventor： Brian Leneave , Brett Joseph Steenblik , David G. Manzi
IPC: H04W56/00
Abstract: Apparatus and associated methods relate to providing robust synchronization of a Radio-Frequency (RF) communication in a severe-fading environment. A first portion of a detected RF signal is auto-correlated with a second portion of the detected RF signal. The first and second portions are time-separated by the predetermined time delay separating the first and second code-sequences. A third portion of the detected RF signal is sync-correlated with a sync-sequence so as to generate a sync-correlation signal. The third portion is of the predetermined length of the sync sequence and includes the first and second portions of the detected RF signal used to generate the auto-correlation signal. The auto-correlation signal is multiplied by the sync-correlation signal so as to generate a combined synchronization signal. A peak in the combined synchronization signal is then detected. This peak can be indicative of a synchronization time of an authorized communication.
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公开(公告)号：US20190048914A1
公开(公告)日：2019-02-14
申请号：US15672651
申请日：2017-08-09
Applicant: Raytheon Company
Inventor： Christopher S. Nordahl , David G. Manzi , Linda A. Gee , Andrew B. Facciano
IPC: F16B31/00
Abstract: A coupler for separable physically coupling together a pair of objects includes two parts, on opposite sides of a boundary, that have different piezoelectric characteristics. When an electric field is applied to the coupler parts the piezoelectric forces induce a mechanical stress that separates the parts. The parts may be made of the same or a similar material, such as a suitable ceramic material, with the different piezoelectric characteristics produced by templating the parts with different domain orientations, from different seeds, for example using a three-dimensional manufacturing processes. The coupler may be used to allow shock-free (or reduced shock) separation of parts, such as separation of stages of vehicles such as flight vehicles.
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公开(公告)号：US20170264015A1
公开(公告)日：2017-09-14
申请号：US15068026
申请日：2016-03-11
Applicant: Raytheon Company
Inventor： Glafkos K. Stratis , Anton Vanderwyst , Wayne L. Sunne , David G. Derrick , James P. Edmiston , David G. Manzi , Howard C. Choe , Alphonso A. Samuel
CPC classification number: H01Q3/34 , B64C30/00 , B64G1/66 , F42B15/10 , F42B15/12 , F42B15/34 , G01B7/06 , G01N9/24 , H01Q1/281 , H01Q1/42 , H01Q21/20 , H01Q21/28 , H05H1/00 , H05H1/0062
Abstract: A sensor system and method of reducing plasma-induced communication inhibition for a main antenna includes using auxiliary antennas for detecting a density of plasma that affects operation of the main antenna, and re-orienting an electromagnetic field around the main antenna in response to the density detected to reduce effect of the plasma on the main antenna. The auxiliary antennas are also operable for data link communication and switchable such if the density of the plasma inhibits receipt or sending of signals by one of the auxiliary antennas, another one of the auxiliary antennas may be used for data link communication.
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公开(公告)号：US12047892B2
公开(公告)日：2024-07-23
申请号：US17339792
申请日：2021-06-04
Applicant: Raytheon Company
Inventor： Brian Leneave , Brett Joseph Steenblik , David G. Manzi
IPC: H04W56/00
CPC classification number: H04W56/0015
Abstract: Apparatus and associated methods relate to providing robust synchronization of a Radio-Frequency (RF) communication in a severe-fading environment. A first portion of a detected RF signal is auto-correlated with a second portion of the detected RF signal. The first and second portions are time-separated by the predetermined time delay separating the first and second code-sequences. A third portion of the detected RF signal is sync-correlated with a sync-sequence so as to generate a sync-correlation signal. The third portion is of the predetermined length of the sync sequence and includes the first and second portions of the detected RF signal used to generate the auto-correlation signal. The auto-correlation signal is multiplied by the sync-correlation signal so as to generate a combined synchronization signal. A peak in the combined synchronization signal is then detected. This peak can be indicative of a synchronization time of an authorized communication.
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公开(公告)号：US11964079B2
公开(公告)日：2024-04-23
申请号：US17208038
申请日：2021-03-22
Applicant: Raytheon Company
Inventor： Navid Keshavarz-Nia , David G. Manzi , Ross E. Myrehn, Sr.
IPC: A61L9/18
CPC classification number: A61L9/18 , A61L2209/111 , A61L2209/16
Abstract: A system includes one or more radio frequency (RF) emitters configured to transmit RF energy into a specified area in order to inactivate one or more specified microorganisms in the specified area. The system also includes a control system configured to control the one or more RF emitters in order to adjust the RF energy transmitted by the one or more RF emitters. The control system is configured to obtain information identifying different types of microorganisms that are or might be present in the specified area over time and to adjust the RF energy transmitted by the one or more RF emitters in order to target the different types of microorganisms for inactivation over time.
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