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21.发明申请
公开(公告)号：WO2014201390A1
公开(公告)日：2014-12-18
申请号：PCT/US2014/042357
申请日：2014-06-13
Applicant: COMTECH EF DATA CORP.
Inventor： SOCHACKI, John
CPC classification number: H04B1/62 , H03F1/3241 , H03F1/3247 , H03F1/3258 , H04B1/0475 , H04B2001/0425
Abstract: A method of generating N th order product predistortion coefficients for use by a linearizer in a non-linear communications system comprising receiving an input signal by a processor, applying, by the processor, a frequency domain-based adaptation algorithm by measuring N th order products of an output signal of the system and iteratively adjusting a predistortion coefficient of a predistorter until the N th order product is substantially equal to a predetermined minimum value.
Abstract translation: 一种在非线性通信系统中产生由线性化器使用的N阶乘积预失真系数的方法，包括由处理器接收输入信号，由处理器应用基于频域的自适应算法，通过测量第 输出信号，迭代地调整预失真器的预失真系数，直到第N阶乘积基本上等于预定的最小值。
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22.发明申请EMBEDDED META-CARRIER WITH SPREAD SPECTRUM FOR PERIODIC-BURST CARRIERS VIA OVERLAID CARRIERS 审中-公开嵌入式传感器，带有通过过载载波的周期性冲击载波的传播频谱
公开(公告)号：WO2013165436A1
公开(公告)日：2013-11-07
申请号：PCT/US2012/036522
申请日：2012-05-04
Applicant: COMTECH EF DATA CORP.
Inventor： BEELER, Michael , MAMARIL, Cris , HARIG, Jeffrey
CPC classification number: H04B1/707
Abstract: A method for identifying the presence of an electronic transmission comprising detecting, by a detecting device, the presence of a burst of electromagnetic energy that results from the presence of an original carrier signal and transmitting, by a transmitting device, a spread spectrum meta-carrier signal within a portion of a bandwidth of the original carrier signal, wherein the meta-carrier signal contains information about the original carrier signal and is transmitted such that the meta-carrier signal occupies at least a portion of a bandwidth of the original earner signal during the presence of the burst of electromagnetic energy.
Abstract translation: 一种用于识别电子传输的存在的方法，包括由检测装置检测由原始载波信号的存在产生的电磁能量的突发的存在，并由发射装置发射扩频元载波 在原始载波信号的带宽的一部分内的信号，其中，所述元载波信号包含关于原始载波信号的信息，并且被传输，使得元载波信号占据原始载波信号的带宽的至少一部分 存在电磁能量的爆发。
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公开(公告)号：WO2013106178A1
公开(公告)日：2013-07-18
申请号：PCT/US2012/070693
申请日：2012-12-19
Applicant: COMTECH EF DATA CORP.
Inventor： MAMARIL, Cris, M. , BEELER, Michael , DAVIS, Wallace
CPC classification number: H04W52/36 , H04B7/0678 , H04B7/18513 , H04L1/0003 , H04L1/0041 , H04W52/243 , H04W76/20
Abstract: A method of reducing adjacent satellite interference, the method comprising monitoring, by a processor, a power spectral density (PSD) of a signal transmitted by a remote transmitter, determining, by the processor, that the PSD of the signal transmitted by the remote transmitter is above a predetermined level, and reducing the PSD of the signal transmitted by the remote transmitter by adjusting at least one of a spread spectrum spreading factor, a power level, a modulation factor, and a forward error correction (FEC) rate using a modulator while maintaining a constant spectral allocation and center frequency of the signal.
Abstract translation: 一种减少相邻卫星干扰的方法，所述方法包括由处理器监视由远程发射机发射的信号的功率谱密度（PSD），由所述处理器确定由所述远程发射机发射的信号的PSD 超过预定电平，并且通过使用调制器调整扩展频谱扩展因子，功率电平，调制因子和前向纠错（FEC）速率中的至少一个来减少由远程发射机发送的信号的PSD 同时保持信号的恒定频谱分配和中心频率。
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24.发明申请A METHOD AND SYSTEM FOR PROVIDING HITLESS SWITCHING WHILE MAINTAINING A POWER EQUIVALENT BANDWIDTH (PEB) RATIO USING MULTIPLE CARRIERS 审中-公开一种使用多载波保护功率等效带宽（PEB）比例的提供无缝切换的方法和系统
公开(公告)号：WO2013096465A1
公开(公告)日：2013-06-27
申请号：PCT/US2012/070648
申请日：2012-12-19
Applicant: COMTECH EF DATA CORP.
Inventor： DAVIS, Wallace , RHODES, Valentine J. , BEELER, Michael
CPC classification number: H04B10/1129 , H04B1/74 , H04B7/18582 , H04B10/118 , H04L1/0003 , H04L1/0015 , Y02D50/10
Abstract: A method of hitless switching over a communications link, the method comprising transmitting, by a first modulator to a remote receiver, a first carrier signal having a first center frequency, enabling, by a second modulator to the remote receiver, transmission of a second carrier signal having a second center frequency while the first modulator is transmitting the first carrier signal, increasing, through the second modulator, a power level of the second carrier signal while the first carrier signal is transmitting, simultaneously decreasing, through the first modulator, a power level of the first carrier signal while the power level of the second carrier signal is increasing, and disabling transmission of the first carrier signal to the remote receiver when the power level of the second carrier signal reaches a predetermined level.
Abstract translation: 一种无线切换通信链路的方法，所述方法包括由第一调制器向远程接收机发送具有第一中心频率的第一载波信号，由第二调制器向远程接收机发送第二载波的传输 信号具有第二中心频率，同时第一调制器正在发射第一载波信号，当第一载波信号正在通过第一调制器同时减小时，通过第二调制器增加第二载波信号的功率电平， 当第二载波信号的功率电平增加时，第一载波信号的电平，以及当第二载波信号的功率电平达到预定电平时禁止第一载波信号传输到远程接收机。
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25.发明申请METHODS AND SYSTEMS FOR PROVIDING INTERFERENCE BASED PHYSICAL-LAYER ENCRYPTION 审中-公开用于提供基于干扰的物理层加密的方法和系统
公开(公告)号：WO2012173749A3
公开(公告)日：2013-04-04
申请号：PCT/US2012039000
申请日：2012-05-22
Applicant: COMTECH EF DATA CORP
Inventor： AKHAVAN-TOYSERKANI KASRA , RIPPLE ANDREW , BEELER MICHAEL , MAMARIL CRIS
CPC classification number: H04K1/02
Abstract: A method for encrypting an information carrier comprising generating a sequence of data using a sequence generator, modulating, using a first modulator an output from the sequence generator such that an interference signal results, encoding the interference generator's synchronization information using an encoder, modulating, using a second modulator, the encoded synchronization information such that a synchronization carrier signal results, spreading the synchronization carrier signal using a spreader such that a spread sub-carrier synchronization signal results, and combining the modulated information carrier signal, interference signal, and spread sub-carrier synchronization signal using a signal combiner such that a composite signal results, the interference signal having one or more signal characteristics that results in obfuscation of the information carrier signal when the information carrier signal and interference signal are combined.
Abstract translation: 一种用于加密信息载体的方法，包括使用序列发生器生成数据序列，使用第一调制器调制来自序列发生器的输出，使得使用编码器对干扰发生器的同步信息进行编码的干扰信号进行调制，使用 第二调制器，编码的同步信息，使得同步载波信号结果，使用扩展器扩展同步载波信号，使得扩展的子载波同步信号结果，并将调制的信息载波信号，干扰信号和扩展子信号组合， 载波同步信号使用信号组合器，使得复合信号导致干扰信号具有当信息载波信号和干扰信号被组合时导致信息载体信号混淆的一个或多个信号特性。
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Patent Agency Ranking
公开(公告)号：WO2013003633A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/044715
申请日：2012-06-28
Applicant: COMTECH EF DATA CORP.
Inventor： BEELER, Michael , MORRIS, Frederick , MAMARIL, Cris , HARIG, Jeffrey , CANNON, Richard, Hollingsworth , BANISTER, Brian, A.
CPC classification number: H04B1/707 , H04B1/7097 , H04L27/3488
Abstract: A method of embedding and transmitting a meta-data message in an original burst carrier signal for message reassembly comprising spreading a meta-carrier signal using a Direct Sequence Spread Spectrum (DSSS) spreading code having a Pseudo-Random Noise (PRN) spreading code sequence, the meta-carrier signal comprising one or more bits of meta-data information about the original burst carrier signal, lowering a power spectral density of the meta- carrier signal using the PRN spreading code such that interference with the original signal is reduced, combining the original burst carrier and the meta-carrier signals using a modulator such that a composite burst carrier signal results wherein the meta-carrier signal occupies at least a portion of a bandwidth of the original carrier, and transmitting the composite burst carrier using a transmitter over a telecommunications channel in which only one burst carrier signal is expected to be present within a predetermined frequency bandwidth at a point in time.
Abstract translation: 一种在原始突发载波信号中嵌入和发送元数据消息用于消息重新组合的方法，包括使用具有伪随机噪声（PRN）扩展码序列的直接序列扩频（DSSS）扩展码扩展元载波信号 元载波信号包括关于原始脉冲串载波信号的元数据信息的一个或多个位，使用PRN扩展码降低元载波信号的功率谱密度，从而减少对原始信号的干扰，组合 使用调制器的原始突发载波和元载波信号，使得复合突发载波信号导致元载波信号占据原始载波的带宽的至少一部分，并且使用发射机发射复合突发载波 在ap处，期望在预定频带内预期存在一个突发载波信号的电信信道 及时点燃
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27.发明申请Seamless Antenna Hanover System and Related Methods for Non-Geosynchronous Satellites 审中-公开无缝天线汉诺威系统及非同步卫星相关方法公开(公告)号：US20160183145A1
公开(公告)日：2016-06-23
申请号：US14596981
申请日：2015-01-14
Applicant: Comtech EF Data Corp.
Inventor： Lakshmana Chintada , Jeffrey Harig
CPC classification number: H04W36/18 , H04B7/18541 , H04B7/18578 , H04W56/004 , H04W84/06
Abstract: A method of seamless antenna handover comprising transmitting at least one of a handover trigger packet and a handover synchronization packet (HSP) by a transmitter to a first and a second repeating relay, the first repeating relay configured to transmit a data signal to a first modem at a remote receiver and the second repeating relay configured to transmit the data signal to a second modem at the remote receiver, receiving, by the first and second modems at the remote receiver, the data signal and the at least one of the handover trigger packet and the HSP from the first and second repeating relays, respectively, and activating one of the first and second modems and deactivating the other of the first and second modems in response to receiving the at least one of the handover trigger packet and the HSP.
Abstract translation: 一种无缝天线切换的方法，包括：通过发射机向第一和第二重复中继发送切换触发分组和切换同步分组（HSP）中的至少一个，所述第一重复中继被配置为将数据信号发送到第一调制解调器 在远程接收机处，并且所述第二重复中继被配置为将所述数据信号发送到所述远程接收机处的第二调制解调器，由所述远程接收器的所述第一和第二调制解调器接收所述数据信号和所述切换触发分组中的至少一个 和来自第一和第二重复中继的HSP，并且响应于接收到切换触发分组和HSP中的至少一个，激活第一和第二调制解调器之一，并且去激活第一和第二调制解调器中的另一个。
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28.发明申请Method and System for Transmission of Identification via Metadata for Repeating Relays using Spread-Spectrum Technology 审中-公开使用扩频技术通过元数据传输重复继电器的方法和系统公开(公告)号：US20150124855A1
公开(公告)日：2015-05-07
申请号：US14595883
申请日：2015-01-13
Applicant: Comtech EF Data Corp.
Inventor： Frederick Morris , Michael Beeler
CPC classification number: H04B1/707 , H04B1/7097 , H04B7/15 , H04B7/165 , H04B7/18515
Abstract: A communication method for transmitting meta-data through a meta-carrier signal comprising encoding meta-data using an encoder, the meta-data comprising information that identifies a repeating relay to which a spread meta-carrier signal is to be transmitted, encoded using an encoder, modulating, using a modulator and spreading, using a spreader, the encoded meta-data such that the spread meta-carrier signal results, and transmitting, by a transmitting device, the spread meta-carrier signal to the repeating relay wherein the repeating relay does not process or modify the spread meta-carrier signal, the spread meta-carrier signal being transmitted over at least a portion of a bandwidth of the repeating relay.
Abstract translation: 一种用于通过元载波信号发送元数据的通信方法，包括使用编码器对元数据进行编码，所述元数据包括识别扩展元载波信号将被发送到的重复中继的信息，所述元数据使用 编码器，调制，使用调制器和使用扩展器扩展编码的元数据，使得扩展元载波信号导致并由传输设备将扩展元载波信号发送到重复中继，其中重复 继电器不处理或修改扩展元载波信号，扩展元载波信号通过重复中继的带宽的至少一部分传输。
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公开(公告)号：US20150074499A1
公开(公告)日：2015-03-12
申请号：US14538654
申请日：2014-11-11
Applicant: Comtech EF Data Corp.
Inventor： Brian A. Banister , Patrick Owsley , Sean M. Collison
CPC classification number: H04L1/005 , H03M13/13 , H03M13/19 , H03M13/3776 , H03M13/451 , H03M13/616 , H03M13/6561 , H03M13/6577 , H03M13/6583
Abstract: A method of searching for candidate codewords for a telecommunications system, the method comprising receiving a sequence of constellation points, producing a received FEC vector comprised of bits from the received constellation points, comparing the received FEC vector with a plurality of candidate codewords within a Dorsch decoding process using an ordered pattern, and terminating the search when a candidate codeword from among the plurality of candidate codewords is found residing within a predetermined range of a specified distance of the received FEC vector.
Abstract translation: 一种搜索用于电信系统的候选码字的方法，所述方法包括接收星座点序列，从接收的星座点产生包括比特的接收到的FEC向量，将接收的FEC向量与Dorsch内的多个候选码字进行比较 解码处理，并且当来自多个候选码字中的候选码字被发现驻留在接收到的FEC矢量的指定距离的预定范围内时终止搜索。
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30.发明申请公开(公告)号：US20150003319A1
公开(公告)日：2015-01-01
申请号：US14481083
申请日：2014-09-09
Applicant: Comtech EF Data Corp.
Inventor： Michael Beeler
CPC classification number: H04B7/1555 , H04B7/18515 , H04B10/532 , H04B10/614 , H04B14/008 , H04J14/06 , H04L1/0076
Abstract: A method of and system for distinguishing polarizations and information about the carrier signals transmitted from a repeating relay comprising encoding, using an encoder, a first data stream and a second data stream at a repeating relay, modulating, using a modulator, the first and second encoded data streams at the repeating relay, spreading, using a spreader, the first modulated data stream such that a first spread waveform results having first spreading characteristics and the second modulated data stream such that a second spread waveform results having second spreading characteristics, wherein the first spreading characteristics and the second spreading characteristics are different and differentiate the first spread waveform from the second spread waveform, and transmitting the first spread waveform as a first spread spectrum carrier signal on a first electromagnetic polarization and the second spread waveform as a second spread spectrum carrier signal on a second EM polarization.
Abstract translation: 用于区分从重复中继发送的载波信号的偏振和信息的方法和系统，包括使用编码器在重复继电器处编码第一数据流和第二数据流，使用调制器调制第一和第二 在重复中继处的编码数据流，使用扩展器扩展第一调制数据流，使得第一扩展波形具有第一扩展特性和第二调制数据流，使得第二扩展波形具有第二扩展特性，其中， 第一扩展特性和第二扩展特性是不同的，并且区分第一扩展波形与第二扩展波形，并且将第一扩展波形作为第一电磁偏振的第一扩展频谱载波信号和作为第二扩展频谱的第二扩展波形 载波信号在第二EM极化 n。
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