公开(公告)号：US20180234175A1

公开(公告)日：2018-08-16

申请号：US15947179

申请日：2018-04-06

申请人： University of Georgia Research Foundation, Inc.

发明人： Mable P. Fok ,  Ryan Toole

IPC分类号： H04B10/077 ,  H04B10/508 ,  H04B10/516 ,  H04B10/2575 ,  H04L7/027 ,  H04L25/06

CPC分类号： H04B10/0775 ,  H04B10/00 ,  H04B10/2575 ,  H04B10/508 ,  H04B10/5161 ,  H04B10/548 ,  H04B10/80 ,  H04B2210/006 ,  H04K3/226 ,  H04K3/25 ,  H04K3/827 ,  H04L7/0278 ,  H04L25/069

摘要： Various examples are provided for jamming avoidance response (JAR), and photonic implementations thereof. In one example, a method includes generating optical pulses that correspond to raising envelope of a beat signal associated with an interference signal and a reference signal; generating optical spikes that correspond to positive zero crossing points of the reference signal; and providing a phase output that indicates whether the beat signal is leading or lagging the reference signal, the phase output based at least in part upon the optical spikes. An adjustment to a reference frequency can be determined based at least in part upon the optical pulses and the phase output. In another example, a JAR system includes photonic circuitry to generate the optical pulses; photonic circuitry to generate the optical spikes; and photonic circuitry to provide the phase output. A logic unit can determine the adjustment to the reference frequency.

公开(公告)号：US20170237468A1

公开(公告)日：2017-08-17

申请号：US15586049

申请日：2017-05-03

申请人： FREELINC TECHNOLOGIES INC.

发明人： Douglas Howard Dobyns ,  Howard Bernard Dobyns ,  Jed Erich Woodard ,  Anthony Joseph Sutera

IPC分类号： H04B5/00 ,  H04K3/00

CPC分类号： H04B5/0031 ,  H04B5/00 ,  H04K3/42 ,  H04K3/68 ,  H04K3/827 ,  H04K3/84 ,  H04K3/92 ,  H04K2203/20 ,  H04K2203/24 ,  H04K2203/32 ,  H04K2203/34

摘要： A system for near field communications is provided. The system can include a near field generator configured to generate a near field detectable signal comprising information. The system can include a near field detector configured to receive the near field detectable signal and output the information. The system can include an Electro-Magnetic (EM) shield surrounding the near field generator to block EM radio frequency (RF) signals in the vicinity of the near field generator from interfering with operations of the near field generator. The EM shield does not prevent communication of the near field detectable signal between the near field generator and the near field detector. The EM shield can be configured to reduce magnetic field loss from eddy currents in the EM shield as the near field detectable signal passes through the EM shield.

公开(公告)号：US20160315774A1

公开(公告)日：2016-10-27

申请号：US15103910

申请日：2014-12-12

申请人： University of North Dakota

发明人： Saleh FARUQUE ,  Prakash RANGANATHAN

IPC分类号： H04L9/32 ,  H04L29/06 ,  H04W12/06

CPC分类号： H04L9/3242 ,  H04K1/003 ,  H04K3/25 ,  H04K3/827 ,  H04K2203/18 ,  H04L63/06 ,  H04W12/02 ,  H04W12/06 ,  H04W12/12 ,  Y04S40/24

摘要： Apparatus and methods performing secure communications in an energy delivery system. Energy delivery systems may include phasor measurement units (PMU), phasor data concentrators (PDC) along with power generation, transmission and consumption equipment. The PMU and PDC may communicate in a grid network over secured wired or wireless communication protocols. Embodiments may include utilizing spread spectrum communication between PMU devices and PDC devices to sustain energy delivery functionality during a communications attack. Communications security may include a cryptographic key management scheme for secure PMU and PDC communication and identification. Embodiments may include clustering of PMU and PDC data for analysis and real-time presentation to grid operators. Embodiments may include clustering of PMU devices in a hexagonal geometry to provide for frequency reuse among devices with directional antenna.

摘要翻译： 在能量输送系统中执行安全通信的装置和方法。 能量输送系统可以包括相量测量单元（PMU），相量数据集中器（PDC）以及发电，传输和消耗设备。 PMU和PDC可以通过安全的有线或无线通信协议在网格网络中进行通信。 实施例可以包括在通信攻击期间利用PMU设备和PDC设备之间的扩频通信来维持能量传送功能。 通信安全可以包括用于安全PMU和PDC通信和识别的加密密钥管理方案。 实施例可以包括用于分析和实时呈现给网格运营商的PMU和PDC数据的聚类。 实施例可以包括以六边形几何形式聚集PMU设备，以提供具有定向天线的设备之间的频率重用。

公开(公告)号：US09331495B2

公开(公告)日：2016-05-03

申请号：US12923895

申请日：2010-10-13

申请人： Roger J. Soar

发明人： Roger J. Soar

IPC分类号： H02J5/00 ,  F41G1/34 ,  F41H1/00 ,  H02J7/02 ,  H04B5/00 ,  H04K3/00 ,  F41G3/16

CPC分类号： H02J50/10 ,  F41G1/34 ,  F41G3/165 ,  F41H1/00 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0087 ,  H04K3/25 ,  H04K3/827 ,  Y10T307/625

摘要： An inductively coupled power and data transmission system include a main power source, apparel having an electrical conductor in electrical communication with the main power source, the apparel having a first inductively couplable power and data transmission sub-system to regulate power to the primary coil or coils and transmission of power and data by the primary coil or coils and reception of data by the primary coil or coils, and an independent device having a second inductively couplable power and data transmission sub-system so as to regulate reception of power and data by the secondary coil or coils and transmission of data from a secondary processor by the secondary coil or coils. The first and second primary coils transfer said power and data during inductive coupling, at electromagnetic radiation frequencies, between the first primary coil or coils and the secondary coil or coils.

摘要翻译： 电感耦合功率和数据传输系统包括主电源，具有与主电源电连通的电导体的服装，该服饰具有第一电感耦合电力和数据传输子系统以调节对初级线圈的电力，或 线圈和初级线圈或线圈的功率和数据传输以及由初级线圈或线圈接收数据的独立装置，以及具有第二电感耦合功率和数据传输子系统的独立装置，以便通过以下方式调节功率和数据的接收： 次级线圈或线圈以及由次级线圈或线圈从二级处理器传输数据。 第一和第二初级线圈在第一初级线圈或次级线圈或线圈之间的电磁耦合期间以电磁辐射频率传输所述功率和数据。

公开(公告)号：US20150118998A1

公开(公告)日：2015-04-30

申请号：US14504027

申请日：2014-10-01

申请人： EICES Research, Inc.

发明人： Peter D. Karabinis

IPC分类号： H04W48/02 ,  H04W12/08 ,  H04W12/06

CPC分类号： H04W12/04 ,  H04B1/69 ,  H04B1/707 ,  H04B1/7097 ,  H04B2201/70715 ,  H04K1/00 ,  H04K3/25 ,  H04K3/827 ,  H04K2203/18 ,  H04L1/0043 ,  H04L1/009 ,  H04L1/0091 ,  H04L5/0007 ,  H04L23/02 ,  H04L25/03834 ,  H04L25/03866 ,  H04L25/03987 ,  H04W12/06 ,  H04W12/08 ,  H04W36/18 ,  H04W48/02 ,  H04W84/045 ,  H04W88/08

摘要： A wireless network may comprise a plurality of base stations and a plurality of access points, such as femtocells, which may be installed in homes and/or offices, as deemed necessary to provide improved signal quality and increased data throughput while off-loading capacity from one or more near-by base stations. A user device may be configured to detect proximity to an access point and establish communications preferentially with the access point while refraining from communicating with a base station even though the user device is within a service region of the base station and can communicate with that base station.

摘要翻译： 无线网络可以包括多个基站以及可以安装在家庭和/或办公室中的多个接入点，诸如毫微微小区，被认为是必要的，以提供改进的信号质量和增加的数据吞吐量，同时从 一个或多个近距离基站。 用户设备可以被配置为：即使用户设备在基站的服务区域内，并且可以与该基站进行通信，检测到接入点的接近度并优先与接入点建立通信，同时避免与基站通信 。

公开(公告)号：US09014665B2

公开(公告)日：2015-04-21

申请号：US13400148

申请日：2012-02-20

申请人： Yaron Shany ,  Nir Shapira

发明人： Yaron Shany ,  Nir Shapira

IPC分类号： H04M1/66 ,  H04K3/00

CPC分类号： H04K3/43 ,  H04K3/45 ,  H04K3/825 ,  H04K3/827 ,  H04K2203/32 ,  H04K2203/34

摘要： A method for communication includes generating one or more data streams for transmission to respective target receivers, and one or more jamming streams. At least one parameter, selected from a group of parameters consisting of power ratios for allocation to the jamming streams and Modulation and Coding Schemes (MCSs) for assigning to the data streams, is calculated based on a criterion that is set to reduce a probability of the data streams being decoded by at least one eavesdropping receiver. The data streams and the jamming streams are transmitted using an antenna array while applying the at least one parameter.

摘要翻译： 一种用于通信的方法包括：生成用于传输到各个目标接收机的一个或多个数据流，以及一个或多个干扰流。 从用于分配到干扰流的功率比组成的参数组中选择的至少一个参数和用于分配给数据流的调制和编码方案（MCS）是基于设置为降低概率的标准来计算的 数据流由至少一个窃听接收器解码。 在应用至少一个参数的同时使用天线阵列传输数据流和干扰流。

公开(公告)号：US20140171030A1

公开(公告)日：2014-06-19

申请号：US14187899

申请日：2014-02-24

申请人： EICES Research, Inc.

发明人： Peter D. Karabinis

IPC分类号： H04W36/18 ,  H04W12/06

CPC分类号： H04W12/04 ,  H04B1/69 ,  H04B1/707 ,  H04B1/7097 ,  H04B2201/70715 ,  H04K1/00 ,  H04K3/25 ,  H04K3/827 ,  H04K2203/18 ,  H04L1/0043 ,  H04L1/009 ,  H04L1/0091 ,  H04L5/0007 ,  H04L23/02 ,  H04L25/03834 ,  H04L25/03866 ,  H04L25/03987 ,  H04W12/06 ,  H04W12/08 ,  H04W36/18 ,  H04W48/02 ,  H04W84/045 ,  H04W88/08

摘要： Systems, methods and/or mobile devices are provided that enable a level of privacy/security in wireless communications to be increased responsive to a content of the wireless communications, biometric data and/or a position from which the wireless communications takes place. A plurality of communications modes is used by the system infrastructure and the plurality of mobile devices communicating therewith to increase privacy and undetectability of transmitted signals. The increased level of privacy and undetectability of signals is provided via pseudo-randomly generated signaling alphabets that are used by the mobile devices and by the system infrastructure to provide the communications. This represents a level of encryption/scrambling that is over and above the conventional encryption and/or scrambling at the bit level. Accordingly, systems, methods and/or devices providing a concatenated level of encryption/scrambling are provided.

摘要翻译： 提供了系统，方法和/或移动设备，其能够响应于无线通信的内容，生物特征数据和/或发生无线通信的位置来增加无线通信中的隐私/安全级别。 多个通信模式被系统基础设施和与其通信的多个移动设备使用以增加发射信号的隐私和不可检测性。 通过伪随机生成的信令字母提供信号的增加的隐私级别和不可检测性，所述信令字母由移动设备和系统基础设施用于提供通信。 这表示超过常规加密和/或比特级加扰的加密/加扰水平。 因此，提供了提供级联级联的加密/加扰的系统，方法和/或设备。

公开(公告)号：US20130315341A1

公开(公告)日：2013-11-28

申请号：US13045188

申请日：2011-03-10

申请人： Denis COUILLARD ,  François GAGNON

发明人： Denis COUILLARD ,  François GAGNON

IPC分类号： H04K3/00

CPC分类号： H04K3/80 ,  H04K1/006 ,  H04K1/06 ,  H04K3/28 ,  H04K3/41 ,  H04K3/45 ,  H04K3/46 ,  H04K3/827 ,  H04K2203/34

摘要： There is described the use of Digital Radio Frequency Memory (DRFM) modules to jam certain communication signals while allowing others to be received on a given frequency band. The DRFM modules exploit the multi-path phenomenon by using transmitted signals to cause full band destructive echoes and/or distortions. A set of receivers used in conjunction with the DRFM modules are aware of the exact multi-path induced by the DRFM modules and are therefore able to mitigate or even benefit from the effects of the destructive multi-path and maintain or improve communications.

摘要翻译： 描述了使用数字射频存储器（DRFM）模块来阻塞某些通信信号，同时允许在给定频带上接收其他通信信号。 DRFM模块通过使用传输信号来引起多径现象，引起全频带破坏性回波和/或失真。 与DRFM模块结合使用的一组接收器意识到由DRFM模块引起的精确多路径，因此能够减轻甚至受益于破坏性多路径的影响并维护或改善通信。

公开(公告)号：US08537910B2

公开(公告)日：2013-09-17

申请号：US12978092

申请日：2010-12-23

申请人： Peter D. Karabinis

发明人： Peter D. Karabinis

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04B1/692 ,  H04K1/00 ,  H04K3/25 ,  H04K3/827 ,  H04L23/02

摘要： An available signal space, whether it is a priori specified or is cognitively determined based upon an assessment of frequency utilization, serves to provide a number of signal dimensions which may be occupied by a number of pseudo-randomly generated waveforms. The number of pseudo-randomly generated waveforms may be based upon a key input to a pseudo-random number generator and a desired statistical distribution and may be subjected to an orthogonalization procedure to produce a respective number of orthogonal pseudo-random waveforms which may serve as a communications alphabet. A specific data sequence to be communicated may be associated with a respective specific element/member of the orthogonal pseudo-random waveforms and that specific element/member may be transmitted in lieu of the specific data sequence. Systems/methods of spread-spectrum communications that are substationally devoid of revealing signatures such as chipping and cyclostationarity are presented, offering increased privacy, reduced detectability and reduced exploitation of communications.

摘要翻译： 可用的信号空间，无论是先验指定的还是基于频率利用率的评估而被认知地确定，用于提供可能被多个伪随机产生的波形占据的多个信号维度。 伪随机生成的波形的数量可以基于对伪随机数发生器的键输入和期望的统计分布，并且可以进行正交化过程以产生相应数量的正交伪随机波形，其可以用作 通讯字母表。 要通信的特定数据序列可以与正交伪随机波形的相应特定元素/成员相关联，并且可以发送特定元素/成员来代替特定数据序列。 本文介绍了扩展频谱通信的系统/方法，这些通信在不完整的情况下不具有揭示签名，如切片和循环平稳性，提供了增强的隐私性，降低的可检测性和减少的通信利用。

公开(公告)号：US08406427B2

公开(公告)日：2013-03-26

申请号：US12587743

申请日：2009-10-13

申请人： Naresh Chand ,  Bruce M. Eteson

发明人： Naresh Chand ,  Bruce M. Eteson

IPC分类号： H04L29/06

CPC分类号： H04K3/827 ,  H04K3/25 ,  H04K2203/14 ,  H04K2203/18 ,  H04L63/105 ,  H04L63/18

摘要： A communication network includes a local area network (LAN) and a wireless access point coupled to the LAN. In one embodiment, each access point includes a medium access control (MAC) stage, and a radio frequency (RF) transmitter/receiver for communicating unsecure message data via RF links with users of associated wireless devices. An optical transmitter/receiver in the access point enables the users to communicate secure message data over the LAN via free space optical (FSO) links with the users. The MAC stage operates (i) to direct unsecure data from the LAN to the wireless device users and to direct unsecure data from the users to the LAN, via the RF transmitter/receiver; and (ii) to direct secure data from the LAN to the wireless device users and to direct secure data from the users to the LAN, via the optical transmitter/receiver. An integrated VoIP/FSO portable handset is also disclosed.

摘要翻译： 通信网络包括局域网（LAN）和耦合到LAN的无线接入点。 在一个实施例中，每个接入点包括介质访问控制（MAC）级，以及用于经由RF链路与不相关无线设备的用户通信不安全消息数据的射频（RF）发射机/接收机。 接入点中的光发射机/接收机使得用户能够通过与用户的自由空间光（FSO）链路在LAN上传送安全消息数据。 MAC级操作（i）将不安全的数据从LAN引导到无线设备用户，并通过RF发射机/接收机将不安全的数据从用户引导到LAN; 以及（ii）将来自LAN的安全数据引导到无线设备用户，并经由光发射机/接收机将来自用户的安全数据引导至LAN。 还公开了一种集成的VoIP / FSO便携式手持机。