УСТРОЙСТВО ДЛЯ ВЫСОКОЧАСТОТНОЙ ПЕРЕДАЧИ СЕТЕВЫХ ДАННЫХ ПО ЛИНИЯМ

Изобретение относится к системам передачи данных по электрическим линиям. Техническим результатом является повышение скорости передачи данных, передаваемых на большие расстояния по электрическим линиям. Технический результат достигается тем, что устройство для высокочастотной передачи сетевых данных по линиям содержит передатчик, приемник, модем и соединитель, расположенные в двух или более местах вдоль электрической линии, причем соединитель имеет емкостные цепи, последовательно подключенные к трансформатору с воздушным или диэлектрическим сердечником, при этом емкостные цепи входят в резонанс с трансформатором на заранее заданной частоте, а соединитель устраняет помехи и согласован с характеристическим импедансом линии на заранее заданной частоте. 3 н. и 40 з.п. ф-лы, 13 ил.

СПОСОБ ПЕРЕДАЧИ ДИСКРЕТНЫХ ЭЛЕКТИЧЕСКИХ СИГНАЛОВ

Изобретение относится к способам передачи информации. Технический результат заключается в повышении дальности и надежности связи путем увеличения помехозащищенности за счет компенсации сигнала помехи в обоих проводах линии связи. Способ передачи дискретных электрических сигналов от передатчика к приемнику, расположенным на двухпроводной линии связи с источником напряжения питания, причем первый полюс источника и первый провод линии связи заземляют, а второй провод линии связи подключают ко второму полюсу источника через резистор, включающий передачу логического сигнала в двоичном коде путем замыкания линии передатчиком с помощью электрического ключа и считывание приемником значения напряжения сигнала во втором проводе, причем первый провод линии связи заземляют через дополнительный резистор, имеющий величину, равную величине первого резистора, а передачу сигнала и считывание значения напряжения сигнала производят относительно первого провода линии.

KOMMUNIKATION UEBER EINE SERIENLEITUNG

ELEKTRONISCHES STEUERUNGSVERFAHREN

Schaltungsanordnung zur normalen Durchfuehrung des Sprechverkehrs bei Stoerungsfaellen

Schaltungsanordnung zum Empfang von ueber Leitungen mit hohem Stoerpegel traegerfrequent uebertragenen, amplitudenmodulierten Signalen, insbesondere von ueber Hochspannungsleitungen uebertragenen Fernwirksignalen

BUSTEILNEHMER

Verfahren und System zur Unterdrückung eines Störsignals bei der Detektion eines Chirp-Signals

Die Erfindung betrifft ein Verfahren zur Unterdrückung eines Störsignals bei der Detektion eines Chirp-Signals aus einem Eingangssignal (X) und umfasst folgende Schritte:a. Aufnehmen des Eingangssignals (X);b. Berechnung eines Ausgangssignals (R1) als Korrelation aus dem aufgenommenen Eingangssignal (X) und einem Chirp-Referenzsignal (CR) mittels eines Korrelators (30);c. Berechnung eines Betrags (XB) des Eingangssignals (X) aus dem Eingangssignal (X);d. Berechnung eines Betrags (R1B) des Ausgangssignals (R1) aus dem Ausgangssignal (R1);e. Berechnung einer Phasendifferenz (P) zwischen dem Eingangssignal (X) und dem Ausgangssignal (R1);f. Berechnung eines synthetisierten Störsignals (R2) aus dem Betrag (XB) des Eingangssignals (X), dem Betrag (R1B) des Ausgangssignals (R1) und der Phasendifferenz (P) mittels eines Rotators (60);g. Berechnung eines Residualsignals (DR) als Differenz aus dem Ausgangssignal (R1) und dem synthetisierten Störsignal (R2).Die Erfindung betrifft ein System (10) ...

Verfahren zum Rauschunterdrücken in einer Batterie, Rauschunterdrückungsvorrichtung und Batterie

Es wird ein Verfahren zum Rauschunterdrücken in einer Batterie (10) vorgeschlagen, wobei das Verfahren folgende Schritte umfasst: Extrahieren eines ersten Rauschteilsignals aus einem Rauschsignal in der Batterie (10), wobei das erste Rauschteilsignal in einem ersten vorbestimmten Frequenzbereich liegt; Gleichrichten des ersten Rauschteilsignals zum Erzeugen einer Gleichstromspannung; Versorgen einer Signalverarbeitungseinheit mit der Gleichstromspannung; und Erzeugen eines Rauschunterdrückungssignals mittels der Signalverarbeitungseinheit zum Unterdrücken eines zweiten Rauschteilsignals des Rauschsignals in einem zweiten vorbestimmten Frequenzbereich, wobei sich der erste vorbestimmte Frequenzbereich von dem zweiten vorbestimmten Frequenzbereich unterscheidet.

VERFAHREN ZUR UEBERTRAGUNG VON INFORMATION UEBER ELEKTRISCHE ENERGIEVERSORGUNGSNETZE

Connector and method of connection

COMMUNICATION SYSTEM

Binary data error correction using hint signal

An error detection and correction method and apparatus is described which permits the correction of double errors using a (15, 11) Hamming code and a parity bit. The Hamming code and parity bit allows the detection of double errors. A modulated waveform carrying the binary data is examined for anomalies such as noise pulses. A hint signal is generated based on the anomalies which points to a suspect bit. The state of this bit is changed to correct for double errors. ...

Powered device interface circuit

MODULATION DEVICE

TRANSFORMATORI BUS COUPLING

DIGITAL POINT OF POINT TO HONOUR DATENÜBERTRAGUNGSSYSTEM ON AN ELECTRICAL NETWORK

RECEIVER AND TRANSMISSION METHOD FOR OFDM ÜBERTRAGUNGSSYSTEM ONE WITH A NEW PREAMBLE STRUCTURE

PROCEDURE FOR THE OPERATION AS WELL AS USE OF A STATIC FREQUENCY CHANGER AS ACTIVE ONE AUDIO FREQUENCY BARRIER

SWITCHING CONFIGURATION FOR TRANSFERRING BINARY SIGNALS BETWEEN SEVERAL PARTICIPANTS

MONITOR

NET COUPLING FOR MECHANISMS TO THE DATA COMMUNICATION OVER AN ELECTRICAL DISTRIBUTED NETWORK

PROCEDURE AND DEVICE FOR THE COLLECTION OF SENT DATA IN AN ELECTRICAL ENERGY DISTRIBUTION PLANT

HIGH FREQUENCY BAND ELIMINATION FILTER FOR LOW-VOLTAGE SYSTEMS WITH CARRIER-FREQUENT TRANSMISSION OF NEWS

MULTI-CARRIER PROCEDURE FOR THE TRANSMISSION OVER ENERGY DISTRIBUTED NETWORKS

PROCEDURE AND DEVICE FOR THE TWO-WAY DATA COMMUNICATION

DUPLEX DIGITAL TRANSMISSION SYSTEM

Method and system for adapting a telephone line modem for use on the power line

Signal repeater system

A method and system for bidirectional data and power transmission

FILTER FOR SEGMENTING POWER LINES FOR COMMUNICATIONS

METHOD FOR TRANSMITTING DIGITAL ELECTRIC SIGNALS

A system for surveillance of an area

RADIO COMMUNICATION SYSTEM

Power line communication system for local area networks

Method and apparatus for communicating by means of an electrical power cable

METHOD AND SYSTEM FOR POWER LINE NULL DETECTION AND AUTOMATIC FREQUENCY AND GAIN CONTROL

A system and method for detecting power line null frequencies and for adjusting the transmit frequency and transmit power to maximize the reliability and efficiency of the AC power line transmission link. The system includes a programmable logic device (102) in the transmitter, which receives information (101) and generatesa control signal (103) which controls the gain of amplifier (109) and provides a PPL control signal (104) for directing the Phase Locked Loop (105) in its selection of multiple frequencies for transmission to a receiver. A receiver detects and records the bit error rate and/or the received noise per frequency and communicates this information to the transmitter. When all desired frequencies have been transmitted and tested, the optimal frequency is identified or selected. Generally, the optimal frequency is the frequency requiring the lowest transmit power while maintaining an acceptable bit error rate or an acceptable noise level.

HIGH FREQUENCY NETWORK COMMUNICATIONS OVER VARIOUS LINES

An apparatus for high frequency electrical line communication includes a transmitter, a receiver, a modem (14), and a coupler (16) at each of two or more locations along an electrical line (18). The couplers (16) have capacitive circuits serially connected with an air-core or dielectric-core transformer. The capacitive circuits resonate with the transformer at a preselected frequency. The coupler eliminates noise and is matched to the characteristic impedance of the line at the preselected frequency, which linearizes communication on the line and allows high speed data and voice communication over long distances.

METHOD AND SYSTEM FOR DISTRIBUTION OF WIRELESS SIGNALS FOR INCREASED WIRELESS COVERAGE USING THE POWER LINES

A method and system for the reception, conversion and distribution of wireless communication signals received from such communication devices as PCS, Cellular, and Satellite over AC power lines commonly found within a building, office, home or other structure (101) is disclosed. This invention specifically provides for the distribution of wireless signals in structures where otherwise signal degradation and/or blockage are common. Moreover, this invention takes advantage of the existing AC power lines to create a communication channel avoiding the necessity of rewiring the building or other structure. This invention provides important improvements to the signal coverage and reception of wireless transmitted signals within buildings and other structures (101) and does so in an efficient and cost effective manner.

RECEIVING CIRCUIT FOR A DATA TRANSMISSION SYSTEM

In a system for transmitting data signals from a transmitting station to a receiving station over a transmission line having a variable load impedance caused by one or more load devices connected thereto, a data detection circuit in the receiving station includes a current detector magnetically coupled to the transmission line for detecting current signal components of the data signals therein, a voltage detector directly coupled to the transmission line for generating voltage signal components of the data signals and an output impedance for simultaneously receiving the current signal components and the voltage signal components and developing therefrom an output signal voltage across the impedance, whereby the output signal voltage is generated with a sufficient signal strength to be detectable irrespective of the impedance of the variable load impedance.

SPREAD SPECTRUM POWER LINE COMMUNICATIONS

SPREAD SPECTRUM POWER LINE COMMUNICATION This invention is directed to various improvements in spread spectrum power line communications. One aspect of the invention relates to collision avoidance between various "slave" unit transmitters trying to send messages to a single "master" unit receiver by detecting whether the transmission path is in use and refraining from transmitting if it is. Other aspects of the invention relate to controlling the frequencies of spread spectrum data messages transmitted, the use of gold codes and switching frequency bands on the power line to avoid frequencies where there has been a deterioration of transmission.

A POWER LINE COMMUNICATION APPARATUS AND METHOD OF USING SAME

A communication device for use with a power line forms a bypass device (100) that includes a LV coupler (410), a LV signal conditioner (420), a controller (300), a MV modem (280). A first MV signal conditioner (260), an isolator (240), a second MV signal conditioner (220), and a MV coupler (210). The controller (300) may provide routing functions to give priority to certain types of data, control access to the network, filter data packets, process software upgrades, and provision new subscriber devices. In addition, the controller (300) may monitor, process, and transmit traffic data, measured power data, errors, and other collected data.

COMMUNICATIONS APPARATUS AND A COMMUNICATIONS METHOD

When a primary modulation/demodulation method used by existing power line modems connected to the same power line is changed, a concept of a virtual master is adopted. Specifically, if a power line modem among multiple power line modems connected to a power line (7) judges that the communication quality is difficult to ensure by the current primary modulation method, the power line modem serves as a virtual master in a primary modulation change processing. The virtual master sends a change request command presenting the next primary modulation method to the other power line modems. If a change reject command is not replied from any of the other power line modems having received the change request command, the primary modulation method currently used by the power line modem serving as the virtual master is changed to the next primary modulation method and a change instruction command is sent to the other power line modems. Lastly, the other power lines having received the change instruction ...

POWER LINE COMMUNICATION SYSTEM

This invention relates to a power line communication (PLC) system (8) wherein the power supply line supplies power and also acts as a communications supply line. A receiver (30) is able to detect small changes in the modulated transmitted information and thereby shut down the circuit. The invention is particularly suitable for use where the IEL is remote from the power supply such as, for example, in down hole oil production situations where very long power cables are used.

METHODS AND APPARATUS FOR REJECTION OF INTERFERENCE IN A DIGITAL COMMUNICATIONS SYSTEM

CONTROLLING OF DATA TRANSMISSION VOLTAGE LEVEL BY CUTTING PRINCIPLE IN LOW VOLTAGE NET

Method to control the output signal of signal transmitter in a data system sending data in low voltage net in order to keep the utput signal voltage (UL) constant, when output signal (UL) is taken over coupling unit (50) to the network, whereby the data transmission includes a signal amplifier (20), a signal filter (40), a coupling unit (50) for signal coupling to the network and a source (10) of signal amplifier operating voltage (US). In connection with the signal amplifier (20) there is a signal clipper (30) or a function to clip output signal (UOUT) of signal amplifier (20) and/or to clip or distort the input signal approaching signal amplifier (20) and clipping or distortion being directly or indirectly dependent on the output voltage (UL) of the signal to be sent to the network or on the output current (IOUT) from signal amplifier (20).

A SURVEILLANCE SYSTEM COMPRISING MULTIPLE MONITORING DEVICES IN A SINGLE TRACK

A surveillance system having two or more monitoring devices moving on a single track. The monitoring devices are suitably video cameras but may also include audio monitoring. Power for the monitoring devices, control signals and signals from the monitoring devices are all transmitted on the track. Power is suitably DC and other signals are suitably RF. The system incorporates collision avoidance means to prevent collision between adjacent moving cameras. The collision avoidance means includes hand-over software so that a person can seamlessly scan a region with camera control being passed to adjacent cameras to avoid collision.

TRANSMISSION MEDIUM HAVING MULTIPLE CORES AND METHODS FOR USE THEREWITH

Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can include a plurality of cores for selectively guiding an electromagnetic wave of a plurality of electromagnetic waves longitudinally along each core, and a shell surrounding at least a portion of each core for reducing exposure of the electromagnetic wave of each core. Other embodiments are disclosed.

SPREAD SPECTRUM POWER LINE COMMUNICATIONS WITH GOLD'S CODE

INFORMATION SEPARATION DEVICE

An information separation device having a transformer operating as a separating filter to separate transmitted direct current power and alternating voltage information. The transformer has at least two windings on a first side holding power in reserve. Between these windings a capacitor is serially coupled that transmits information signals. The windings are coupled at their other ends to transmission lines for direct current power and alternating voltage information. The transformer has another winding on the second side that processes received information. Two controllable inverse valves are coupled by their output electrodes between the transmission lines. The control electrodes of the valves are coupled to a load-independent voltage source during a transmission signal.

CONNECTOR AND METHOD OF CONNECTION

The present invention provides a method of coupling a telecommunications signal to a plurality of power cables (15), each cable being connected in a line to a bus-bar (11-13) the method including the steps of selecting one of the cables located substantially in the centre of the line and either coupling the telecommunications signal to the selected cable or coupling the signal to the bus-bar in the vicinity of the selected cable. By "in the vicinity" is preferably meant at or near the selected cable e.g. nearer to the selected cable than to any of the other cables connected to the bus-bar. Where a telecommunications signal is to be connected to a plurality of power cables, one aim is usually to ensure a roughly equal distribution of telecommunications signal power among the power cables. By making the physical connection in the vicinity of one of the central cables in the line, as proposed above, this helps to ensure that the signal power is approximately distributed in as equal away as ...

Ankopplungseinheit zum Ankoppeln von Trägerfrequenzhochspannungsleitungen an Nachrichtengeräte oder Kabel

ANKOPPLUNGSEINHEIT ZUM ANKOPPELN VON TRAEGERFREQUENZHOCHSPANNUNGSLEITUNGEN AN NACHRICHTENGERAETE ODER KABEL MITTELS KOPPLUNGSKONDENSATOREN UND UEBERTRAGERN.

Arrangement for coupling a coaxial cable laid in high-voltage installations to communications equipment

Device for parallel coupling for audio-frequency ripple-control transmitting installations

In order to prevent mains feedback effects on the tone generator (G) in audio-frequency ripple-control installations, the inductance (L) and the series circuit formed by the capacitor (C) of the parallel coupling with the mains impedance (ZN) are connected in parallel with the output terminals (K1) of the audio-frequency generator (G). The inductance (L) is provided with a tap for the audio-frequency voltage or has two DC-isolated windings. The primary winding (W1) is connected directly or, if load-controlled converters are used in the audio-frequency generator (G), by means of a further inductance and/or a further capacitance, to the tone generator (G). A variable capacitance can be arranged in parallel with the primary winding (W1). ...

PROCEDURE FOR THE TRANSMISSION OF BINARY SIGNALS OVER A STRANGE WIRE NET.

PROCEDURE FOR THE TRANSMISSION OF PACKETS.

Switching configuration for the coupling of a transmission unit to a channel.

Procedure and device for the signal transmission between a moved or stationary central processing unit and at least a further moved object.

Data transmission device enables analogue and digital data to be transmitted via coaxial earth cable of high voltage conduit

The data transmission device enables analogue and digital data to be transmitted via a coaxial earth cable (18) of a high voltage conduit. It has a coupling filter (17), a protective unit (15), and a transceiver (14). The transceiver is constructed in accordance with digital subscriber technology. This enables existing analogue transmission devices to be converted at low expense, operated with higher data rates and connected into digital communication networks.

PROCEDURE FOR THE TRANSMISSION OF DATA.

PROCEDURE FOR THE DATA COMMUNICATION OVER AN ELECTRICAL DISTRIBUTED NETWORK AND TRANSMISSION SWITCHING ARRANGEMENT FOR THE EXECUTION OF THE PROCEDURE.

Data communications device using AC distribution network - has filter for suppression of network harmonics within received signal

The data communications device using the standard AC distribution network uses a transmitter converting the data into corresp. current signals supplied to the distribution network and a receiver for reception of the current signals representing data fed in the opposite direction. The receiver has a filter for suppression of network harmonics with an amplitude matched to the frequency characteristic of the harmonics. The filter incorporates a delay stage which delays the input signal in dependence on the network frequency with an adder for subtracting the delayed signal from the input signal for obtaining digital components. ADVANTAGE - Provides full harmonic compensation and noise suppression.

Procedure and device for the achievement and data communication on common lines.

Procedure and device for the achievement and data communication on common lines.

СИСТЕМА РЕТРАНСЛЯТОРОВ СИГНАЛА

Настоящее изобретение относится к решениям системы аналоговых ретрансляторов сигнала общего типа. В частности касается стабильности в системе аналоговых ретрансляторов сигнала.

СПОСОБ ПОДВЕДЕНИЯ И СНЯТИЕ СИГНАЛА С ЦИФРОВЫМИ ДАННЫМИ В ЭЛЕКТРОРАСПРЕДЕЛИТЕЛЬНОЙ СЕТИ ДОМА

Изобретение относится к способу передачи цифровых данных (например, данных Интернет, видео-, аудио-, голосовых и/или других данных) через энергетические системы с помощью технологии PLT (Power Line Telecommunication). Его применение позволяет получить технический результат в виде повышения надежности и скорости передачи цифровых данных, а также увеличение степени охвата помещений в доме (например, квартир в жилом доме) PLT-сигналом с мощностью, достаточной для передачи цифровых данных. Этот результат достигается благодаря тому, что инжекцию цифрового сигнала в сеть электропитания дома вырабатывают на электрическую шину, которая входит в электрораспределительную сеть дома. При этом инжекцию цифрового сигнала осуществляют не менее чем в двух точках электрической шины. Расстояния между точками инжекции цифрового сигнала могут устанавливаться таким образом, чтобы обеспечить необходимую мощность сигнала с цифровыми данными по всей электрораспределительной сети дома, формированной от данной электрической ...

ИНДУКТИВНЫЙ СОЕДИНИТЕЛЬ ДЛЯ СИСТЕМ ПЕРЕДАЧИ ДАННЫХ ПО ЭЛЕКТРИЧЕСКИМ СИЛОВЫМ ПРОВОДАМ

В заявке описывается индуктивный соединитель для обмена сигналами с электрическим проводом. Индуктивный соединитель содержит (а) магнитопровод с проходом, через который пропускается электрический провод, (b) обмотку, намотанную на часть магнитопровода, причем сигналы передаются между обмоткой и электрическим проводом через магнитопровод, (с) электроизолирующий материал, помещенный между обмоткой и магнитопроводом; и (d) сжимаемый материал, помещенный между магнитопроводом и электроизолирующим материалом. Твердость сжимаемого материала меньше твердости электроизолирующего материала.

СИСТЕМА И СПОСОБ МНОГОТОЧЕЧНОЙ ЦИФРОВОЙ ПЕРЕДАЧИ ДАННЫХ ПО ЭЛЕКТРИЧЕСКОЙ СЕТИ

В изобретении описана система двунаправленного обмена данными по электрической сети между головным узлом и множеством пользовательских терминалов, отличающаяся тем, что для предоставления пользователям множества высококачественных услуг предусмотрена возможность низкоскоростной и высокоскоростной передачи информации. Такая система имеет средства для обеспечения множественного доступа к сети с временным, частотным и/или ортогональным частотным уплотнением (МДОЧУ).

СИСТЕМА АВТОМАТИЧЕСКОЙ РЕГУЛИРОВКИ УСИЛЕНИЯ ДЛЯ МНОГОПОЛЬЗОВАТЕЛЬСКИХ СИСТЕМ ЦИФРОВОЙ ПЕРЕДАЧИ ДАННЫХ ПО ЭЛЕКТРИЧЕСКОЙ СЕТИ С ИСПОЛЬЗОВАНИЕМ ОЧУ-МОДУЛЯЦИИ

В изобретении описана система, имеющая множество пользовательских терминалов и головной узел, осуществляющих двунаправленный обмен данными по электрической сети. Система имеет следующие отличительные особенности: осуществление последовательной обработки передаваемых и принимаемых сигналов на каждой несущей и регулировки мощности передачи каждого устройства. Система позволяет обеспечить связь с максимальным числом пользователей, максимизировать пропускную способность, использовать сигналы, поступающие от пользователей, находящихся на различном удалении, как большом, так и малом, исключить переполнение, обеспечить максимальную среднюю мощность в диапазоне, доступном для обмена данными, и минимизировать число битов, необходимых для аналого-цифрового преобразования при приеме.

Радиочастотное устройство связи, способ и система связи

Изобретение относится к энергетике, в частности к радиочастотным устройствам связи для линий электропередач. Радиочастотное (РЧ) устройство связи соединено с шунтовым устройством и РЧ модемом для передачи РЧ сигнала. РЧ сигнал производится между линией электропередач и РЧ модемом посредством шунтового устройства и устройства связи. Шунтовое устройство снабжено клеммой высокого напряжения, подключенной к электрическому проводу линии электропередач и к клемме низкого напряжения. Устройство связи содержит проводник сигнала, подключенный к клемме низкого напряжения шунтового устройства, заземляющий проводник, соединенный с заземлителем, и связующий трансформатор. П. формулы: 23 Фиг.: 8 ...

CIRCUIT ENDPOINT

SYSTEM FOR AUTOMATIC GAIN CONTROL FOR MUCH USER SYSTEMS DIGITAL DATA TRANSMISSION ON ELECTRICAL NETWORK USING ORTHOGONAL - MODULATION

METHOD AND DEVICE FOR TRANSMITTING INFORMATION OVER A COMMUNICATION CHANNEL VARIABLE IMPEDANCE, IN PARTICULAR FOR A SIGNAL CARRIED OVER POWER LINE

Le procédé comprend une conversion numérique/analogique d'un signal numérique modulé par lesdites informations de façon à obtenir un signal analogique initial modulé ayant un facteur de crête supérieur à un, une amplification du signal analogique initial de façon à obtenir un signal modulé amplifié et une transmission sur ledit canal de communication d'un signal analogique de canal modulé issu du signal analogique amplifié modulé. L'impédance du canal de communication étant susceptible de varier au cours de ladite transmission, le procédé comprend en outre au moins une détermination (60) au cours de ladite transmission d'un taux d'écrêtage (TCR) du signal amplifié sur au moins un intervalle temporel et un ajustement (61, 62) du niveau du signal analogique initial en fonction dudit taux d'écrêtage déterminé.

PROCESS AND EQUIPMENT FOR the TRANSFER OF SIGNALS CONCERNING ELECTRIC MACHINE PROVIDED With a THREE-PHASE CABLE Of FOOD

DEVICE OF COMMUNICATION FOR the TRANSMISSION OF ALARM SIGNALS AND CALL COMING From INSTALLATION Of SUBSCRIBE TOWARDS an AGENCY OF the DISTRIBUTOR

RECEPTEUR DE TRANSMISSION DE DONNEES A LARGE BANDE

L'invention concerne un appareil destiné à recevoir des informations, en évitant les perturbations dues à des harmoniques d'un signal permanent. Les données sont transmises sous forme de paires d'impulsions représentant chacune un bit La durée des impulsions, l'intervalle qui les sépare et la fréquence porteuse sont choisis de manière telle que les harmoniques d'un signal permanent sur la ligne de transmission ne puissent apporter aucune perturbation la réception des données. L'invention s'applique notamment à la transmission des données sur les lignes de transport d'énergie.

CIRCUIT Of ASSIGNMENT Of a TRANSMISSION CHANNEL ON the Electrical communication

L'invention concerne un circuit (1) d'affectation d'un canal à une transmission entre au moins deux modems utilisant le réseau électrique comme support de transmission d'un flux de données binaires (TxD), comportant, côté réception, un dispositif (11) de sélection d'un canal choisi pour son meilleur niveau de transmission en fonction de l'énergie reçue sur plusieurs canaux de transmission, la transmission s'effectuant, au moins au début de chaque communication, sur plusieurs canaux.

PROCESS OF TRANSMISSION OF BINARY DIGITS BY A FOREIGN NETWORK

PROCESS OF REGROUPING OF STATIONS TO OPTIMIZE the DIFFUSION Of a FLOW BROADCAST/MULTICAST

La présente invention se rapporte à un procédé de transmission d'au moins un flux de données d'une station à N stations destinataires, N>2, les stations, reliées entre elles par des liens, appartiennent à un même réseau logique et mettent en œuvre lors de la transmission une modulation multi porteuse, chaque lien entre la station et une des N stations destinataires étant associé à une table contenant des ordres de constellations associés respectivement aux sous porteuses, ces ordres étant déterminés selon un ou plusieurs critères de qualité du lien, ledit procédé consistant, : - à regrouper les N stations en K groupes, K≥1, selon un critère de similarité entre tables et à déterminer, par groupe, une table commune, - à transmettre un flux par la station, sous forme de K flux vers respectivement les K groupes en répartissant les données du flux sur les sous porteuses selon la table commune du groupe.

MODULAR OUTLET

SIGNAL REPEATER SYSTEM

REPEATERS SHARING A COMMON MEDIUM FOR COMMUNICATIONS

A system (100) for communications on a bi-directional medium includes a first repeater (705), a second repeater (710), a third repeater (715) and a fourth repeater (720), each of which is coupled to the medium. The first repeater and the second repeater communicate with each other on a first band for transmission from the first repeater to the second repeater, and on a second band for transmission from the second repeater to the first repeater. The second repeater and the third repeater communicate with each other on a third band for transmission from the second repeater to the third repeater, and on a fourth band for transmission from the third repeater to the second repeater. The third repeater and the fourth repeater communicate with each other on the second band for transmission from the third repeater to the fourth repeater, and on the first band for transmission from the fourth repeater to the third repeater. © KIPO & WIPO 2007 ...

통신 네트워크에서 통신 모드를 조정하기 위한 방법 및 장치

... 본 개시내용의 양태들은, 예를 들어, 와이어의 표면 상에서 도파관 시스템에 의해 발생된 전자기파의 전파에 부정적인 영향을 미치는 상태를 검출하고, 상기 상태에 의해 야기된 부정적인 영향들을 줄이기 위해 상기 도파관 시스템에 의해 발생된 전자기파의 특성을 조정하는 도파관 시스템을 포함할 수 있다. 또한 다른 실시예들이 개시된다.

meio de transmissão que tem múltiplos núcleos e métodos para uso com o mesmo.

Metod och arrangemang för kombinerad data och kraftöverföring på kommunikationsbussar

A RADIO FREQUENCY COUPLER, COUPLING SYSTEM AND METHOD

A radio frequency (RF) signal coupler (120) for cooperative engagement with a shunt device (110) and for cooperative engagement with an RF mode. The shunt device has a high voltage terminal (112) connected to an electrical cable of the power network (111) and a low voltage terminal (114). The coupler comprises a signal lead (123) connected to the low voltage terminal of the shunt device, a ground lead (132) connected to earth ground, and a coupling transformer (130). The coupling transformer comprises a ferrite ring (124), a multiple turn primary winding (126) having a first end and a second end, the first end being connected to the signal lead and the second end being connected to the ground lead, and a multiple turn secondary winding (125) having two terminals for providing the RF signal to th RF modem. The ratio of turns of the secondary winding to the turns of the primary winding is at least two to one.

SPREAD SPECTRUM-TIME DIVERSITY COMMUNICATIONS SYSTEMS AND TRANSCEIVERS FOR MULTIDROP LOCAL AREA NETWORKS

Messages are transmitted on pairs of frequencies that are orthogonal, that is the frequencies have no least common denominator. A message is transmitted on the first of the pair of frequencies (F1, F2) and, simultaneously, its compliment is transmitted on the second of said pair of frequencies (F1, F2). The message is then retransmitted on another pair of orthogonal frequencies. A processor is provided for collecting information on the data error rates at each receiver. This information is periodically transmitted to a central frequency controller which collects this error information and determines the error rates on the frequencies being used.

POWER LINE COMMUNICATIONS

Apparatus for extracting communications signals from power lines, which lines are arranged such that leakage of signals occurs between them. The apparatus receives a signal from each of at least two of the lines (BLUE, RED, YELLOW) and combines the received signals so as to increase the ratio of wanted signal to interference plus noise S/(I+N). Preferably the combining is achieved by weights (WB, WR, WY) and a summer (400). The weights phase shift and scale the received signals in amplitude. The apparatus can also be used for transmitting in the downstream direction.

Transmitter/receiver circuit for signal transmission over power wiring

A system transmits and receives control signals for various types of indoor devices using the existing power wiring in houses and buildings. The transmitter section of the power wiring transmission system is provided with a circuit in which the output of a sine wave oscillator is fed to an emitter-follower through a photocoupler and this output is then fed to the indoor power distribution line through a series resonance circuit after stepping down with a transformer; and the receiving section is provided with a circuit in which the signal from the distribution line is fed to a parallel resonance circuit after passing through a series resonance circuit. Moreover, the input and output sections are resistor terminated.

Telemetry circuit with noise immunization

A telemetry system for use with AC power lines, comprising a pulse transmitter connected to the lines for generating pulses on the power lines only in a selected portion of each full cycle of the power line voltage waveshape. The system further comprises a pulse receiver including first means for counting pulses in the selected portion and second means for counting pulses in another portion of each full cycle. The two counts are compared (one is subtracted from the other) over a plurality of full cycles to produce a net pulse count. Since the noise signals appear throughout the cycles and, over a sufficient number of full cycles, are present in substantially equal numbers in both portions, the subtraction of the two counts essentially eliminates the noise pulses. Any remaining pulses are those produced by the transmitter and may be processed as needed, and false tripping due to noise signals is avoided.

Method for transmitting information over an alternating current power line through a plurality of frequency orthogonal subchannels

One embodiment of the present invention is a method for transmitting information over an AC power line. A frequency channel for transmitting the information is selected and divided into a plurality of frequency orthogonal subchannels. Each of the frequency orthogonal subchannels is tested to determine a value of a transmission characteristic, which in turn is used to determine a transmission bit density for the frequency orthogonal subchannel. The information is divided into a plurality of data subblocks. Each data subblock corresponds to one of the frequency orthogonal subchannels, and the size of each data subblock is determined based on the corresponding transmission bit density. The data of each data subblock is modulated for transmission through the corresponding frequency orthogonal subchannel. Each data subblock is transmitted approximately concurrently through the corresponding frequency orthogonal subchannel.

Signal transmission apparatus and signal transmission method

A signal transmission apparatus of the invention comprises: a correlator 12 for shaping a spectrum of a signal; and a precoder 12 disposed on a previous stage of the correlator and including an adder which subtracts an output signal of a feedback filter from an input signal, a modulo arithmetic unit which inputs an output signal of the adder and executes modulo arithmetic operation, and the feedback filter which inputs an output signal of the modulo arithmetic unit and is provided with a transfer function obtained by subtracting 1 from a transfer function of the correlator. The correlator may be IIR filter means having a desired notch characteristic. By disposing a correlator which can freely shape a transmission signal spectrum containing a deep notch and suppress only a specified band on a receiving side, the suppression of an external noise can also be realized.

CIRCUIT DEVICE AND ELECTRONIC APPARATUS

A circuit device includes: a transmitting circuit that performs transmission of a signal by current-driving signal lines in a transmission period; a receiving circuit that receives a signal that a transmitting circuit of a communication partner has transmitted by current-driving the signal lines, in a reception period that is different from the transmission period; and terminating resistor circuits that can be connected to the signal lines, and whose resistance value in the transmission period is set to a value that is smaller than a resistance value in the reception period.

Noise Suppression Circuit

The present invention realizes a noise suppression circuit capable of suppressing noise in a wide frequency range even if impedance fluctuates on the input side or the output side. A noise suppression circuit has first and second inductors (L 1, L 2 ) inserted in series in a first conductive line ( 3 ), and a series circuit ( 15 ) configured to have a third inductor (L 3 ) and a first capacitor (C 1 ) connected in series. The third inductor (L 3 ) side is connected between the first and second inductors (L 1, L 2 ). The noise suppression circuit further includes a second capacitor (C 2 ) whose one end is connected to the first conductive line ( 3 ) on the first inductor (L 1 ) side and whose other end is connected between the third inductor and the first capacitor in the series circuit ( 15 ).

Method and Device for Transmitting Information Over a Communication Channel with Variable Impedance

A method includes digital/analog conversion of a digital signal modulated by information to provide a modulated initial analog signal having a crest factor greater than one, and amplification of the initial analog signal to provide an amplified modulated signal. A modulated channel analog signal derived from the modulated amplified analog signal is transmitted over a communications channel, with impedance of the communications channel varying during the transmission. The method further includes at least one determination during the transmission of a peak-clipping rate of the amplified analog signal over at least one time interval, and an adjustment of a level of the initial analog signal as a function of the determined peak-clipping rate.

A COMMUNICATION METHOD AND APPARATUS OF NETWORK MANAGEMENT SYSTEM

Lighting system communications apparatus and method

A communications apparatus and techniques are presented for communicating with ballasts or drivers through lighting system power connections in which the power connections are energized with low levels of power to power communications components in the ballast/drivers while the light sources are off and low frequency AC communications signals are transmitted through the power connections.

Power line communication apparatus and noise detection method thereof

A power line communication apparatus and a noise detection method that are capable of detecting noises periodically generated without extending the dynamic range of an A/D converter used therein. The power line communication apparatus according to an embodiment of the present invention includes: a power detection unit that detects powers in communication slots used for transmitting and receiving data via a power line; a channel (transmission line) estimation unit that estimates the condition of a transmission channel on the basis of a difference between an average power through unused slots that are not assigned for transmitting and receiving the data among the communication slots and instantaneous powers regarding the unused slots; and a periodicity determination unit that detects a noise that is periodically generated on the basis of the estimated condition of the transmission channel and an alternating-current cycle in the power line.

Transmitting device, receiving device and communication method for an ofdm communication system with new preamble structure

A transmitting device, a receiving device, and a communication method for transmitting and receiving data modulated on frequency subcarriers of an OFDM communication system. An OFDM burst includes a preamble part and payload data part, whereby the preamble includes a section of pilot symbols mapped onto every n-th frequency subcarrier and signaling data mapped onto the frequency subcarriers between the frequency subcarriers with the pilot symbols. A first channel estimation on the basis of the received pilot symbols is performed, the result of which is used to reconstruct the entire section of the received preamble as a training pattern for an accurate channel estimation, which is used for a channel equalization of the received payload part.

Communication method and apparatus of network management system

The invention provides a communication system for a power distribution network, which comprises at least two distribution domains, each of the domains includes one management device and at least one electrical device. The management device is configured as connected with the electrical devices within its domain, and is further configured as capable of collect information from the electrical devices. The system also comprises a communication link, which is arranged for the management devices of different domains, and the management devices are configured as capable of directly exchanging information through the link.

Method for transmitting a signal from a transmitter to a receiver in a power line communication network, transmitter, receiver, power line communication modem and power line communication system

A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well.

TRANSMITTING DEVICE, RECEIVING DEVICE AND COMMUNICATION METHOD FOR AN OFDM COMMUNICATION SYSTEM WITH NEW PREAMBLE STRUCTURE

A transmitting device, a receiving device, and a communication method for transmitting and receiving data modulated on frequency subcarriers of an OFDM communication system. An OFDM burst includes a preamble part and payload data part, whereby the preamble includes a section of pilot symbols mapped onto every n-th frequency subcarrier and signaling data mapped onto the frequency subcarriers between the frequency subcarriers with the pilot symbols. A first channel estimation on the basis of the received pilot symbols is performed, the result of which is used to reconstruct the entire section of the received preamble as a training pattern for an accurate channel estimation, which is used for a channel equalization of the received payload part. 17-. (canceled)8. A receiver , comprising circuitry configured to:receive signals modulated on frequency subcarriers of an orthogonal frequency division multiplexing (OFDM) communication system and receive OFDM bursts including a preamble part and a payload data part, the preamble part including signaling data and pilot symbols; the pilot symbols mapped onto pilot subcarriers that are every nth frequency subcarrier of the frequency subcarriers, where n=2 or more, and', 'the signaling data mapped onto signaling subcarriers that are frequency subcarriers that are between the pilot subcarriers, such that portions of the signaling data and the pilot symbols are transmitted in a same section of the preamble and at a same time;, 'receive the preamble part, the preamble part including a section includingperform a first channel estimation based on the pilot symbols, wherein the pilot symbols form a cross-correlation pattern and a distance between adjacent pilot subcarriers, in the frequency dimension, is set so that interpolation by the receiver is able to predict amplitude attenuation and phase shift for the signaling data; andperform a first channel equalization based on the first channel estimation.9. The receiver according to claim ...

Interference Control in a Broadband Powerline Communication System

A broadband powerline communication system is disclosed which makes use of knowledge of the spectrum characteristics of a local radio environment in order to improve the performance of the system. A determination is made of the spectrum characteristics of a radio environment in the vicinity of the broadband powerline communication system that is transmitting data on modulated carrier frequencies. Certain ones of the carrier frequencies otherwise used by the broadband powerline communication system may be masked (i.e., not used) by all or part of the broadband powerline system in order to avoid interference based on the determination. In various embodiments, the spectrum characteristics are determined 1) in advance and used to compile a configuration database comprising frequency masking parameters; 2) by monitoring the local radio environment using the transmitter/receiver nodes of the system; or 3) based upon receipt of an indication from a conflicting user that the user is experiencing interference. Various combinations of these spectrum characteristic determination techniques may also be used.

POWER LINE SIGNAL COUPLER

A main power line (+ and − lines) is coupled to a power supply, for example a car battery, grounded to a vehicle chassis. Positive and negative main power lines are coupled to a power line gateway module, and spliced to carry power for a segment, until receiving, by splices, RF power line communcations. The main power lines, now carrying power and RF power line communications are then coupled to remote modules. RF power line communication carries signal from the power line gateway module to a impedance matching network or a transformer are used to match impedances. 1. A method of configuring an electrical circuit comprising: selecting a length and gauge of power wire to achieve a targeted inductance based on an impedance of said circuit and a resistance of said circuit.2. A method according to claim 1 , wherein said targeted inductance is approximately 1 microhenry.3. A method according to claim 1 , said impedance approximately 40 ohms.4. A method according to claim 1 , said resistance approximately 120 ohms. This application claims the benefit of co-pending U.S. Provisional Patent Application Ser. No. 62/360,785, filed 11 Jul. 2016.In electrical communications, as with any communications generally, clarity is key. Clarity may be difficult to achieve in a variety of environments in which clear communications are critical. For instance, communications at radio frequencies over direct current (DC) power busses is known. In some instances, however, reliability of such communications is interrupted by environmental noise and/or voltage spikes occurring on the power bus. Accordingly, the art of communications over or along a DC power bus may be enhanced by better filtering techniques.Inductors are placed in power lines to add impedance to the lines. In this manner, RF signal can be carried by the lines.A filter provides enhanced filtering of transient and spurious signals which may otherwise interfere with a communication signal. Such filter may be advantageously used in ...

APPARATUS FOR CONTROLLING OPERATIONS OF A COMMUNICATION DEVICE AND METHODS THEREOF

Aspects of the subject disclosure may include, for example, a transmission system having a coupling device, a bypass circuit, a memory and a processor. The coupling device can facilitate transmission or reception of electromagnetic waves that propagate along a surface of a transmission medium. The memory can store instructions, which when executed by the processor, causes the processor to perform operations including restarting a timer to prevent the bypass circuit from disabling the transmission or reception of electromagnetic waves by the coupling device. Other embodiments are disclosed. 1. A method , comprising:transmitting, by a first device, first electromagnetic waves along an outer surface of a transmission medium, wherein the first electromagnetic waves are directed to a second device, and wherein the first electromagnetic waves operate at a first carrier frequency;detecting, by the first device, a fault in operations of the second device;identifying, by the first device, a third device that utilizes the transmission medium for receiving second electromagnetic waves at a second carrier frequency, wherein the first carrier frequency differs from the second carrier frequency; andtransmitting, by the first device, adjusted first electromagnetic waves along the outer surface of the transmission medium directed to the third device, wherein the adjusted first electromagnetic waves propagate along the outer surface of the transmission medium traversing the second device, and wherein the adjusted first electromagnetic waves operate at the second carrier frequency.2. The method of claim 1 , wherein the fault is detected responsive to a failure to receive a message from the second device according to a predefined protocol.3. The method of claim 1 , wherein the fault is detected responsive to a failure to receive a message from the second device during a predefined time period.4. The method of claim 1 , wherein the fault comprises a failure to reset a timer for ...

Communication system, communication device, power supply device, and vehicle

A communication system, a communication device, a power supply device, and a vehicle are provided, which can suppress occurrence of communication abnormality while suppressing noise applied to a power supply line to be lower than a predetermined upper limit value of a standard, in communication such as inband communication in which a vehicle and a power supply device are connected to each other via a charging cable containing the power supply line and a control line, and a communication signal is transmitted and received using the control line as a medium. A power supply device 2 reads setting relating to an output for each frequency which is previously stored in a memory 221 b , and performs a mapping process of adjusting, based on the read setting, an output waveform relating to transmission of the communication signal to an amplitude previously set for each frequency. Then, the power supply device 2 executes inverse fast Fourier transform on the mapped communication signal to convert the communication signal represented as digital data on a frequency domain into digital data on a time domain, and converts the digital signal into analog signal to be transmitted.

Method for synchronized communication in access network applied g.hn technology thereto, access network multiplexer, access network terminal and access network system using the same

The present invention relates to a method for synchronized communication in access network applied G.hn technology thereto, access network multiplexer (GAM), an access network terminal (GNT), and access network system using the same, which comprises a plurality of domain masters that communicate with the access network terminal; a clock controller controlling at least one of speed or output of the signal that the domain master transmits; and an access network terminal which communicates with the access network multiplexer (GAM) connecting the domain masters and G.hn specification physical layer, and at least one of speed or output of the signal that the access terminal transmits is controlled by the clock control unit. The present invention provides efficient data transmission and high bandwidth to service subscribers with applying G.hn technology to conventional coaxial cable or telephone line, thereby reducing crosstalk occurred in data transmission.

MULTI-HOP COMMUNICATION SYSTEM, AND SLAVE UNIT

A master unit and a plurality of slave units perform a multi-hop communication. The plurality of slave units include hybrid slave units are configured to select at least one of wireless communication and power line carrier communication. One hybrid slave unit includes a function of reporting, to the other hybrid slave unit in which a hop number in the power line carrier communication between the one hybrid slave unit and the other hybrid slave unit is one, the minimum route cost when the wireless communication is used for a channel on an upper side. The one hybrid slave unit includes a function of adopting the power line carrier communication when a route cost reported by the other hybrid slave unit is smaller than the minimum route cost of the one hybrid slave unit, and otherwise adopting the wireless communication. 1. A multi-hop communication system comprising a master unit and a plurality of slave units , the multi-hop communication system being configured to permit , when information is transmitted between the master unit and a slave unit of the plurality of slave units , at least another slave unit of the plurality of slave units to relay communication ,wherein the plurality of slave units comprises at least one hybrid slave unit configured to select at least one of a plurality of communication methods that have arrival ranges of information different from each other.2. The multi-hop communication system according to claim 1 , wherein the hybrid slave unit is configured to select at least one of a first communication method and a second communication method as the plurality of communication methods claim 1 ,the first communication method being wireless communication by a radio wave as a transmission medium,the second communication method being power line carrier communication by a power line as a transmission medium.3. The multi-hop communication system according to claim 2 ,wherein at least one hybrid slave unit comprises a plurality of hybrid slave units, ...

TRANSMISSION MEDIUM HAVING MULTIPLE CORES AND METHODS FOR USE THEREWITH

Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can include a plurality of cores for selectively guiding an electromagnetic wave of a plurality of electromagnetic waves longitudinally along each core, and a shell surrounding at least a portion of each core for reducing exposure of the electromagnetic wave of each core. Other embodiments are disclosed. 1. A transmission medium , comprising:a plurality of cables bundled together in the transmission medium, each cable of the plurality of cables comprising a core;a material surrounding at least a portion of each core of the plurality of cables, wherein each core is configured to enable an electromagnetic wave to be bound to the core rather than the material, wherein the electromagnetic wave has an electric field intensity profile that is substantially concentrated within the material, and wherein the material reduces exposure of the electromagnetic wave to an environment; andan absorbing material coupled to the core of each cable that absorbs a portion of the electromagnetic wave to mitigate cross-talk between the plurality of cables.2. The transmission medium of claim 1 , wherein each core of the plurality of cables comprises a conductor having an insulation layer disposed between the conductor and the material.3. The transmission medium of claim 2 , wherein the insulation layer has a first dielectric constant claim 2 , wherein the material has a second dielectric constant claim 2 , and wherein the first dielectric constant exceeds the second dielectric constant.4. The transmission medium of claim 2 , wherein the insulation layer comprises a high density dielectric material claim 2 , and wherein the material comprises a dielectric foam.5. The transmission medium of claim 2 , wherein the electromagnetic wave is bound to the insulation layer.6. The transmission medium of claim 1 , wherein the material disposed on each core of ...

SUPPRESSION OF INTERFERENCE IN POWER AND COMMUNICATIONS SIGNALS

A method of suppressing interference in a communication sent over a channel includes assessing characteristics of channel-induced distortion in a channel, and applying pre-distortion to a signal sent over the channel. The pre-distortion is based on the assessed characteristics of the channel-induced distortion. 1. A method of suppressing interference in a communication sent over a channel , comprising:assessing one or more characteristics of channel-induced distortion in a channel; andapplying pre-distortion to a signal sent over the channel, wherein the pre-distortion is based on at least one of the assessed characteristics of the channel-induced distortion.2. The method of claim 1 , wherein the applied pre-distortion suppresses one or more images in the channel.3. The method of claim 2 , wherein at least one of the suppressed images is harmonically related to another signal in the channel.4. The method of claim 2 , wherein at least one of the suppressed images is a replica of a secondary signal in the channel.5. The method of claim 1 , wherein the applied pre-distortion at least partially counteracts the channel-induced distortion.6. The method of claim 1 , wherein assessing one or more characteristics of channel-induced distortion in a channel comprises:sampling an idle-channel signal; andmodeling the channel-induced distortion in the channel based on the samples of the idle-channel signal.7. The method of claim 1 ,wherein assessing one or more characteristics of channel-induced distortion in a channel comprises determining an amplitude modulation envelope associated with the channel-induced distortion, andwherein applying the pre-distortion to the signal sent over the channel comprises applying a pre-distortion envelope, wherein the pre-distortion envelope is or approximates an inverse of the amplitude modulation envelope associated with the channel-induced distortion.8. The method of claim 1 , wherein the channel-induced distortion comprises amplitude ...

Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium

Aspects of the subject disclosure may include, for example, a system for detecting an accumulation of a liquid on a transmission medium that may interfere with the propagation of guided electromagnetic waves on a surface of the transmission medium, and directing a device to remove at least a portion of the liquid accumulating on the surface of the transmission medium to mitigate the interference. Other embodiments are disclosed.

Method and apparatus for surveying remote sites via guided wave communications

Aspects of the subject disclosure may include, for example, a surveying system operable to receive a plurality of electromagnetic waves via a guided wave transceiver that include environmental data collected via a plurality of sensors at a plurality of remote sites. Weather pattern data is generated based on the environmental data. Other embodiments are disclosed.

Efficient Fairness Allocation in Powerline CSMA/CA Protocols

Transmission over a communication channel using carrier sense multiple access collision avoidance (CSMA/CA) may be performed by determining for each frame if the communication channel is busy after a backoff time proportional to a randomly generated number within a contention window (CW). When the channel is not busy, a frame of data may be transmitted. When the channel is busy, the device may periodically determine if the communication channel is busy after subsequent backoff times. The value of CW is adjusted for each subsequent backoff time using a fairness protocol, in which the value of CW is increased until the value of CW reaches a maximum CW value; and then the value of CW is held until a fairness number of backoff repetitions reaches a fairness threshold; then the value of CW is reduced incrementally until the value of CW reaches a minimum CW value.

System for transmitting information between circuits

A system for transferring information from a first circuit to a second circuit includes first and second isolation elements coupled between the first circuit and the second circuit. A first transient filter is located on the second circuit and coupled to the first isolation element. A second transient filter is located on the second circuit and coupled to the second isolation element. A first ground is located on the first circuit, and a second ground is located on the second circuit. The first ground electrically floats relative to the second ground.

Signal transmitting apparatus and image forming apparatus

A signal transmitting apparatus includes a first line that is provided in one of plural layers of a board and transmits a signal by superimposing the signal on an electric power line that supplies electric power; a coupling section in which the electric power line is coupled to the first line and the first line is branched; plural second lines that branch off in the coupling section and are provided in another layer different from the one layer; and a conductive layer that is provided between the one layer and the other layer. The conductive layer has an opening that encompasses the coupling section in plan view, and the coupling section has a coupling line that has a larger width than the first line and plural through-holes that connect the coupling line and the plural second lines through the opening of the conductive layer.

SUPPRESSION METHOD FOR STRONG INTERFERENCE NOISE OF CARRIER CHANNEL OF POWER LINE AND CIRCUIT STRUCTURE THEREOF

A suppression method for strong interference noise of power line carrier channel is based on the processing process to carrier signals transmitted in standardized frequency interval among power line transmission regional area. According to the situation of frequency lead or lagging carrier of strong interference noise, the pending signals are respectively transmitted to a first suppression circuit () of which the frequency of strong interference noise signal is lower than the frequency of carrier signal, and a second suppression circuit () of which the frequency of strong interference noise signal is higher than the frequency of carrier signal through split-flow processing channel module to process the amplitude limiting signal, and then output signals of the first suppression circuit () and second suppression circuit () are conducted with differential mixing and output to complete the noise reduction process. Regardless of any position of strong interference noise and carrier in channel, the suppression of strong interference noise of power line can be realized by this method. In the major premise of the weak carrier signal not being suppressed, this method has realized that the strong interference noise is effectively attenuated. 1. A suppression method for strong interference noise of power line carrier channel , is based on the processing to carrier signals transmitted in standardized frequency interval among power line transmission regional area , comprising:A. The carrier signal extracted from the receiving point is introduced into the high-pass filter (GH), eliminating the interference signal within lower limit of frequency interval mixed in carrier signal, so as to obtain the mixed signal higher than lower limiting value of frequency interval, which mixes strong interference noise signal and carrier signal;{'b': '1', 'B. The mixed signal is conducted with amplitude limiting through a nominal level amplitude limiting circuit (), so as to obtain the mixed ...

LINE CURRENT DIFFERENTIAL PROTECTION METHOD AND SYSTEM USING BROADBAND POWER LINE CARRIER OVER HIGH VOLTAGE TRANSMISSION LINES

A method and system for connecting to line protection relays and providing a communications channel between a first end and a second end of high voltage transmission lines for digital Line Current Differential Protection are disclosed. At each of the first end and the second end of the high voltage transmission lines, a Broadband Power Line Carrier (BPLC) gateway device is connected to the line protection relay. The BPLC gateway has a coupling device to physically attach to the line and is configured to transmit and receive data communications over the high voltage transmission lines so as to allow the protection relays to communicate with each other via the existing high voltage transmission lines. 1. A method for connecting to line protection relays and providing a digital communications channel between a first end and a second end of high voltage transmission lines for Line Current Differential Protection (LCDP) , wherein the line protection relays comprise a first protection relay at the first end and a second protection relay at the second end , said method comprising:connecting a first gateway device to the first protection relay and connecting a second gateway device to the second protection relay, the first gateway device and the second gateway device configured to communicate with each other over the high voltage transmission lines so as to provide the communications channel between the first protection relay and the second protection relay.2. The method according to claim 1 , wherein each of the protection relays is a digital relay over existing serial and fiber interfaces connecting between the first end and the second end.3. The method according to claim 1 , wherein the first gateway device and the second gateway device each comprises a Broadband Power Line Carrier (BPLC) device claim 1 , the BPLC device comprising a coupling device configured to transmit communication signals to the high voltage transmission lines and to receive communication signals ...

Method and apparatus for power line communications distortion compensation

A method and apparatus for harmonic distortion compensation in power line communications. In one embodiment, the method comprises analyzing a waveform generated by a transmitter of a power line communications transceiver (PLCT), wherein the waveform is analyzed to determine harmonic information for one or more harmonics of a carrier waveform of the PLCT; computing, based on the harmonic information, one or more harmonic compensation coefficients; and pre-distorting, based on the one or more harmonic compensation coefficients, the carrier waveform such that the one or more harmonics are reduced below a threshold.

DEVICE FOR POWER LINE COMMUNICATION, METHOD FOR TRANSMITTING SIGNALS, AND METHOD FOR RECEIVING SIGNALS

A device for power line communication is provided, including a transmitter adapted to transmit signals on at least two of a plurality of power line transmission paths of a power line network; a sensor adapted to determine one or a plurality of reflection parameters of one of the plurality of power line transmission paths; and a transmission impedance matching unit adapted to match the output impedance of at least two output ports of the device which each couple to one of the plurality of transmission paths to the impedance of the at least two of the power line transmission paths based on the one or the plurality of reflection parameters. Further, a device including a corresponding reception impedance matching unit is provided and corresponding methods for transmitting and receiving signals. 1. A device for power line communication , the device comprising:a multiple-input-multiple-output (MIMO) transmitter configured to concurrently transmit signals via a first output port coupled to a first power line transmission path and a second output port coupled to a second power line transmission path, the first and second power line transmission paths included in a plurality of power line transmission paths of a power line network; anda transmission impedance matching circuit configured to identically match, based on at least one reflection parameter of at least one of the first and second power line transmission paths, a first output impedance of the first output port to a first impedance of the first power line transmission path and a second output impedance of the second output port to a second impedance of the second power line transmission path.2. The device according to claim 1 , further comprising:a MIMO receiver configured to concurrently receive signals via a first input port coupled to the first power line transmission path and a second input port coupled to the second power line transmission path; anda reception impedance matching circuit configured to match, ...

METHODS FOR CANCELING INTERFERING WIRELESS SIGNALS IN CABLE CUSTOMER PREMISES EQUIPMENT DEVICES AND OUTSIDE PLANT

A noise reduction device for use with a cable signal distributed by an outside plant of a cable system. The device includes an antenna and a signal processing system. The outside plant receives an interfering radio frequency (“RF”) signal generated by one or more external wireless signal sources and combines the interfering RF signal with the cable signal to produce a noisy cable signal. The antenna receives the interfering RF signal as a copy signal. The signal processing system modifies the copy signal to produce a processed copy signal, and combines the noisy cable signal and the processed copy signal to produce a combined signal. The signal processing system also monitors error rate values of the combined signal, and adjusts the copy signal such that the copy signal at least partially cancels the interfering RF signal in the combined signal thereby reducing the error rate values of the combined signal. 1. A device for use with a cable signal distributed by an outside plant of a cable system , and an interfering radio frequency (“RF”) signal generated by one or more external wireless signal sources and received by the outside plant , the outside plant combining the interfering RF signal with the cable signal to produce a noisy cable signal , the device comprising:an antenna configured to receive the interfering RF signal as a copy signal; anda signal processing system comprising:a signal processing chain configured to receive the noisy cable signal and the copy signal,at least one signal adjustment component configured to modify at least one signal parameter of the copy signal to produce a processed copy signal, the signal processing chain being configured to combine the noisy cable signal and the processed copy signal to produce a combined signal,an error detection component configured to determine error rate values for the combined signal,a monitoring component configured to monitor the error rate values of the combined signal, and determine when the error rate ...

Transceiver front-end for communication over power lines

Various circuits and methods are disclosed for communications over AC power lines. In one example embodiment, a power line communication circuit includes an analog front end having a data-coupling circuit configured to communicatively couple communication signals to and from a set of AC power lines in the power line communication system. The analog front end also includes a noise reduction circuit that is coupled to the data-coupling circuit. The noise reduction circuit is configured to mitigate noise within a communication frequency band of the communication signals by filtering, from the communication signals, at least one frequency that is located outside of the communication frequency band and that has harmonics located within the communication frequency band and to demodulate data from the communication frequency band of the filtered communication signals.

POWER LINE SIGNAL COUPLER

A main power line (+ and − lines) is coupled to a power supply, for example a car battery, grounded to a vehicle chassis. Positive and negative main power lines are coupled to a power line gateway module, and spliced to carry power for a segment, until receiving, by splices, RF power line communications. The main power lines, now carrying power and RF power line communications are then coupled to remote modules. RF power line communication carries signal from the power line gateway module to a impedance matching network or a transformer are used to match impedances. 1. A method of configuring an electrical circuit comprising: providing a resonant wire segment between a power source and a power line bus.2. A method according to claim 1 , wherein said resonant wire section is between approximately 0.5 and 3 meters in length.3. A method according to claim 1 , wherein said resonant wire section is between approximately 1 and 1.5 meters in length. This application is a continuation-in-part of co-pending U.S. patent application Ser. No. 15/646,266, filed 11 Jul. 2017 (now U.S. Pat. No. 10,128,906) which claims the benefit of U.S. Provisional Patent Application Ser. No. 62/360,785, filed 11 Jul. 2016.In electrical communications, as with any communications generally, clarity is key. Clarity may be difficult to achieve in a variety of environments in which clear communications are critical. For instance, communications at radio frequencies over direct current (DC) power busses is known. In some instances, however, reliability of such communications is interrupted by environmental noise and/or voltage spikes occurring on the power bus. Accordingly, the art of communications over or along a DC power bus may be enhanced by better filtering techniques.Inductors are placed in power lines to add impedance to the lines. In this manner, RF signal can be carried by the lines.A filter provides enhanced filtering of transient and spurious signals which may otherwise interfere with a ...

Method for transmitting a signal via a power line network, transmitter, receiver, power line communication modem and power line communication system

A method for transmitting signals over a power line network, wherein within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each channel including a respective feeding port of at least one transmitter and the respective receiving port of the at least one transmitter and transmitter including at least two feeding ports. The method: determines a channel characteristic of each of the channels; applies a feeding port selection criterion based on the channel characteristic; and selects an excluded feeding port among the at least two feeding ports based on the feeding port selection criterion, wherein the excluded feeding port is not used during further communication. A corresponding power line communication modem can implement the method.

Splitter

A splitter includes, in parallel between trunk terminals and branch terminals, a signal branching circuit that blocks distributed power and passes a PLC communication signal and a power branching circuit that blocks the communication signal and passes the distributed power. In the signal branching circuit, impedance viewed from the branch terminal side is matched with characteristic impedance of a power line and impedance viewed from the trunk terminal side is higher than impedance viewed from the branch terminal side, in the frequency band of the communication signal. In the power branching circuit, input/output impedance is set to be sufficiently higher than the impedance of the signal branching circuit viewed from the trunk terminal side, in the frequency band of the communication signal.

TRANSMISSION MEDIUM AND METHODS FOR USE THEREWITH

Aspects of the subject disclosure may include, for example, a cable can include a core, a plurality of strips of cladding disposed on the core, and a coupler that facilitates inducing electromagnetic waves that propagate along the core, where a first dielectric constant of the core exceeds a second dielectric constant of each strip of cladding of the plurality of strips of cladding, and where the electromagnetic waves propagate along the core without requiring an electrical return path. Other embodiments are disclosed. 1. A cable , comprising:a core;a plurality of dielectric strips, wherein a first dielectric constant of the core exceeds a second dielectric constant of each dielectric strip of the plurality of dielectric strips;a cover that surrounds the plurality of dielectric strips which are positioned around an outer surface of the core; anda coupler that facilitates inducing electromagnetic waves that propagate along the core, wherein the electromagnetic waves propagate along the core without requiring an electrical return path.2. The cable of claim 1 , wherein the core comprises a dielectric core.3. The cable of claim 1 , wherein the cover prevents the core and the plurality of dielectric strips from being exposed to an adverse environment.4. The cable of claim 1 , wherein the plurality of dielectric strips wraps around the outer surface of the core.5. The cable of claim 1 , wherein the core comprises an insulated conductor.6. The cable of claim 1 , wherein the core comprises a high density dielectric material claim 1 , and wherein each dielectric strip of the plurality of dielectric strips comprises a dielectric foam.7. The cable of claim 1 , wherein the electromagnetic waves have a fundamental wave mode claim 1 , a non-fundamental wave mode claim 1 , or a combination thereof.8. The cable of claim 1 , wherein the electromagnetic waves have electric fields confined below an external surface of the cover.9. The cable of claim 1 , wherein the cover prevents ...

POWER LINE COMMUNICATION ADAPTER CAPABLE OF BEING FREELY ASSEMBLED BY ACCESSORIES THEREOF

The present invention is to provide a power line communication adapter capable of being freely assembled by accessories thereof, which includes an anti-noise device having a first male plug for receiving a power line communication signal from a power outlet, a first female socket for connecting the first male plug with an electrical equipment through a filter module, and a first adapting port connected to the first male plug, such that noise generated by the electrical equipment device can be filtered by the filter module without interfering the power line communication signal; and a power line communication device having a power line communication module along with a second adapting port connected thereto such that, when the first and second adapting ports are connected with each other, the power line communication device and the anti-noise device are combined into an anti-noise adapter for receiving and transmitting the power line communication signal. 1. A power line communication adapter capable of being freely assembled by accessories thereof , comprising:an anti-noise device including a first male plug, a filter module, a first female socket and a first adapting port, wherein the first male plug is plugged into a power outlet to receive a power line communication signal transmitted from the power outlet, the filter module is electrically connected to the first male plug, the first female socket is electrically connected to the filter module and is plugged with an electrical equipment, and the first adapting port is electrically connected to the first male plug, such that noise generated by the electrical equipment device can be filtered by the filter module;a power line communication device including a second adapting port and a power line communication module, wherein a configuration or specification of the second adapting port matches the first adapting port and can be electrically connected to the first adapting port, the power line communication module is ...

METHODS AND APPARATUS FOR COUPLING AN ELECTROMAGNETIC WAVE ONTO A TRANSMISSION MEDIUM

Aspects of the subject disclosure may include, a coupler having a base for coupling to a transmission medium, and a plurality of members extending from the base. A distal end of each member of the plurality of members can be separated from an outer surface of the transmission medium. A transmitter coupled to the base can facilitate transmission of signals via the plurality of members. The transmission of signals can induce electromagnetic waves that propagate along the transmission medium without requiring an electrical return path. Other embodiments are disclosed. 1. A coupler , comprising:a metallic base for coupling to a transmission medium, wherein the metallic base is coaxially aligned with the transmission medium; anda plurality of metallic members extending from the metallic base,wherein a distal end of each metallic member of the plurality of metallic members is separated from an outer surface of the transmission medium,wherein a transmitter coupled to the metallic base facilitates transmission of signals via the plurality of metallic members, andwherein the transmission of signals induces electromagnetic waves that propagate along the transmission medium without requiring an electrical return path.2. The coupler of claim 1 , wherein each metallic member of the plurality of metallic members is non-linear.3. The coupler of claim 1 , wherein portions claim 1 , other than the distal end claim 1 , of each metallic member is separated from the outer surface of the transmission medium.4. The coupler of claim 3 , wherein the plurality of metallic members is separated uniformly from the outer surface of the transmission medium.5. The coupler of claim 3 , wherein the plurality of metallic members is separated non-uniformly from the outer surface of the transmission medium.6. The coupler of claim 1 , wherein the plurality of metallic members is separated from each other uniformly.7. The coupler of claim 1 , wherein the plurality of metallic members is separated from ...

Method for automatically selecting a frequency band

The invention relates in particular to a method executed by a control device, for a mesh communication network, allowing selection of an optimum frequency band, the method comprising the steps of determining network quality information, if the quality information is below a first threshold, then: sending, to each device in the network, a message comprising an instruction to perform a frequency band quality test, collecting, at the end of the quality test, for each device, quality data for each frequency band, determining, for each frequency band, a quality indicator, and selecting a so-called optimum frequency band as being the frequency band associated with the best indicator, when the so-called optimum frequency band is different from the frequency band used, then sending, to each device, an instruction to use the so-called optimum frequency band.

PREDICTIVE RECOMMENDATION ENGINE

Systems and methods for alerting a user device when an objective is mastered according to a piecewise Gaussian distribution updated according to a Bayesian method are disclosed herein. The system can include a user device having a network interface to exchange data with a server via a communication network, and an I/O subsystem to convert electrical signals to user interpretable outputs user interface. The system can include a server that can: receive a response from the user device; identify a user associated with the response; receive user attribute data; identify a next objective; provide a data packet from the aggregation of data packets to the user via the user device; receive a response from the user device; update the user attribute data according to a Bayesian method; and generate and provide an alert to the user device. 1. A system for alerting a user device when an objective is mastered according to a piecewise Gaussian distribution updated according to a Bayesian method , the system comprising: a network interface configured to exchange data with a server via a communication network; and', 'an I/O subsystem configured to convert electrical signals to user interpretable outputs user interface; and, 'a user device comprising receive a response from the user device, the response comprising an encoded data-carrying electrical signal;', 'identify a user associated with the response;', 'receive user attribute data, wherein the user attribute data comprises a piecewise Gaussian distribution model of a user skill level and a user error value;', 'identify a next objective, wherein the next objective is an aggregation of data packets;', 'provide a data packet from the aggregation of data packets to the user via the user device;', 'receive a response from the user device;', 'update the user attribute data according to a Bayesian method, wherein the update to the user attribute data updates the piecewise Gaussian distribution model; and', 'generate and provide an ...

TRANSMISSION MEDIUM HAVING MULTIPLE CORES AND METHODS FOR USE THEREWITH

Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can include a plurality of cores for selectively guiding an electromagnetic wave of a plurality of electromagnetic waves longitudinally along each core, and a shell surrounding at least a portion of each core for reducing exposure of the electromagnetic wave of each core. Other embodiments are disclosed. 1. A transmission medium , comprising:a plurality of cables bundled together, different cables of the plurality of cables comprising a differing number of cores, wherein the differing number of cores of the different cables reduce cross-talk between the plurality of cables; anda material surrounding at least a portion of the differing number of cores of each cable of the plurality of cables, wherein an electromagnetic wave propagating on a cable of the plurality of cables has an electric field intensity profile that is substantially concentrated within the material, wherein the electromagnetic wave has a non-optical frequency range, and wherein the material reduces exposure of the electromagnetic wave to an environment.2. The transmission medium of claim 1 , wherein the differing number of cores of the different cables comprise a conductor having an insulation layer disposed between the conductor and the material.3. The transmission medium of claim 2 , wherein the insulation layer has a first dielectric constant claim 2 , wherein the material has a second dielectric constant claim 2 , and wherein the first dielectric constant exceeds the second dielectric constant.4. The transmission medium of claim 2 , wherein the insulation layer comprises a high density dielectric material claim 2 , and wherein the material comprises a dielectric foam.5. The transmission medium of claim 2 , wherein the electromagnetic wave is bound to the insulation layer.6. The transmission medium of claim 1 , wherein the material disposed on each core ...

MOBILE DEVICES, MOBILE SYSTEMS AND OPERATING METHODS THEREOF

A first mobile device including a connection terminal configured to electrically connect to a second mobile device, a variable impedance device connected to the connection terminal, the variable impedance device configured to vary an impedance, processing circuitry configured to determine a power line communication (PLC) mode between the first mobile device and the second mobile device to be one of a low-speed PLC mode or a high-speed PLC mode, and control the impedance of the variable impedance device according to the determined PLC mode, and a PLC modem configured to receive power from the second mobile device or communicate data with the second mobile device based on the determined PLC mode. 1. An operating method of a first mobile device , the operating method comprising:receiving a host request from a second mobile device through a connection terminal in a first power line communication (PLC) mode;changing a PLC mode between the first mobile device and the second mobile device from the first PLC mode to a second PLC mode including increasing an impedance of a signal line in response to the host request, the signal line being connected to the connection terminal;receiving data from the second mobile device in the second PLC mode; andchanging the PLC mode from the second PLC mode to the first PLC mode including decreasing the impedance of the signal line based on completion of the receiving the data.2. The operating method of claim 1 , wherein the receiving data comprises:receiving a current pulse toggling between a high current and a low current, through the connection terminal from the second mobile device.3. The operating method of claim 1 , further comprising:receiving power from the second mobile device in the first PLC mode.4. The operating method of claim 3 , wherein the receiving power comprises:maintaining a line current flowing through the signal line as a high current.5. The operating method of claim 1 , further comprising:receiving power from the ...

Impedance isolated power and wired data communication network

A data communication network that includes a wired network operably configured to transfer data at a rate between 100 Mbps to 500 Mbps over ordinary wire of the type used for low power electric distribution. This may be accomplished through use of two or more communication nodes each, respectively, including an Ethernet port electrically coupled to a first external power source at a lower voltage and including an AC/DC low pass filtering circuit and a LISN circuit configuration and communicatively coupled to one another through a wired connection, forming a wired network operably configured to exchange data between one another.

METHOD AND APPARATUS FOR TRANSITIONING BETWEEN ELECTROMAGNETIC WAVE MODES

Aspects of the subject disclosure may include, a system that facilitates detecting first electromagnetic waves propagating along a transmission medium are experiencing a first propagation loss, inducing second electromagnetic waves along the transmission medium to mitigate the first propagation loss, detecting that the second electromagnetic waves are experiencing a second propagation loss and inducing third electromagnetic waves along the transmission medium to mitigate the second propagation loss. To reduce radiation losses when transitioning from the first electromagnetic waves to second electromagnetic waves and transitioning from the second electromagnetic waves to the third electromagnetic waves, the system can be further adapted to use differing criteria for each transition. Other embodiments are disclosed. 1. A device , comprising:a transmitter;a processing system including a processor, the processing system coupled to the transmitter; anda memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising:causing the transmitter to induce first electromagnetic waves that propagate along a transmission medium, the first electromagnetic waves having a first wave mode;obtaining first measurements associated with the first electromagnetic waves;responsive to detecting that the first measurements do not satisfy a first threshold, adjusting the transmitter to induce propagation of second electromagnetic waves along the transmission medium, the second electromagnetic waves having a second wave mode that differs from the first wave mode;obtaining second measurements associated with the second electromagnetic waves; andresponsive to detecting that the second measurements do not satisfy a second threshold, adjusting the transmitter to restore inducement of the first electromagnetic waves and cease transmission of the second electromagnetic waves, the second threshold differing from ...

GUIDED WAVE COMMUNICATION SYSTEM WITH INTERFERENCE MITIGATION AND METHODS FOR USE THEREWITH

In accordance with one or more embodiments, a transmission device includes a receiver configured to receive an interfering signal via an antenna. A controller is configured to select a subset of a plurality of guided electromagnetic wave resource blocks, based on the interfering signal, to mitigate an interference with a distributed antenna system. A transmitter is configured to generate electromagnetic signals conveying data, in accordance with the subset of the plurality of guided electromagnetic wave resource blocks. A coupler is configured to generate guided electromagnetic waves in response to the electromagnetic signals, wherein the guided electromagnetic waves propagate, without requiring an electrical return path, along a surface of a transmission medium of a distributed antenna system. 1. A transmission device comprising:a receiver configured to receive an interfering signal via an antenna;a controller configured to select a subset of a plurality of guided electromagnetic wave resource blocks, based on the interfering signal, to mitigate an interference with a distributed antenna system, wherein the subset of the plurality of guided electromagnetic wave resource blocks excludes at least one first frequency channel that overlaps with a frequency of the interfering signal, and the subset of the plurality of guided electromagnetic wave resource blocks further excludes at least one second frequency channel that overlaps an expected pairing frequency, wherein the expected pairing frequency is associated with the frequency of the interfering signal but differs from the frequency of the interfering signal, and wherein the at least one second frequency channel differs from the at least one first frequency channel;a transmitter configured to generate electromagnetic signals conveying data, in accordance with the subset of the plurality of guided electromagnetic wave resource blocks; anda coupler configured to generate guided electromagnetic waves in response to the ...

Devices and Methods for Power Consumption Control in Powerline Communications Systems and Apparatus

Systems and methods are provided for optimizing power consumption for power line communication (PLC). An example system may include a coupler that connects the system to a power line; an analog front end (AFE) for handling communications over the power line via the coupler; and a processor for controlling power consumption of the AFE. The processor may determine information regarding one or more control parameters of the analog front end (AFE), the information relating to powerline communications (PLC) over the power line; and based on the information, sets or adjusts the one or more control parameters of the analog front end (AFE), to control power consumption of the analog front end (AFE) during the powerline communications (PLC) over the power line. The analog front end (AFE) may then transmit or receive data over the power line using powerline communications (PLC), based on the one or more control parameters. 120-. (canceled)21. A system comprising:a coupler that connects the system to a power line;an analog front end (AFE) for handling communications over the power line via the coupler; anda processor for controlling power consumption of the analog front end (AFE); [ determines information regarding one or more control parameters of the analog front end (AFE), the information relating to powerline communications (PLC) over the power line; and', 'based on the information, sets or adjusts the one or more control parameters of the analog front end (AFE), to control power consumption of the analog front end (AFE) during the powerline communications (PLC) over the power line; and, 'the processor, 'the analog front end (AFE) transmits or receives data over the power line using powerline communications (PLC), based on the one or more control parameters., 'wherein22. The system of claim 21 , wherein the processor:determines current information regarding the one or more control parameters; andre-adjusts at least one of the one or more control parameters of the analog ...

Systems, Methods, and Apparatuses for Powerline Communication

Systems, methods, and apparatuses for improved powerline communication (PLC) are described. In one embodiment, a system comprises power down hardware coupled to internal wiring of a premises to selectively power down a portion of the internal wiring on request, and at least one hardware device to transmit a request to the power down hardware to selectively power down a portion of the internal wiring on request and to transmit data using power line communication hardware of the at least one hardware device while the portion of the internal wiring is powered down. 1. A method comprising:determining that a data buffer if a hardware device has data to transfer using powerline communication;measuring powerline noise in internal wiring coupled to the hardware device;transmitting the data of the data buffer when the measured powerline noise is below a threshold.2. The method of claim 1 , further comprising:performing a power control operation when the measured powerline noise is above a threshold.3. The method of claim 2 , wherein the power control operation comprising forcing at least one hardware device coupled to the internal wiring to enter a low power mode.4. The method of claim 1 , further comprising:calculating a time to send the data;sending a signal to cause at least a portion of the internal wiring to be turned off prior to transmitting the data of the data buffer of the hardware device when the measured powerline noise is below a threshold.5. The method of claim 4 , wherein the hardware device is powered by an internal power source while the portion of the internal wiring is turned off.6. The method of claim 5 , wherein the internal power source is a battery.7. The method of claim 5 , wherein the internal power source is a capacitor.8. The method of claim 4 , further comprising:after transmitting the data, sending a signal to turn power back on to the portion of the internal wiring that was turned off.9. The method of claim 1 , further comprising:activating an ...

APPARATUS FOR CONTROLLING OPERATIONS OF A COMMUNICATION DEVICE AND METHODS THEREOF

Aspects of the subject disclosure may include, for example, a transmission system having a coupling device, a bypass circuit, a memory and a processor. The coupling device can facilitate transmission or reception of electromagnetic waves that propagate along a surface of a transmission medium. The memory can store instructions, which when executed by the processor, causes the processor to perform operations including restarting a timer to prevent the bypass circuit from disabling the transmission or reception of electromagnetic waves by the coupling device. Other embodiments are disclosed. 1. A method , comprising:transmitting, by a processing system of a first device, first electromagnetic waves that propagate along a transmission medium having an outer surface, wherein the first electromagnetic waves are directed to a second device coupled to the transmission medium, and wherein the first electromagnetic waves operate at a first guided wave mode;responsive to a fault in the second device, identifying, by the processing system, a third device that utilizes the transmission medium for receiving second electromagnetic waves that operate at a second guided wave mode different from the first guided wave mode; andresponsive to the identifying, transmitting, by the processing system, third electromagnetic waves that propagate along the transmission medium directed to the third device, wherein the third electromagnetic waves operate at a third guided wave mode different from the first guided wave mode and the second guided wave mode.2. The method of claim 1 , wherein the fault is detected responsive to a failure to receive a message from the second device.3. The method of claim 1 , wherein the fault comprises a failure to reset a timer.4. The method of claim 1 , wherein the transmitting the third electromagnetic waves comprises modifying the first electromagnetic waves to generate the third electromagnetic waves claim 1 , and wherein the third guided wave mode is selected ...

METHOD AND SYSTEM FOR DETECTING NOISE IN AN ELECTRICAL GRID

A method and system for detecting a source of noise in an electrical grid distributing network implementing Power Line Communications, the method including, at each meter, disposing an element behaving as a resistive element within the frequency band of the PLC, and behaving as a nonresistive element at the frequency of the electrical grid, between a first cable belonging to the distributing network and a second cable belonging to the enduser network; measuring the difference in electric potential between the two ends of each element disposed between the first cable belonging to the distributing network and the second cable belonging to the enduser network; and from the one measurement, determining whether a device belonging to the enduser network and connected to the meter is causing a noise disturbance or not. 1. A method for detecting a source of noise in an electrical grid distributing network implementing Power Line Communications , said electrical grid distributing network comprising a plurality of meters respectively connected to a plurality of enduser networks , wherein said source of noise to be detected is originated in a device belonging to one of said enduser networks , wherein each of said meters is connected to at least one pair of cables corresponding to at least one phase of the 3 phases of the electrical grid , said at least one pair of cables comprising a first cable belonging to said distributing network and a second cable belonging to a corresponding enduser network , the method comprising:at each of said meters, disposing an element behaving as a resistive element within the frequency band of the PLC, and behaving as a resistive element within the frequency band of the PLC, and behaving as a nonresistive element at the frequency of the electrical grid, between said first cable belonging to the distributing network and said second cable belonging to the enduser network;measuring the difference in electric potential between the two ends (A, B) of ...

MULTI-FEED DIELECTRIC ANTENNA SYSTEM AND METHODS FOR USE THEREWITH

In accordance with one or more embodiments, an antenna system includes a dielectric antenna having a feed point, wherein the dielectric antenna is a single antenna. At least one cable having a plurality of conductorless dielectric cores is coupled to the feed point of the dielectric antenna, wherein electromagnetic waves that are guided by differing ones of the plurality of conductorless dielectric cores to the dielectric antenna result in differing ones of a plurality of antenna beam patterns. 1. An antenna system , comprising:a dielectric antenna including a feed point, wherein the dielectric antenna is a single antenna; andat least one cable comprising a plurality of conductorless dielectric cores coupled to the feed point of the dielectric antenna;wherein electromagnetic waves that are guided by differing ones of the plurality of conductorless dielectric cores to the dielectric antenna result in differing ones of a plurality of antenna beam patterns.2. The antenna system of claim 1 , wherein the dielectric antenna operates to generate a wireless signal at an aperture of the dielectric antenna resulting from propagation of the electromagnetic waves through the dielectric antenna.3. The antenna system of claim 1 , wherein the at least one cable includes a dielectric cladding that supports the plurality of conductorless dielectric cores.4. The antenna system of claim 3 , wherein the at least one cable further includes an outer jacket.5. The antenna system of claim 3 , wherein the at least one cable lacks a conductive shield layer.6. The antenna system of claim 3 , wherein the plurality of conductorless dielectric cores has a first dielectric constant claim 3 , wherein the dielectric cladding has a second dielectric constant claim 3 , and wherein the first dielectric constant exceeds the second dielectric constant.7. The antenna system of claim 3 , wherein the dielectric cladding comprises a low density dielectric material.8. The antenna system of claim 1 , wherein ...

METHOD AND APPARATUS FOR REPEATING GUIDED WAVE COMMUNICATION SIGNALS

Aspects of the subject disclosure may include, for example, a guided wave repeater system operable to receive via a guided wave transceiver a first plurality of electromagnetic waves that includes a first communication signal. A second plurality of electromagnetic waves that includes a second communication signal is transmitted via the guided wave transceiver. The first plurality of electromagnetic waves and the second plurality of electromagnetic waves are guided by a power line of a utility pole. A third communication signal is received from a smart grid device. A fourth communication signal is transmitted to the smart grid device. Other embodiments are disclosed. 1. A guided wave repeater system , comprising:a processing system that includes a processor;a first guided wave transceiver that transmits and receives communications by electromagnetic waves at a physical interface of a transmission medium that comprises a power line supported by a utility pole, wherein the electromagnetic waves are guided by the transmission medium and propagate without utilizing an electrical return path; and receiving via the first guided wave transceiver a first plurality of the electromagnetic waves that includes a first communication signal;', 'transmitting via the first guided wave transceiver a second plurality of the electromagnetic waves that includes a second communication signal;', 'receiving a third communication signal from a smart grid device; and', 'transmitting a fourth communication signal to the smart grid device., 'a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations comprising2. The guided wave repeater system of claim 1 , wherein the smart grid device is physically attached to the utility pole.3. The guided wave repeater system of claim 1 , wherein the smart grid device is powered by the power line.4. The guided wave repeater system of claim 1 , further comprising a wireless transceiver ...

Power line communication methods and devices

A power line communication method for realizing data communication between at least one first or sending power line communication partner device and at least one second or receiving power line communication partner device. The method checks transmission conditions of a plurality of possible communication channels, thereby generating transmission condition data descriptive for the communication conditions of the respective possible communication channels. Additionally, communication conditions of the plurality of possible communication channels are selected as actual communication conditions based on the transmission condition data.

ANALOG SIGNAL DIVERSITY IN MULTICHANNEL COMMUNICATIONS

A multichannel communications medium may have two or more channels available for transmitting information. A first transmission signal and a second transmission signal may be prepared from a same analog signal to be transmitted on a first channel and a second channel. For example, a phase shift or amplitude shift may be performed on the first transmission signal or the second transmission signal. The first transmission signal may be transmitted via the first channel, and the second transmission signal may be transmitted via the second channel. The phase shift or amplitude shift may be performed by analog components that are less complex than digital signal processors used for digital signal diversity. The analog components may be digitally controlled. The analog signal diversity may utilize cost effective analog components to improve the performance of the communications system over single channel communications without requiring complex digital signal processing of multiple signal paths. 1. A device comprising:a transmitter having an analog portion configured to produce an analog signal for transmission via a multichannel communications medium;an analog diversity unit configured to prepare a first transmission signal and a second transmission signal from the analog signal, wherein the first transmission signal is different from the second transmission signal by a phase shift; andthe transmitter configured to couple the first transmission signal to a first channel of the multichannel communications medium and couple the second transmission signal to a second channel of the multichannel communications medium.2. The device of claim 1 , further comprising determining an amount of the phase shift based at least in part on a signal quality measurement at a receiver coupled to the multichannel communications medium.3. The device of claim 1 , wherein the phase shift causes a gain in one of the first transmission signal and the second transmission signal claim 1 , the gain ...

METHOD AND APPARATUS FOR SURVEYING REMOTE SITES VIA GUIDED WAVE COMMUNICATIONS

Aspects of the subject disclosure may include, for example, a surveying system operable to receive a plurality of electromagnetic waves via a guided wave transceiver that include environmental data collected via a plurality of sensors at a plurality of remote sites. Weather pattern data is generated based on the environmental data. Other embodiments are disclosed. 1. A surveying system comprising:a processing system that includes a processor;a guided wave transceiver that transmits and receives communications by electromagnetic waves at a physical interface of a transmission medium, wherein the electromagnetic waves are guided by the transmission medium and propagate without requiring an electrical return path; and receiving a first plurality of the electromagnetic waves via the guided wave transceiver that include first environmental data collected via a plurality of sensors at a plurality of remote sites; and', 'generating weather pattern data based on the first environmental data., 'a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising2. The surveying system of claim 1 , wherein at least one of the plurality of remote sites is associated with at least one utility pole claim 1 , wherein at least one of the plurality of sensors is mounted on the at least one utility pole claim 1 , and wherein the first plurality of electromagnetic waves is guided along a power line of the at least one utility pole.3. The surveying system of claim 1 , wherein the first environmental data includes at least one of: wind velocity data claim 1 , atmospheric pressure data claim 1 , temperature data claim 1 , humidity data claim 1 , or rainfall data.4. The surveying system of claim 1 , wherein the generating the weather pattern data includes identifying a storm.5. The surveying system of claim 4 , wherein identifying the storm includes identifying an affected region associated with the ...

MOBILE DEVICES, MOBILE SYSTEMS AND OPERATING METHODS THEREOF

A first mobile device including a connection terminal configured to electrically connect to a second mobile device, a variable impedance device connected to the connection terminal, the variable impedance device configured to vary an impedance, processing circuitry configured to determine a power line communication (PLC) mode between the first mobile device and the second mobile device to be one of a low-speed PLC mode or a high-speed PLC mode, and control the impedance of the variable impedance device according to the determined PLC mode, and a PLC modem configured to receive power from the second mobile device or communicate data with the second mobile device based on the determined PLC mode. 1. A first mobile device comprising:a connection terminal configured to electrically connect to a second mobile device;a variable impedance device connected to the connection terminal, the variable impedance device configured to vary an impedance; determine a power line communication (PLC) mode between the first mobile device and the second mobile device to be one of a low-speed PLC mode or a high-speed PLC mode, and', 'control the impedance of the variable impedance device according to the determined PLC mode; and, 'processing circuitry configured to'}a PLC modem configured to receive power from the second mobile device or communicate data with the second mobile device based on the determined PLC mode.2. The first mobile device of claim 1 , whereinthe PLC modem is configured to receive the power from the second mobile device in the low-speed PLC mode; andthe impedance of the variable impedance device corresponds to a first impedance in the low-speed PLC mode.3. The first mobile device of claim 2 , whereinthe PLC modem is configured to communicate the data with the second mobile device in the high-speed PLC mode; andthe impedance of the variable impedance device corresponds to a second impedance in the high-speed PLC mode, the second impedance being higher than the first ...

METHOD AND APPARATUS FOR SURVEYING REMOTE SITES VIA GUIDED WAVE COMMUNICATIONS

Aspects of the subject disclosure may include, for example, a surveying system operable to receive a plurality of electromagnetic waves via a guided wave transceiver that include environmental data collected via a plurality of sensors at a plurality of remote sites. Weather pattern data is generated based on the environmental data. Other embodiments are disclosed. 1. A surveying system comprising:a processing system that includes a processor;a guided wave transceiver configured to transmit and receive communications by electromagnetic waves at a physical interface of a transmission medium, wherein the electromagnetic waves are guided by the transmission medium and propagate without requiring an electrical return path; and receiving a first plurality of the electromagnetic waves via the guided wave transceiver that includes first Unmanned Aerial Vehicle (UAV) data collected via a plurality of UAV sensors at a plurality of remote sites, wherein at least one of the plurality of remote sites is associated with at least one utility pole, wherein at least one of the plurality of UAV sensors is mounted on the at least one utility pole, and wherein the first plurality of the electromagnetic waves is guided along a power line of the at least one utility pole; and', 'generating UAV traffic pattern data based on the first UAV data., 'a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising2. The surveying system of claim 1 , wherein the operations further comprise:receiving a second plurality of electromagnetic waves, via the guided wave transceiver, that is guided by the transmission medium and propagates without utilizing an electrical return path, wherein the second plurality of electromagnetic waves includes first environmental data collected via a plurality of sensors at the plurality of remote sites;wherein at least one of the plurality of sensors is mounted on the at least ...

COMMUNICATION SYSTEM

A slave control device receives a communication signal from a master control device, and controls loads according to the received communication signal. A modulator superimposes the communication signal from the master control device on power source lines, and a demodulator demodulates the communication signal superimposed on the power source lines and supplies the demodulated communication signal to the slave control device. The modulator is provided on power source lines on a battery side, and the demodulator is provided on the power source lines on a load side. The modulator superimposes the communication signal on the power source lines which are on a side closer to the loads with respect to the modulator among the power source lines. 1. A communication system comprising:a transmission unit;a reception unit for receiving a communication signal from the transmission unit;power source lines connecting one of electrodes of a battery and loads;a modulation unit superimposing the communication signal from the transmission unit on the power source line;a demodulation unit demodulating the communication signal superimposed on the power source line and supplying the communication signal to the reception unit, anda switching semiconductor transistor provided between the battery and another battery and switching on and off a connection between the battery and the other battery,wherein the modulation unit is provided on the power source line on a side closer to the battery,the demodulation unit is provided on the power source line on a side closer to the loads,the modulation unit superimposes the communication signal on the power source line on the side closer to the loads with respect to the modulation unit, andthe modulation unit includes the switching semiconductor transistor having a control terminal to which the communication signal from the transmission unit is input.2. The communication system according to claim 1 , wherein a pulse communication signal that gradually ...

DETECTING ACTUATION OF ELECTRICAL DEVICES USING ELECTRICAL NOISE OVER A POWER LINE

Activity sensing in the home has a variety of important applications, including healthcare, entertainment, home automation, energy monitoring and post-occupancy research studies. Many existing systems for detecting occupant activity require large numbers of sensors, invasive vision systems, or extensive installation procedures. Disclosed is an approach that uses a single plug-in sensor to detect a variety of electrical events throughout the home. This sensor detects the electrical noise on residential power tines created by the abrupt switching of electrical devices and the noise created by certain devices while in operation. Machine learning techniques are used to recognize electrically noisy events such as turning on or off a particular light switch, a television set, or an electric stove. The system has been tested to evaluate system performance over time and in different types of houses. Results indicate that various electrical events can be learned and classified with accuracies ranging from 85-90%. 1. A system comprising:a sensing device configured to monitor electrical noise on an electrical power line of a structure; anda processing system configured to use the electrical noise to detect an electrical event on the electrical power line corresponding to a change in an electrical state of a first electrical device coupled to the electrical power line from among two or more electrical devices coupled to the electrical power line.2. The system of claim 1 , wherein:the processing system is further configured to detect that the change in the electrical state of the first electrical device is a switching-on of the first electrical device.3. The system of claim 1 , wherein:the processing system is further configured to detect that the change in the electrical state of the first electrical device is a switching-off of the first electrical device.4. The system of claim 1 , wherein:the processing system is further configured to detect that the change in the electrical ...

POWER LINE COMMUNICATION TRANSCEIVER AND POWER LINE COMMUNICATION METHOD

One embodiment of the present invention provides a transceiver for power line communication, including: a transmission unit configured to transmit a signal; and a reception unit configured to estimate characteristics of a transmission path. Further, another embodiment of the present invention provides a power line communication method, including the steps of: estimating transmission path characteristics; generating an interference avoiding mask based on interference of the estimated transmission path characteristics; selecting or cancelling, through use of the interference avoiding mask, a sub-carrier of a signal to be transmitted; and transmitting the signal. 1. A transceiver for power line communication , comprising:a transmission unit configured to transmit a signal; anda reception unit configured to receive a signal and to estimate characteristics of a transmission path.2. A transceiver for power line communication according to claim 1 , further comprising:an interference estimation unit configured to generate an interference avoiding mask based on interference of the estimated transmission path characteristics; anda sub-carrier allocation unit configured to select or cancel, through use of the interference avoiding mask, a sub-carrier of a signal to be transmitted.3. A transceiver for power line communication according to claim 1 , further comprising:a transmission path distortion estimation unit configured to receive a signal that is transmitted by the transmission unit, and to estimate transmission path distortion of transmission path characteristics based on the received signal; anda pre-equalization processing unit configured to equalize a signal to be transmitted in advance, through use of the estimated transmission path distortion.4. A transceiver for power line communication according to claim 1 , further comprising a sub-carrier estimation unit configured to generate an interference avoiding mask based on interference of the estimated transmission path ...

METHOD AND APPARATUS FOR ADJUSTING A MODE OF COMMUNICATION IN A COMMUNICATION NETWORK

Aspects of the subject disclosure may include, for example, a waveguide system for detecting a condition that adversely affects a propagation of electromagnetic waves generated by the waveguide system on a surface of the transmission medium, and adjusting characteristics of the electromagnetic waves generated by the waveguide system to reduce adverse effects caused by the condition. Other embodiments are disclosed. 1. A method , comprising:detecting, by a first waveguide system comprising a processor, an impairment, wherein the impairment is a physical discontinuity present on a surface of a first transmission medium that adversely affects a propagation of electromagnetic waves along the first transmission medium;adjusting, by the first waveguide system, a mode of communication for transmitting or receiving the electromagnetic waves guided by the first transmission medium to mitigate an adverse effect of the impairment; andnotifying, by the first waveguide system, a second waveguide system of the adjusting of the mode of communication for transmitting or receiving the electromagnetic waves.2. The method of claim 1 , wherein the adjusting of the mode of communication comprises adjusting a wave propagation mode for transmitting or receiving the electromagnetic waves.3. The method of claim 2 , wherein the adjusting of the wave propagation mode comprises adjusting a wavelength of the electromagnetic waves.4. The method of claim 3 , wherein the adjusting of the wavelength of the electromagnetic waves comprises increasing the wavelength of the electromagnetic waves.5. The method of claim 1 , wherein the second waveguide system receives the electromagnetic waves from the first waveguide system according to the mode of communication adjusted by the first waveguide system.6. The method of claim 5 , wherein the second waveguide system is coupled to the first transmission medium and positioned after the impairment of the first transmission medium.7. The method of claim 6 , ...

Outbound Interference Reduction in a Broadband Powerline System

Disclosed is a method and apparatus for reducing outbound interference in a broadband powerline communication system. Data is modulated on first and second carrier frequencies and is transmitted via respective first and second lines of the powerline system. A characteristic of at least one of the carrier signals (e.g., phase or amplitude) is adjusted in order to improve the electrical balance of the lines of the transmission system. This improvement in electrical balance reduces the radiated interference of the powerline system. Also disclosed is the use of a line balancing element on or more lines of the powerline system for altering the characteristics of at least one of the power lines in order to compensate for a known imbalance of the transmission system. 1. A method for reducing interference radiated by a powerline transmission system , the method comprising:determining characteristics of a modulated first carrier signal on a first line of the powerline transmission system;determining characteristics of a modulated second carrier signal on a second line of the powerline transmission system; andadjusting one of the characteristics of the modulated first carrier signal or the modulated second carrier signal based on a determined imbalance between the first line and the second line to improve an electrical balance of the first line and the second line of the powerline transmission system.2. The method of claim 1 , wherein the adjusting one of the characteristics of the modulated first carrier signal or the modulated second carrier signal based on the determined imbalance between the first line and the second line to improve the electrical balance of the first line and the second line of the powerline transmission system comprises:adjusting a carrier signal phase of one of the modulated first carrier signal or the modulated second carrier signal based on the determined imbalance between the first line and the second line to improve the electrical balance between ...

METHOD FOR TRANSMITTING A SIGNAL VIA A POWER LINE NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM

A method for transmitting signals over a power line network, wherein within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each channel including a respective feeding port of at least one transmitter and the respective receiving port of the at least one transmitter and transmitter including at least two feeding ports. The method: determines a channel characteristic of each of the channels; applies a feeding port selection criterion based on the channel characteristic; and selects an excluded feeding port among the at least two feeding ports based on the feeding port selection criterion, wherein the excluded feeding port is not used during further communication. A corresponding power line communication modem can implement the method. 18-. (canceled)9. A Power Line Communication (PLC) transmitter connectable to phase , neutral , and protective earth wires of a power line network , the PLC transmitter comprising:a first feeding port that is connectable to the phase and neutral wires and that is configured to output a first communication signal for transmission from the transmitter;a second feeding port that is connectable to the phase and protective earth wires or to the neutral and protective earth wires and that is configured to output a second communication signal for transmission from the transmitter;circuitry configured to perform a feeding port selection operation based on a disturbance of the power line network for output of at least one of the first communication signal and the second communication signal, for data transmission, via at least one of the first feeding port and the second feeding port, respectively, based on the feeding port selection operation; andtransmitting circuitry that transmits data via a selected feeding port, the transmitted data being at least one of the first communication signal and the second communication signal.10. The transmitter according to claim 9 , wherein the ...

METHOD AND APPARATUS FOR REDUCING THE POWER OF A SIGNAL ELECTROMAGNETICALLY COUPLED FROM A PLC MEDIUM TO A DSL MEDIUM

Reducing a power of a signal electromagnetically coupled from a PLC medium to a digital subscriber line (DSL) medium. The method involves transmitting a data signal over the PLC medium at a first average power level from one of a plurality of PLC transmitters coupled to the PLC medium, then measuring first noise associated with a first signal received at a DSL receiver coupled to the DSL communication medium caused at least in part by the data signal transmitted over the PLC medium at a second average power level from the one PLC transmitter, the second average power level different than the first average power level, followed by measuring second noise associated with a second signal received at the DSL receiver coupled to the DSL communication medium caused at least in part by the data signal transmission over the PLC medium at the second average power level. A transmit power spectral density (PSD) for the data signal transmitted by the one PLC transmitter over the PLC medium is then changed, based on a difference between the first noise and the second noise, such that the changed transmit PSD for the data signal transmitted by the one PLC transmitter over the PLC medium reduces the power of the signal electromagnetically coupled from the PLC medium to the DSL medium caused by the data signal transmission from the one PLC transmitter over the PLC medium. 131-. (canceled)32. A method for reducing a power of a signal electromagnetically coupled from a PLC medium to a digital subscriber line (DSL) medium , comprising:transmitting a data signal over the PLC medium at a first average power level from one of a plurality of PLC transmitters coupled to the PLC medium;measuring first noise associated with a first signal received at a DSL receiver coupled to the DSL communication medium caused at least in part by the data signal transmission over the PLC medium at the first average power level;transmitting a data signal over the PLC medium at a second average power level ...

TRANSMISSION MEDIUM AND METHODS FOR USE THEREWITH

Aspects of the subject disclosure may include, for example, a cable can include a core, a plurality of strips of cladding disposed on the core, and a coupler that facilitates inducing electromagnetic waves that propagate along the core, where a first dielectric constant of the core exceeds a second dielectric constant of each strip of cladding of the plurality of strips of cladding, and where the electromagnetic waves propagate along the core without requiring an electrical return path. Other embodiments are disclosed. 1. A cable , comprising:a core;a plurality of dielectric strips that surround an outer surface of the core;a cover that surrounds the plurality of dielectric strips; anda coupler that facilitates inducing electromagnetic waves that propagate along the core without requiring an electrical return path, and wherein the electromagnetic waves have electric fields confined substantially below an external surface of the cover.2. The cable of claim 1 , wherein the core comprises a dielectric core.3. The cable of claim 1 , wherein the cover prevents the core and the plurality of dielectric strips from being exposed to an adverse environment.4. The cable of claim 1 , wherein the plurality of dielectric strips wraps around the outer surface of the core.5. The cable of claim 1 , wherein the core comprises an insulated conductor.6. The cable of claim 1 , wherein the core comprises a high density dielectric material claim 1 , and wherein each dielectric strip of the plurality of dielectric strips comprises a dielectric foam.7. The cable of claim 1 , wherein the electromagnetic waves have a fundamental wave mode claim 1 , a non-fundamental wave mode claim 1 , or a combination thereof.8. The cable of claim 1 , wherein the cover prevents exposure of the electromagnetic waves to an adverse environment.9. The cable of claim 1 , wherein an end of the core couples to a feed point of an antenna.10. A cable claim 1 , comprising:a cover;a core;a plurality of portions of ...

GUIDED WAVE COMMUNICATION SYSTEM WITH INTERFERENCE MITIGATION AND METHODS FOR USE THEREWITH

In accordance with one or more embodiments, a transmission device includes a receiver configured to receive an interfering signal via an antenna. A controller is configured to select a subset of a plurality of guided electromagnetic wave resource blocks, based on the interfering signal, to mitigate an interference with a distributed antenna system. A transmitter is configured to generate electromagnetic signals conveying data, in accordance with the subset of the plurality of guided electromagnetic wave resource blocks. A coupler is configured to generate guided electromagnetic waves in response to the electromagnetic signals, wherein the guided electromagnetic waves propagate, without requiring an electrical return path, along a surface of a transmission medium of a distributed antenna system. 1. A transmission device comprising:a receiver configured to receive an interfering signal via an antenna;a controller configured to select a subset of a plurality of guided electromagnetic wave resource blocks, based on the interfering signal, to mitigate an interference with a distributed antenna system, wherein the subset of the plurality of guided electromagnetic wave resource blocks excludes at least one first frequency channel that overlaps with a frequency of the interfering signal, and the subset of the plurality of guided electromagnetic wave resource blocks further excludes at least one second frequency channel that overlaps an expected pairing frequency that is identified based on the frequency of the interfering signal and a database of standard upstream and downstream frequency pairings, and wherein the at least one second frequency channel differs from the at least one first frequency channel;a transmitter configured to generate electromagnetic signals conveying data, in accordance with the subset of the plurality of guided electromagnetic wave resource blocks; anda coupler configured to generate guided electromagnetic waves in response to the electromagnetic ...

ADC BASED RECEIVER

A receiver includes: an automatic gain controller (AGC) configured to receive an analog signal; an analog-to-digital converter (ADC) configured to receive an output from the AGC and to output a digitized signal, wherein a most significant bit of the digitized signal corresponds to a sliced data, and a least significant bit of the digitized signal corresponds to an error signal; and an adaptation unit configured to control the AGC, the ADC, or both the AGC and the ADC, based at least in part on the digitized signal to achieve a desired data digitization and data slicing. 2. The receiver according to claim 1 , wherein the ADC is configured to perform an analog-to-digital conversion function and a slicer function.3. The receiver according to claim 1 , wherein the digitized signal comprises information corresponding to a mapping function.4. The receiver according to claim 1 , wherein an operation between the ADC and the adaptation unit does not require a digital signal processor (DSP).5. The receiver according to claim 1 , wherein the ADC comprises an adaptation logic table.6. A receiver claim 1 , comprising:an automatic gain controller (AGC) configured to receive an analog signal;an analog-to-digital converter (ADC) configured to receive an output from the AGC and to output a digitized signal, wherein a most significant bit of the digitized signal corresponds to a sliced data, and a least significant bit of the digitized signal corresponds to an error signal;an adaptation unit configured to control the AGC, the ADC, or both the AGC and the ADC, based at least in part on the digitized signal to achieve a desired data digitization and data slicing; anda digital signal processor (DSP) coupled to the ADC, wherein the DSP is configured to be switched on when the receiver is performing processing for long reach application, and is configured to be switched off when the receiver is performing processing for short reach application.7. The receiver according to claim 1 , ...

METHOD AND APPARATUS FOR OPERATING A DIGITAL SUBSCRIBER LINE ARRANGEMENT

An aggregation device is arranged to receive a plurality of lines each of which is connected to a user premises and wherein one of the user premises is a multi-terminating-point enabled premises and includes a splitter device connected to the line and at least two distinct terminating points each of which is connected to the splitter device via an in-premises connection and is operable to terminate a two part connection between the respective terminating point and the aggregation device via the splitter device, and the aggregation device includes a transmitter portion, a memory, determination means, and selection means. 1. A system for transmitting data to a first user device and a second user device within a user premises , the system comprising:a distribution point having an aggregation device comprising a plurality of access network modems and having a plurality of lines connected thereto;a splitter device connected to the aggregation device via one of the lines connected thereto and being located within the user premises, a first connection between the splitter device and a first customer premises equipment modem, the first customer premises equipment modem being connected to the first user device, and a second connection between the splitter device and a second customer premises equipment modem, the second customer premises equipment modem being connected to the second user device,wherein the aggregation device is operable to transmit data for the first user device via a first one of the plurality of network modems in the aggregation device, the splitter device and the first customer premises equipment modem using a Digital Subscriber Line protocol and operable to transmit data for the second user device via the first one of the plurality of modems in the aggregation device, the splitter device and the second customer premises equipment modem using a Digital Subscriber Line protocol.2. A system according to claim 1 , wherein the aggregation device is arranged ...

SYSTEM FOR TRANSMITTING INFORMATION BETWEEN CIRCUITS

In described examples, a first isolation element electrically isolates a first circuit from a second circuit and passes AC signals between the first circuit and the second circuit. A second isolation element electrically isolates the first circuit from the second circuit and passes AC signals between the first circuit and the second circuit. A ground of the second circuit electrically floats relative to a ground of the first circuit, so that a digital signal is able to pass from the second circuit through a third isolation element to the first circuit. A supply voltage generation device converts AC signals from the first isolation element and the second isolation element into at least one DC voltage to power the second circuit. 1. A system , comprising:a first isolation element to electrically isolate a first circuit from a second circuit and to pass AC signals between the first circuit and the second circuit;a second isolation element to electrically isolate the first circuit from the second circuit and to pass AC signals between the first circuit and the second circuit;a ground of the second circuit to electrically float relative to a ground of the first circuit, so that a digital signal is able to pass from the second circuit through a third isolation element to the first circuit; anda supply voltage generation device to convert AC signals from the first isolation element and the second isolation element into at least one DC voltage to power the second circuit.2. The system of claim 1 , wherein AC signals passed through the first isolation element and the second isolation element together form a differential signal.3. The system of claim 1 , wherein: AC signals of the first circuit are referenced to the ground of the first circuit; and AC signals of the second circuit are referenced to the ground of the second circuit.4. The system of claim 1 , further comprising:a first transient filter to pass AC signals from the first isolation element and to attenuate at ...

POLYISOCYANATES FROM FUSED BICYCLIC POLYOLS AND POLYURETHANES THEREFROM

The present invention is directed to polyisocyanates and polyurethanes derived therefrom. In various embodiments, the present invention provides polyisocyanates, methods of making the polyisocyanates from fused bicyclic alcohols, polyurethanes, and methods of making the polyurethanes from the polyisocyanates. 1. (canceled)324. The method of claim , wherein m=n=1.42425. The method of any one of claims - , wherein the acid anhydride is succinic anhydride.52426. The method of any one of claims - , wherein the acyl halide generator is at least one of thionyl chloride , thionyl bromide , phosphorous pentachloride , phosphorus pentabromide , cyanuric fluoride , phosgene , diphosgene , triphosgene , oxalyl chloride , phosphorus tribromide , phosphorus trichloride , and phosphoryl chloride.62427. The method of any one of claims - , wherein the azide generator is at least one of sodium azide , trimethylsilyl azide , triethylsilyl azide , lithium azide , potassium azide , tetrabutylammonium azide , tert-butyldimethylsilyl azide , and tert-butyldiphenylsilyl azide.72428. The method of any one of claims - , wherein contacting the polyacyl halide with an azide generator provides a polyacyl azide having the structure of Formula (I) wherein R″=—C(O)N , wherein the polyacyl azide undergoes a Curtius rearrangement to provide the polyisocyanate.82429. The method of any one of claims - , wherein the contacting the polyacyl halide and the azide generator is performed in a biphasic solution comprising at least an aqueous phase and an organic phase and optionally further comprising a phase transfer catalyst.9. The method of claim 2 , wherein R′ is unsubstituted.10. The method of claim 2 , wherein R′ is —CH—CH—.11. The method of claim 2 , wherein rings A and B are unsubstituted with the exception of the ester substituents including R′ and R″.12. The method of claim 2 , wherein m=n=1 claim 2 , and one of the ester substituents including R′ and R″ is alpha to at least one carbon atom shared ...

METHOD AND APPARATUS FOR ADJUSTING A MODE OF COMMUNICATION IN A COMMUNICATION NETWORK

Aspects of the subject disclosure may include, for example, a waveguide system for detecting a condition that adversely affects a propagation of electromagnetic waves generated by the waveguide system on a surface of the transmission medium, and adjusting characteristics of the electromagnetic waves generated by the waveguide system to reduce adverse effects caused by the condition. Other embodiments are disclosed. 1. A method , comprising:adjusting, by a first waveguide system, a mode of communication for transmitting or receiving electromagnetic waves guided by a first transmission medium to mitigate an adverse effect of an impairment, wherein the impairment is a physical discontinuity detected on a surface of the first transmission medium that adversely affects a propagation of the electromagnetic waves along the first transmission medium; andnotifying, by the first waveguide system, a second waveguide system of the adjusting of the mode of communication for transmitting or receiving the electromagnetic waves.2. The method of claim 1 , wherein the adjusting of the mode of communication comprises adjusting a wave propagation mode for transmitting or receiving the electromagnetic waves.3. The method of claim 2 , wherein the adjusting of the wave propagation mode comprises adjusting a wavelength of the electromagnetic waves.4. The method of claim 3 , wherein the adjusting of the wavelength of the electromagnetic waves comprises increasing the wavelength of the electromagnetic waves.5. The method of claim 1 , wherein the second waveguide system receives the electromagnetic waves from the first waveguide system according to the mode of communication adjusted by the first waveguide system.6. The method of claim 5 , wherein the second waveguide system is coupled to the first transmission medium and positioned after the impairment of the first transmission medium.7. The method of claim 6 , wherein the second waveguide system retrieves content from the electromagnetic ...

COMMUNICATION CHANNEL IDENTIFICATION IN A POWER LINE COMMUNICATION NETWORK

In one embodiment, a device in a network receives a message from a neighboring device that identifies the electrical phase on which the message was sent. Crosstalk is identified between the device and the neighboring device by determining that the message was received on a different electrical phase than the phase on which the message was sent. One or more distinct communication channels between the device and the neighboring device are identified based on the identified crosstalk with each communication channel including or more electrical phases. 1. A method comprising:receiving, at a device in a network, a message from a neighboring device that identifies an electrical phase on which the message was sent;identifying crosstalk between the device and the neighboring device by determining that the message was received on a different electrical phase than the phase on which the message was sent; andidentifying one or more distinct communication channels between the device and the neighboring device based on the identified crosstalk, each communication channel comprising one or more electrical phases.2. The method as in claim 1 , further comprising:transmitting data in parallel to the neighboring device over a plurality of identified communication channels.3. The method as in claim 2 , wherein the data transmitted in parallel comprises a single packet coded across the plurality of communication channels.4. The method as in claim 2 , wherein the data transmitted in parallel comprises different data packets.5. The method as in claim 1 , wherein the message from the neighboring device is a node discovery beacon message.6. The method as in claim 1 , further comprising:including data regarding the identified one or more distinct communication channels in a tone map response message; andsending the tone map response message via the network.7. The method as in claim 6 , further comprising:including data regarding the identified crosstalk in the tone map response message.8. ...

LOWERING TRANSMISSION POWER RESPONSIVE TO BROADCAST RADIO TRANSMISSIONS

Transmission power of a signal may be lowered in response to detecting a broadcast radio transmission. A communication device may communicate via a powerline communication (PLC) medium by transmitting, via the PLC medium, a signal having at least a first carrier frequency. The communication device may detect a broadcast radio transmission. The communication device may lower a transmission power setting associated with the first carrier frequency from a first power level to a second power level that is lower than the first power level in response to detecting the broadcast radio transmission. The communication device may transmit, via the PLC medium, the signal having at least the first carrier frequency at the second power level during a time period associated with the broadcast radio transmission. 1. A method for communicating via a powerline communication (PLC) medium , the method comprising:transmitting, via the PLC medium, a signal having at least a first carrier frequency associated with a transmission power setting;detecting a broadcast radio transmission;lowering the transmission power setting associated with the first carrier frequency from a first power level to a second power level that is lower than the first power level, in response to detecting the broadcast radio transmission; andtransmitting, via the PLC medium, the signal having at least the first carrier frequency at the second power level during a time period associated with the broadcast radio transmission.2. The method of claim 1 , further comprising:obtaining signal-to-noise ratio (SNR) measurements of the signal measured during the time period.3. The method of claim 2 , further comprising:increasing the transmission power setting after the time period associated with the broadcast radio transmission, wherein the increasing is in response to the SNR measurements obtained during the time period.4. The method of claim 1 , further comprising:increasing the transmission power setting associated with ...

SYSTEMS AND METHODS FOR MEASURING CHARACTERISTICS OF A WELDING CABLE WITH A LOW POWER TRANSCEIVER

A welding system is provided. The welding system includes a low power transceiver configured to be coupled to a weld cable. The low power transceiver includes a low power transmitter, a low power receiver, and a first processor. The low power receiver is configured to transmit one or more unmodulated tones through the weld cable to a welding power supply. The low power receiver is configured to receive the one or more unmodulated tones through the weld cable from the welding power supply. The first processor is configured to determine one or more channel equalization filter coefficients related to the weld cable corresponding to a distortive characteristic of the weld cable. 1. A welding system , comprising: a low power transmitter configured to transmit one or more unmodulated tones through the weld cable to a welding power supply;', 'a low power receiver configured to receive the one or more unmodulated tones through the weld cable from the welding power supply; and', 'a first processor configured to determine one or more channel equalization filter coefficients related to the weld cable corresponding to a distortive characteristic of the weld cable., 'a low power transceiver configured to be coupled to a weld cable, wherein the low power transceiver comprises2. The welding system of claim 1 , wherein the distortive characteristic is a frequency and time dependent amplitude and phase distortion of the weld cable.3. The welding system of claim 1 , wherein the low power transmitter is configured to transmit a series of unmodulated tones claim 1 , and wherein each unmodulated tone from the series of unmodulated tones is separated by a predefined time period claim 1 , and wherein the transmitted unmodulated tone is a sinusoidal signal comprising a reference amplitude claim 1 , a reference phase claim 1 , a reference frequency claim 1 , or a combination thereof claim 1 , and wherein each unmodulated tone is utilized as a reference signal.4. The welding system of claim ...

Devices and Methods for Power Consumption Control in Powerline Communications Systems and Apparatus

The present disclosure includes systems and techniques relating to power line communications (PLC) systems and apparatus. In some implementations, a method includes determining information regarding a potential data rate to be used with a powerline communications (PLC) channel, reducing a bias current or voltage of an analog front end of a PLC transceiver based on the determined information to reduce power consumption of the analog front end of the PLC transceiver, and transmitting or receiving data over the PLC channel with the reduced bias current or voltage of the analog front end of the PLC transceiver. 1. A method comprising:determining information regarding a potential data rate to be used with a powerline communications (PLC) channel;reducing a bias current or voltage of an analog front end of a PLC transceiver based on the determined information to reduce power consumption of the analog front end of the PLC transceiver; andtransmitting or receiving data over the PLC channel with the reduced bias current or voltage of the analog front end of the PLC transceiver.2. The method of claim 1 , comprising:determining additional information regarding a new potential data rate to be used with the PLC channel;boosting the bias current or voltage of the analog front end of the PLC transceiver based on the additional information to increase power consumption of the analog front end of the PLC transceiver; andtransmitting or receiving data over the PLC channel with the boosted bias current or voltage of the analog front end of the PLC transceiver.3. The method of claim 1 , wherein determining the information regarding the potential data rate comprises:determining a channel condition of the PLC channel; anddetermining a data rate required by an application or a network.4. The method of claim 1 , wherein determining the information regarding the potential data rate comprises determining a channel condition of the PLC channel based on received information regarding a ...

METHOD AND APPARATUS FOR INSTALLATION AND ALIGNMENT OF RADIO DEVICES

Aspects of the subject disclosure may include, a communication device with a group of radio devices connected with a support structure, where the support structure is positioned in and passes through housing openings in each radio device to provide a stacked arrangement. One or more radio device is rotatable with respect to the support structure to enable adjusting a first orientation of a directional antenna therein. Other embodiments are disclosed. 1. A communication device comprising:a support structure having a cylindrical shape and comprising an antenna;a connection structure that physically connects the support structure with a utility structure; anda first radio device secured to the support structure, wherein the first radio device has a first radio housing with a first housing opening therethrough, wherein the support structure is positioned in and passes through the first housing opening, wherein the first radio device comprises first radio components associated with transmitting first wireless signals, receiving the first wireless signals, or a combination thereof, and wherein the first radio device has a first coupling structure that enables coupling the first radio components to the antenna of the support structure.2. The communication device of claim 1 , further comprising:a second radio device connected with the support structure, wherein the second radio device has a second radio housing with a second housing opening therethrough, wherein the support structure is positioned in and passes through the second housing opening, wherein the second radio device comprises second radio components associated with transmitting second wireless signals, receiving the second wireless signals, or a combination thereof, wherein the first wireless signals and the second wireless signals utilize different communication protocols, and wherein the first and second radio devices are positioned in a stacked arrangement.3. The communication device of claim 2 , wherein the ...

METHOD AND APPARATUS FOR MOUNTING AND COUPLING RADIO DEVICES

Aspects of the subject disclosure may include, a communication device with a support structure having first and second annular contacts formed on an outer surface thereof, a first radio device having a first inner surface of a first housing opening with a third contact, and a second radio device having a second inner surface of a second housing opening with a fourth contact. The support structure is positioned in and passes through the first and second housing openings thereby positioning the first and second radio devices in a stacked arrangement, and, when in the stacked arrangement, the first and third contacts are aligned and the second and fourth contact are aligned to provide a coupling between the first and second radio devices. Other embodiments are disclosed. 1. A communication device comprising:a support structure having a cylindrical shape with an outer surface, wherein the support structure has a plurality of first contacts formed on the outer surface, wherein each of the plurality of first contacts is an annular contact circumscribing the outer surface; anda first radio device connected with the support structure, wherein the first radio device has a first radio housing with a first housing opening therethrough, wherein the support structure is positioned in and passes through the first housing opening, wherein the first radio device comprises first radio components associated with transmitting first wireless signals, receiving the first wireless signals, or a combination thereof, wherein the first housing opening has a first inner surface with a first coupling structure, wherein the first coupling structure comprises a plurality of second contacts, and wherein each of the plurality of second contacts corresponds to and aligns with a corresponding one of the plurality of first contacts formed on the outer surface of the support structure.2. The communication device of claim 1 , wherein the first coupling structure comprises a biasing member that ...

Digital Baseband Communication On Power Line Downhole

A communication system can include a first transceiver and a second transceiver that can communicate digital baseband data via a direct current (DC) power line bus in the wellbore. One or more of the transceivers includes a demodulator for demodulating the digital baseband data received from the DC power line bus into multiple digital data streams, and includes a digital processor for filtering and applying error correction to the digital data streams to produce a decoded digital data stream.

Minimizing interference between communication networks

Methods, systems, and devices are described for minimizing mutual interference between networks that implement different protocols. In one embodiment, a first network device of a first network may exchange coexistence information with a second network device of a second network to determine whether to share resources or reduce transmit power based, at least in part, on the interference detected at the first network device from a transmission of the second network device. In one embodiment, both the first and the second network devices may independently and iteratively reduce their respective transmit power to minimize interference between the interfering networks. The first network device may reduce its transmit power based on an interference of the second network device and vice versa. In another embodiment, the network device with a lower priority may minimize its transmit power to reduce interference with the network device with a higher priority.

Method and apparatus for adjusting a mode of communication in a communication network

Aspects of the subject disclosure may include, for example, a waveguide system for detecting a condition that adversely affects a propagation of electromagnetic waves generated by the waveguide system on a surface of the wire, and adjusting characteristics of the electromagnetic waves generated by the waveguide system to reduce adverse effects caused by the condition. Other embodiments are disclosed.

Interference Control in a Broadband Powerline Communication System

A broadband powerline communication system makes use of knowledge of the spectrum characteristics of a local radio environment in order to improve system performance. A determination is made of the spectrum characteristics of a radio environment in the vicinity of the broadband powerline communication system that is transmitting data on modulated carrier frequencies. In order to avoid interference, certain ones of the carrier frequencies otherwise used by the broadband powerline communication system may be selectively masked based on the determination. The spectrum characteristics may be determined 1) in advance and used to compile a configuration database comprising frequency masking parameters; 2) by monitoring the local radio environment using the transmitter/receiver nodes of the system; or 3) based upon receipt of an indication from a conflicting user that the user is experiencing interference. Various combinations of these spectrum characteristic determination techniques may also be used.

MULTI-FEED DIELECTRIC ANTENNA SYSTEM AND METHODS FOR USE THEREWITH

In accordance with one or more embodiments, an antenna system includes a dielectric antenna having a feed point, wherein the dielectric antenna is a single antenna. At least one cable having a plurality of conductorless dielectric cores is coupled to the feed point of the dielectric antenna, wherein electromagnetic waves that are guided by differing ones of the plurality of conductorless dielectric cores to the dielectric antenna result in differing ones of a plurality of antenna beam patterns. 1. An antenna system , comprising:a dielectric antenna including a feed point, wherein the dielectric antenna is a single antenna; andat least one cable comprising a plurality of conductorless dielectric cores integrally coupled to the feed point of the dielectric antenna;wherein electromagnetic waves that are guided by differing ones of the plurality of conductorless dielectric cores to the dielectric antenna result in differing ones of a plurality of antenna beam patterns.2. The antenna system of claim 1 , wherein the dielectric antenna operates to generate a wireless signal at an aperture of the dielectric antenna resulting from propagation of the electromagnetic waves through the dielectric antenna.3. The antenna system of claim 1 , wherein the at least one cable includes a dielectric cladding that supports the plurality of conductorless dielectric cores.4. The antenna system of claim 3 , wherein the at least one cable further includes an outer jacket.5. The antenna system of claim 3 , wherein the at least one cable lacks a conductive shield layer.6. The antenna system of claim 3 , wherein the plurality of conductorless dielectric cores has a first dielectric constant claim 3 , wherein the dielectric cladding has a second dielectric constant claim 3 , and wherein the first dielectric constant exceeds the second dielectric constant.7. The antenna system of claim 3 , wherein the dielectric cladding comprises a low density dielectric material.8. The antenna system of claim 1 ...

Network infra integration system

본 발명은 네트워크 인프라 통합 시스템에 관한 것으로, 종래에는 서로 다른 네트워크간의 데이터 공용을 위하여 사용하는 라우터는 고가이므로 경제성이 떨어지고, 또한 가정내 전화선을 이용한 네트워크는 일반적으로 전력선에 비해 상대적으로 단자수가 적고 아울러 집안 곳곳에 존재하지 않기 때문에 추가적인 배선이 불가피하며, 또한 전력선을 이용한 네트워크의 경우에는 가전정보기기에 접속되는 모뎀이 규격화되지 않아 규격이 다른 모뎀을 사용하는 가전정보기기는 네트워크에 접속하지 못하는 문제점이 있다. 따라서, 본 발명은 다수의 가전정보기기가 PNA모뎀을 통해 전화선에 연결되어, 다수의 가전정보기기가 상호간에 통신하고 또한 어플리케이션 및 데이터를 공용하는 제1 네트워크와, 다수의 가전정보기기가 커플러가 부착된 PNA모뎀을 통해 전력선에 연결되어, 다수의 가전정보기기가 상호간에 통신하고 또한 어플리케이션 및 데이터를 공용하는 제2 네트워크와; 상기 제1 네트워크와 제2 네트워크를 상호 접속되게 하여, 각각의 어플리케이션 및 데이터를 실은 신호가 브리지 되도록 하는 네트워크 브리지로 구성하여 전력선을 이용한 네트워크와 전화선을 이용한 네트워크를 고가의 라우터를 사용하지 않고 하나의 단일망으로 구현함으로써 비용이 절감되는 효과가 있고, 또한 규격화되지 않은 전력선 모뎀 대신에 규격화된 PNA모뎀을 사용하게 되어 호환성을 증가시키고 아울러 전력선,전화선 모두를 이용하므로 네트워크에 대한 접근성을 향상시키는 효과가 있다. The present invention relates to a system for integrating network infrastructure. In the past, routers used for data sharing between different networks are inexpensive, and thus economical. Also, networks using domestic telephone lines generally have fewer terminals than power lines. Additional wiring is inevitable because it does not exist all over the house. Also, in the case of a network using a power line, the modem connected to the home appliance information device is not standardized. Therefore, the home appliance information device using a modem having a different standard cannot be connected to the network. have. Accordingly, in the present invention, a plurality of home appliance information devices are connected to a telephone line through a PNA modem, so that a plurality of home appliance information devices communicate with each other and share applications and data. A second network connected to a power line via an attached PNA modem, wherein a plurality of home appliance information devices communicate with each other and share applications and data; The first network and the second network are connected to each other, and a network bridge is formed so that signals carrying respective applications and data are bridged so that a ...

적응형 전력선 통신 장치 및 통신 방법

본 발명은 적응형 전력선 통신 장치 및 통신 방법에 관한 것으로, 송신단 및 수신단에서 각각 선로의 임피던스를 보상해주기 위해, R,L,C 소자를 조합하여, 각기 다르거나 동일한 임피던스 값을 갖도록 구성한, 다수의 임피던스 회로로 이루어진 임피던스 보상부와; 송신단 및 수신단의 각 제어수단으로부터 선로의 채널 이득에 따라 출력된 임피던스 제어 신호에 의해, 상기 임피던스 보상부의 각 임피던스 회로를 온/오프 시키는 스위칭부를 포함하여 구성함으로써, 가변하는 선로의 특성 변화에 따라, 자동으로 선로의 임피던스 값을 바꾸어 대역의 이득을 조절하여 최적의 통신 상태를 이룰 수 있도록 하는 효과가 있으며 또한, 본 발명을 통신망의 모뎀 설계에 적용하여 설계할 경우 모뎀 설치시에 특별한 조정을 하지 않더라도 거리나 부하에 따라 변하는 선로 특성에 적절히 대응할 수 있도록 하여 모뎀 설치 및 추후 A/S에 소요되는 비용을 절감할 수 있는 효과가 있다.

Power line communication system using optical coaxial mixed network and communication equipment used in this power line communication system

電力線搬送受信器

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Automatic terminal equipment and Method for measuring power influence using it

본 발명에 따른 전력 유도 잡음 전압을 측정하기 위한 자동 종단 장치는 시험번호가 부여된 상태로 전화국사내의 교환기와 연결되고, 측정자가 측정 장치를 통해 상기 시험번호로 전화를 걸면 상기 자동 종단 장치가 종단 처리를 수행하여 상기 측정 장치가 전력 유도 잡음 전압을 측정할 수 있도록 하는 기술에 관한 것이다. The automatic termination device for measuring the power induced noise voltage according to the present invention is connected to an exchange in a telephone company with a test number assigned thereto, and the automatic termination device terminates when the measurer calls the test number through a measurement device. It relates to a technique for performing processing to enable the measurement device to measure power induced noise voltage. 본 발명은 측정자가 전력 유도 잡음 전압 측정을 위해 두 대의 단말을 사용하던 종래 방식에 비해 어디에서든 측정 장치를 이용하여 시험번호로 전화를 걸면 종단 처리가 행해져 편리하게 전력 유도 잡음 전압을 측정할 수 있다는 효과를 갖는다. According to the present invention, when the user dials a test number using a measuring device anywhere compared to the conventional method of using two terminals for measuring the power induced noise voltage, the termination process is performed to conveniently measure the power induced noise voltage. Has an effect.

Distribution line carrier system

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Power line communication device for signal blocking and signal transfer function

본 발명은 전력선 통신 장치에 관한 것으로서, 3상 전력이 전송되는 제1 내지 제3 전력라인들 및 중성라인; 상기 제1 내지 제3 전력라인들에 하나씩 설치되어 특정 주파수대의 신호가 통과되지 못하게 차단하는 제1 내지 제3 블록킹 필터들; 상기 제1 내지 제3 전력라인들과 상기 중성라인 사이에 하나씩 설치되어 상기 특정 주파수의 신호를 바이패스시키는 제1 내지 제3 바이패스 필터들; 및 상기 제1 내지 제3 전력라인들과 상기 중성라인 사이에 설치되며, 상기 제1 전력라인으로 입력된 신호를 상기 제2 전력라인 및 제3 전력라인으로 전달하는 신호 결합기를 구비함으로써 제조 가격이 감소되며, 선간 신호 전달 특성이 향상된다. The present invention relates to a power line communication apparatus, comprising: first to third power lines and a neutral line to which three-phase power is transmitted; First to third blocking filters installed on the first to third power lines one by one to block a signal of a specific frequency band from passing through; First to third bypass filters installed one by one between the first to third power lines and the neutral line to bypass the signal of the specific frequency; And a signal combiner installed between the first to third power lines and the neutral line to transmit a signal input to the first power line to the second power line and the third power line. The line signal transmission characteristics are reduced.

Method of preventing the receiving malfunction due to the subsequent oscillation of a phase pulse signal

Communication device

Method and apparatus for managing wireless communications based on communication paths and network device positions

Aspects of the subject disclosure may include, for example, different groups of network devices mounted on utility poles. The different groups of network devices can be arranged along different paths. A communication path for transmitting wireless signals can alternate between the different groups of network devices. Other embodiments are disclosed.

Power line communication system

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Transmission medium having multiple cores and methods for use therewith

Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can include a plurality of cores for selectively guiding an electromagnetic wave of a plurality of electromagnetic waves longitudinally along each core, and a shell surrounding at least a portion of each core for reducing exposure of the electromagnetic wave of each core. Other embodiments are disclosed.

Apparatus for controlling operations of a communication device and methods thereof

Aspects of the subject disclosure may include, for example, a transmission system having a coupling device, a bypass circuit, a memory and a processor. The coupling device can facilitate transmission or reception of electromagnetic waves that propagate along a surface of a transmission medium. The memory can store instructions, which when executed by the processor, causes the processor to perform operations including restarting a timer to prevent the bypass circuit from disabling the transmission or reception of electromagnetic waves by the coupling device. Other embodiments are disclosed.

Method and apparatus for adjusting a mode of communication in a communication network

Aspects of the subject disclosure may include, for example, a waveguide system for detecting a condition that adversely affects a propagation of electromagnetic waves generated by the waveguide system on a surface of the wire, and adjusting characteristics of the electromagnetic waves generated by the waveguide system to reduce adverse effects caused by the condition. Other embodiments are disclosed.

Apparatus and methods for dynamic impedance matching of a guided wave launcher

Aspects of the subject disclosure may include, for example, a guided wave launcher generates, in response to an output RF signal, a guided electromagnetic wave along a surface of a transmission medium, wherein the guided electromagnetic wave propagates along the surface of the transmission medium without requiring an electrical return path, and wherein the guided electromagnetic wave has a non-optical carrier frequency. A mismatch probe generates a mismatch signal based on the output RF signal, wherein the mismatch signal indicates an impedance mismatch of the guided wave launcher. A controller generates one or more control signals in response to the mismatch signal, wherein the one or more control signals adjust one or more adjustable circuit elements of an impedance matching circuit, wherein adjustment of the one or more adjustable circuit elements facilitates reducing the impedance mismatch of the guided wave launcher. Other embodiments are disclosed.

Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium

Aspects of the subject disclosure may include, for example, a system for detecting an accumulation of a liquid on a transmission medium that may interfere with the propagation of guided electromagnetic waves on a surface of the transmission medium, and directing a device to remove at least a portion of the liquid accumulating on the surface of the transmission medium to mitigate the interference. Other embodiments are disclosed.

Method and apparatus for surveying remote sites via guided wave communications

Aspects of the subject disclosure may include, for example, a surveying system operable to receive a plurality of electromagnetic waves via a guided wave transceiver that include environmental data collected via a plurality of sensors at a plurality of remote sites. Weather pattern data is generated based on the environmental data. Other embodiments are disclosed.

Method and apparatus for repeating guided wave communication signals

Aspects of the subject disclosure may include, for example, a guided wave repeater system operable to receive via a guided wave transceiver a first plurality of electromagnetic waves that includes a first communication signal. A second plurality of electromagnetic waves that includes a second communication signal is transmitted via the guided wave transceiver. The first plurality of electromagnetic waves and the second plurality of electromagnetic waves are guided by a power line of a utility pole. A third communication signal is received from a smart grid device. A fourth communication signal is transmitted to the smart grid device. Other embodiments are disclosed.

Multi-feed dielectric antenna system and methods for use therewith

In accordance with one or more embodiments, an antenna system includes a dielectric antenna having a feed point, wherein the dielectric antenna is a single antenna. At least one cable having a plurality of conductorless dielectric cores is coupled to the feed point of the dielectric antenna, wherein electromagnetic waves that are guided by differing ones of the plurality of conductorless dielectric cores to the dielectric antenna result in differing ones of a plurality of antenna beam patterns.

Method and apparatus for adjusting a mode of communication in a communication network

Aspects of the subject disclosure may include, for example, a waveguide system for detecting a condition that adversely affects a propagation of electromagnetic waves generated by the waveguide system on a surface of the wire, and adjusting characteristics of the electromagnetic waves generated by the waveguide system to reduce adverse effects caused by the condition. Other embodiments are disclosed.

Transmission medium having multiple cores and methods for use therewith

Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can include a plurality of cores for selectively guiding an electromagnetic wave of a plurality of electromagnetic waves longitudinally along each core, and a shell surrounding at least a portion of each core for reducing exposure of the electromagnetic wave of each core. Other embodiments are disclosed.

Noise cancellation method and apparatus

Spread spectrum meter reading system utilizing low speed frequency hopping

A spread spectrum meter reading system enables the use of high power frequency hopping spread spectrum (HFSS) transmission at both the encoder transmitter and repeater levels of the meter reading system. A plurality of end point encoder transmitter devices (RF devices) are each connected to a utility meter and transmit high power FHSS signals containing metering data for the corresponding utility meter. A plurality of intermediate transceiver units (PET Repeaters) both receives and retransmits the high power FHSS signals. The base station (PETRC Base Unit) can receive the high power FHSS signals from both the encoder transmitter devices and the intermediate transceiver units. The intermediate transceiver units aggregates metering data from multiple encoder transmitter devices prior to block retransmission of the metering data to the base station. The high power FHSS signals are transmitted at a maximum hopping rate to reduce power consumption and increase battery life of the devices.

Asynchronous power line transmission apparatus

본 발명은 비동기 전력선 전송장치에 관한 것으로 특히, 비동기방식의 신호검출방식을 사용하게 되므로 동기방식을 사용하는 기존의 전력선 전송방식과 비교하여 송, 수신간의 동기화의 어려움을 피할 수 있게 됨은 물론 보다 간단화된 송, 수신장치의 구성과 신뢰성이 높은 초고속 데이터 전송속도를 제공할 수 있도록 함에 목적이 있다. 이러한 목적의 본 발명은 피씨(PC)등의 디지털 단말기로부터의 송출 데이터 펄스를 전력선으로 결합시키기 위하여 출력 펄스의 상승 에지와 하강 에지를 각각 일정 시간폭의 정(+)과 부(-)의 충격펄스 즉, 임펄스로 변환시키는 임펄스화 회로부(130)와, 이 임펄스화 신호를 전력선 전송에 적합한 서로 위상 반전된 1싸이클 또는 1/2싸이클의 정현파적 충격펄스 즉, 임펄스 무선신호로 변환시키는 임펄스 무선신호화회로부(135)를 구비한 송신 회로부와; 전력선(140)으로부터 임펄스 무선신호를 수신하기 위한 수신신호 결합 및 잡음제거부(150)와, 상기에서의 수신 신호를 소정 레벨 증폭하고 다시 잡음을 제거하기 위하여 일정 레벨 이상을 클리핑하는 증폭 및 레벨 클리핑부(160)와, 이 증폭 및 레벨 클리핑부(160)로부터의 출력 신호에 대하여 송출 데이터 펄스의 상승에지와 하강에지에 대응되는 임펄스 무선신호의 정(+)과 부(-)를 분리, 검출하는 임펄스 무선신호 분리 검출부(170)와, 이 임펄스 무선신호 분리 검출부(170)의 출력으로 되는 정(+)의 임펄스 구간을 정(+)의 셋트펄스로, 부(-)의 임펄스 구간을 정(+)의 리셋트 펄스로 구성한 다음 이들 펄스를 1싸이클의 임펄스 무선신호에 대응하는 셋트-리셋트의 펄스 쌍과 리셋트-셋트의 펄스 쌍으로, 시간상으로 배열하여 펄스 쌍을 만든 다음 이 펄스 쌍들의 첫 번째 임펄스만을 검출하여 송출 데이터 펄스 신호를 재생하는 데이터 펄스 재생부(180)를 구비한 수신 회로부로 구성한다. The present invention relates to an asynchronous power line transmission apparatus, and in particular, because the asynchronous signal detection method is used, compared to the conventional power line transmission method using a synchronous method, it is possible to avoid the difficulty of synchronization between transmission and reception, as well as simpler The purpose of the present invention is to provide a high-speed data transmission rate with high configuration and reliable transmission and reception devices. The present invention for this purpose has a positive (+) and negative (-) impact of a predetermined time width to the rising edge and the falling edge of the output pulse in order to combine the transmission data pulses from the digital terminal such as PC (PC) to the power line An impulse circuit unit 130 for converting a pulse, that is, an impulse, and an impulse radio for converting the impulse signal into a phase-inverted one-cycle or half-cycle sinusoidal shock pulse, that is, an impulse radio signal suitable for power line ...

Multi-carrier communication apparatus with adaptive transmission according to transmission path fluctuations

本发明提供一种通信装置，其具有：A/D转换器，用于将接收到的模拟信号转换成数字信号；转换器，用于转换接收信号以便能够处理相位信息；载波检测器，用于检测接收信号的存在与否；同步电路，用于从接收信号中提取同步定时；均衡器，用于校正接收信号以消除传输路径的影响；传输路径估计器，用于估计电力线传输路径的状态并且确定发送设备中的码元映射器中的每一子载波使用的一次调制的多值电平；和判断单元，用于通过使用阈值来判断经均衡器修正的接收信号。