Abstract: A transmission characteristic adjustment device includes: a setting process portion that sets a setting value concerning each transmission characteristic of a plurality of electric signals to at least one of a sending device that sends the plurality of electric signals and a receiving device that receives the plurality of electric signals; a generation process portion that acquires each error rate calculated based on identification information included in each of the plurality of electric signals whenever the setting value is changed, and generates a table on which a plurality of sets of the setting value and the error rate are recorded; and an adjustment process portion that adjusts the setting value based on the table.

Abstract: A communication circuit includes a receiver circuit that provides differential communication by using first and second transmission paths which transmit first and second signals. The receiver circuit includes a compensation circuit that compensates for the attenuation of a current when common mode noise is superimposed on the first signal and on the second signal. The compensation circuit includes a first compensation circuit and a second compensation circuit. The first compensation circuit detects an electric current attenuation of the first signal when the common mode noise is superimposed thereon, and compensates for the attenuation thereof by adding the detected electric current attenuation to the second signal. The second compensation circuit detects an electric current attenuation of the second signal when the common mode noise is superimposed thereon, and compensates for the attenuation thereof by adding the detected electric current attenuation to the first signal.

Abstract: Method for communication channel coordination between nodes, each node including at least one of a transmitter and a receiver, for transmitting and receiving signals over residential electrical cables. The residential electrical cables include at least one active wire, one neutral wire and one ground wire, at least two of the wires forming wire pairs. The method includes the procedures of, for a given one of the receiver, examining the transmitter in each one of the nodes which communicates with the receiver, selecting one of the examined transmitters as a primary transmitter, determining an optimal receive wire pair for the receiver to receive the signals transmitted between the primary transmitter and the receiver, informing all the examined transmitters of the determined optimal receive wire pair, and tracking at least one communication characteristic over the determined optimal receive wire pair.

Abstract: A system including a first receiver that generates a first set of decoded codewords; and a first canceller that cancels, in response to any decoded codeword of the first set of decoded codewords failing CRC and a first decoded codeword from the first set of decoded codewords passing CRC, interference of a first codeword on a second set of codewords which includes the plurality of codewords and excludes the first codeword. The system further includes a second receiver that generates a third set of decoded codewords by decoding the second set of codewords; and a second canceller that cancels, in response to any decoded codeword of the third set of decoded codewords failing CRC and a second decoded codeword from the third set of decoded codewords passing CRC, interference of a second codeword on a fourth set of codewords.

Abstract: Efficient synchronization techniques that support multiple reference clocks in an EQAM device. Consider a plurality of different modulators in the EQAM device receiving data from a corresponding plurality of different sources having corresponding different timing references (i.e., different source reference clocks). To accommodate this, the modulators all operate using a common system clock, and each modulator is provided with a phase synchronizer. The phase synchronizer synchronizes the modulated symbol phases to the corresponding reference clock.

Abstract: Methods and devices that establish communication between a first station and a second station are provided. To this end, an identifier, which identifies the first station and the second station as communication partners for communication, is transmitted between the first and second stations on a first partial connection. After receiving the identifier, communication is started between the first and second stations via a communication connection, wherein the transmission of the identifier via the first partial connection and the communication connection are based on different physical connections. The methods and systems can be used for loading or unloading processes of electrical vehicles, such as autonomous systems in the hospital field, or for vehicles for personal transportation. The methods and systems may provide reliable and cost-effective communication between the first and second stations.

Abstract: A serial communication apparatus includes a slew rate control circuit, an output circuit, a detection circuit, and a switching circuit. The slew rate control circuit has a predetermined impedance, and supplies a constant current from an output according to an input signal. In the output circuit, first capacitance is charged and discharged by the constant current from the slew rate control circuit. The output circuit outputs a digital signal from an output terminal according to a drive voltage. The noise detection circuit detects noise propagated from the output terminal, and outputs a switching signal according to a detection result. The switching circuit switches an impedance of the slew rate control circuit to a value smaller than the predetermined impedance according to the switching signal.

Abstract: Methods and systems for communicating data between an aircraft and a ground-based unit are provided. The method includes integrating a Broadband over Power Line (BPL) module and inductive coupler into the ground-based unit, communicatively coupling the aircraft to the ground-based unit, initiating a Broadband over Power Line (BPL) link between the aircraft and the ground-based unit when power is supplied to the aircraft, and updating data stored in the aircraft with data received from the ground-based unit.

Abstract: Methods, systems, and a Broadband over Power Line (BPL) module cover assembly for enabling communication between an aircraft and a ground-based network are provided. The BPL module cover assembly includes a connection interface configured to be coupled to and receive power from a stringer connector and a BPL network interface coupled to and configured to receive power from said connection interface. The BPL module cover assembly also includes a fuse interface including a plurality of fuses coupled between the connection interface and the BPL network interface. The fuse interface is configured to prevent power provided by the connection interface from damaging the BPL network interface in the event of an electrical fault.

Abstract: Aspects of the present disclosure are directed toward receiver devices and methods of using receiver devices. One such method can include converting, using an analog-to-digital converter (ADC), and an analog input signal from power distribution lines that carry power using alternating current (AC) to a digital form. This input digital signal can be an oversampled digital signal, where the digital signal is oversampled relative to downstream processing (e.g., FFT-based processing). A processing circuit(s) can then be used to decimate the input digital signal according to a decimation rate. A reference signal can be generated by the processing circuit that is responsive to the decimation rate. The processing circuit can also be used to detect a change in a phase difference between the AC and reference signal and to modify, in response to detecting a change in the phase difference, the decimation rate to counteract the detected change in the phase difference.

Abstract: An agile switched-load transmitter for a communications system for a power distribution network comprises a resonant transponder (T1) with a variable primary frequency. The transmitter significantly increases the bandwidth for communications, significantly lessens the effect of bandwidth noise, and greatly improves both the quality of communications and data throughput. Switches (S1, S2) selectively connect the transponder to the communications systems and control current flow through a resonant circuit of the unit, particularly the timing between charging and discharging of a capacitive component thereof. This allows the frequency of operation of the transmitter to be controlled so an inbound signal has a frequency within a range of selected frequencies, rather than a fixed frequency, and enables the transponder to deliver an output signal of relatively high power that propagates through the power distribution network with relatively little loss in signal strength.

Abstract: A method of power line communications includes obtaining timing information for an AC mains signal transmitted on a power line in a power line communication (PLC) system that includes at least one receiver and at least one other device connected on the power line which provides variable loading during cycles of the AC mains signal. A first loading interval within at least a first cycle of the cycles having lower loading and at least a second loading interval within said first cycle having higher loading are identified using the timing information. At least one data packet is transmitted only during the first loading interval over the power line to the receiver.

Abstract: Power line communication apparatuses, which are serially connected with power line. The power line communication apparatus may include a bypass unit to be serially connected to power line, and pass a communication signal that flows along the power line; a coupling circuit to be connected to two ends of the bypass unit, and couple the communication signal to the power line; an analog front end (AFE) unit to transform an input/output analog signal so that the input/output analog signal is transferred to the power line, and transfer the input/output analog signal to the coupling circuit unit; and a controller to transfer the communication signal, which is to be transferred through the power line to the AFE unit.

Abstract: A transmission line matable to a differential signal source, includes a first connector having a impedor and a first differential terminal pair, a second connector having a conversion module and a second differential terminal pair, and a wire electrically connected to the first and the second connectors. A differential signal received by the first differential terminal pair of the first connector at one end of the transmission line is processed by the impedor and then is converted into a single-ended signal transmitted on the wire. Then the conversion module restores the single-ended signal to the differential signal, and the differential signal is output from the second differential terminal pair of the second connector at the other end of the transmission line.

Abstract: A smart utility network (SUN) device that includes an orthogonal frequency-division multiplexing (OFDM)-based transmitter. The OFDM-based transmitter including a signal processor to convert data from a frequency-domain to a time-domain using an inverse fast Fourier transform (IFFT) and configured to perform a time-domain windowing function based on a Hanning window on OFDM symbols.

Abstract: A system and method for operating an amplifier system is provided. The amplifier system includes an input providing a direct coupling configured to receive a high-frequency input signal having a frequency in at least one of a radiofrequency (RF) and microwave range. The amplifier system also includes an amplifier including a dielectric material separating at least two superconducting layers forming an amplifier loop configured to receive the high-frequency input signal and deliver an amplified signal. The amplifier system includes an output providing a direct coupling configured to deliver the amplified signal.

Abstract: Systems and methods are described for the implementation of a full band cable receiver by using a combination of tuners (e.g., ultra-low power Tuners) and Analog-to-Digital Converters (ADCs) to attain the goal of digitization with reduced power and/or cost. The full-band capture cable receiver can overcome the constraints of conventional cable receiver systems and deliver multiple channels, thereby allowing operators to provide consumers with an increased number of services.

Abstract: In a receiver circuit, a binary signal is generated based on a signal level of a received signal that has been received via a transmission line from a driver of a transmitter circuit. Then, a first stable state and a second stable state are detected based on a reference signal whose signal level changes in accordance with the received signal. In the first stable state, the received signal is stable at a first signal level. In the second stable state, the received signal is stable at a second signal level. When the first stable state is detected and the received signal is changed from the first signal level into the second signal level, the generated binary signal is retained at a signal level corresponding to the second signal level, until the second stable state is detected.

Abstract: A power line data transmitter includes a power circuit including a transistor and a modulation circuit. The transistor has an input terminal to which a voltage of a DC power source is inputted from a DC power line, a control terminal applied with a constant voltage bias, and an output terminal supplied with an electric power. The modulation circuit includes a power supply node, operates when the electric power is inputted, and outputs a data modulation signal. The power circuit functions as a data transmitter to perform a power line transmission. When the data modulation signal is outputted, (i) a potential of the output terminal changes, (ii) the power circuit changes a voltage between the control terminal and the output terminal, (iii) the power circuit changes another potential of the input terminal, and (iv) the power circuit superimposes the data modulation signal on the DC power line.

Abstract: An RF hardline coaxial cable plant to facilitate voice and/or data services to subscriber premises in one or more neighborhood nodes of a cable communication system by conveying upstream information over an upstream path bandwidth. One or more upstream radio frequency (RF) signals have a carrier frequency of between approximately 5 MHz and 19.6 MHz and are modulated using quadrature amplitude modulation (QAM) with voice and/or data information constituting at least some of the upstream information. An example RF signal defines a channel having an average channel power, and a highest value for an average noise power between 5 MHz and 19.6 MHz in the upstream path bandwidth of a given neighborhood node, as measured over at least a 24 hour period, is at least 25 decibels (dB) below the average channel power and/or less than 20 decibels (dB) above a noise floor associated with the neighborhood node.

Abstract: A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.

Abstract: A transmission circuit is formed such that plural driver units of each driver circuit are connected together in parallel. A code setting section detects a voltage Vms output from a replica circuit corresponding to a driver unit of a driver circuit, and detects a voltage Vmo output from a replica circuit corresponding to one driver unit of the driver circuit, and based on a ratio of the voltages Vms, Vmo, sets operation numbers Na to Nd of driver units for each of the driver circuits such that the output resistance value of each of the driver circuits becomes pre-set output resistance values Roa to Rod. The driver circuit has a number of driver units according to the operation number connected together in parallel and operating.

Abstract: A computer-implemented method of transferring data from a source to a destination on an alternating current (AC) power waveform propagating over a utility power distribution network, where the computer includes a processor operatively coupled to the utility power distribution network via a power supply, includes sending a request over the power distribution network to create a virtual communication channel between the source and the destination on the power distribution network. The method further includes generating, by the processor, a data packet to be transmitted from the source to the destination via the virtual communication channel, and modulating the power drawn from the power supply to encode a series of static pulses onto the AC at predetermined intervals according to a function of frequency that is unique to the virtual communication channel.

Abstract: A method for supplying at least one bus user via a control unit, in which data are transmitted to at least one bus user during at least one phase for data transmission and power is transmitted during at least one phase for power transmission, the at least one phase for data transmission and the at least one phase for power transmission being provided alternately, and the lengths of the phases for data transmission and/or the lengths of the phases for power transmission being set variably.

Abstract: Disclosed are various embodiments for communicating information between various electronic components. A local device may comprise a transmitter to convert communication signals into modulated signals. Modulated signals are injected into a shared power supply line. The remote device may comprise a receiver for identifying the injected signal, demodulating the injected signal, and processing the demodulated signal.

Abstract: A transmitter for use in a cable modem termination system includes a data processing module that generates a plurality of OFDM symbols from a data packet. A probe symbol generator generates a probe symbol, as one of a plurality of probe symbol types. The probe symbol is selectively inserted within the plurality of OFDM symbols, at a pre-defined probe symbol interval.

Abstract: A method and apparatus for maintaining network connectivity over power lines is disclosed. Such network connectivity is maintained even if various customers are covered by different power line networks or if one or more power lines in a network are unavailable to transmit data. More particularly, in order to bridge a gap in a power line network, one or more messages are extracted from a first node in a power line network and are then transmitted to a second node via free space transmission, illustratively wireless radio frequency (RF) transmission conforming to one or more of the 802.11a, b or g standards. When those messages are received at the second node, the message is injected back into the power line on the other side of a gap in power line coverage. This method of transmission backup will continue until power line connectivity is restore upon which the preferred method will be selected and used.

Abstract: A transmitter for transmitting data signals to at least one communications device over a wired network on a plurality of carriers is provided, wherein the carriers are located in frequencies being allocated by one or more radio services, wherein each of the radio services is allocated to one or a plurality of frequency bands, the transmitter comprising a symbol generator configured to generate symbols based on the data signals; a processor configured to generate copies of the symbols and to determine an allocation of the copies onto the plurality of carriers, wherein a first copy and a second copy of each symbol are allocated to carriers located in frequency bands that are allocated to different radio services; and a modulator configured to modulate the copies of the symbols on the carriers in accordance with the determined allocation.

Abstract: According to one embodiment, a communication device communicates with N remote units. Each remote unit includes a plurality of antennas, wireless transmitting units, and wireless receiving units. The communication device is provided with a received signal processing unit, to which received signals by a plurality of the wireless receiving units are combined and input, and which specifies the remote unit subjected to interference, and a switch which decreases a reception gain of the wireless receiving unit included in N?1 remote units out of the N remote units in a predetermined measurement section. The received signal processing unit calculates a correlation value between the combined received signals and a reference signal transmitted by a user terminal connected to another base station system in the measurement section and specifies the remote unit subjected to the interference by the second user terminal based on the correlation value.

Abstract: A method is disclosed for detecting packet at a receiving system in a Multi-Carrier Modulation (MCM) system. The method starts with receiving a signal at the receiving system. Then a deviation value of the signal is computed, where the deviation value is computed at least partially based on phase differences between some number of carriers in the preamble. The deviation value is compared with a threshold to determine whether a packet has been detected from the received signal. In response to the determination that a packet has been detected, a symbol offset is computed optionally, where the symbol offset indicates a number of sample points from a beginning of a symbol.

Abstract: A method and a corresponding device for reducing enhanced noise generated as a result of applying vectoring to signals transmitted and subsequently received over a plurality of copper telephone loops involve receiving a set of intermediate values, which correspond to estimates of the transmitted signals. The intermediate values are generated by applying a vectoring procedure to initial samples of the received signals. The intermediate values are demodulated. At least one demodulated value is selected as a final estimate of a corresponding transmitted signal. The initial samples are then refined by removing each initial sample that has a corresponding selected demodulated value. The vectoring procedure, the demodulating, the selecting, and the refining are each repeated using the refined samples in place of the initial samples to generate new intermediate values that have reduced noise.

Abstract: A portable audio networking system is provided that includes master devices and slave devices in communication over cables adapted to simultaneously transport a digital audio signal, DC power, and a data signal. Master devices are configured to receive a digital audio signal, distribute power, and transceive a data signal, and slave devices are configured to transmit the digital audio signal to master devices, receive the power from master devices, and transceive the data signal with master devices. Slave devices can include wireless audio receivers that receive an RF signal containing an audio signal from wireless audio transmitters. Master devices can include gateway interconnection devices that act as hubs and routers for the system. The reduction in the number of cables compared to traditional systems results in less weight for crew members to carry and easier setup of the system. Remote control of wireless audio transmitters is also enabled.

Abstract: A powerline communication adapter may couple powerline communication signals between a network device and a powerline communication network. The powerline communication adapter may comprise of a first electrical connector including an electrical socket and a second electrical connector including an electrical plug. The powerline communication adapter may include a coupling unit coupled between the first electrical connector and the second electrical connector. The coupling unit may be configured to couple a powerline communication signal received via the first electrical connector to the second electrical connector to transmit the powerline communication signal via at least two powerline communication channels in the powerline communication network.

Abstract: A Power Line Communication (PLC) device that is resilient to cross-band interference. The PLC device is configured to communicate on AC power wiring in the frequency range of 9 kilohertz to 500 kilohertz and does not use automatic gain control prior to analog-to-digital conversion. The PLC device includes an over-sampled analog-to-digital converter with a sample clock of at least 10 megahertz and includes a loop filter that maintains a noise power spectral density that does not exceed three decibels above a minimum noise floor, of the noise power spectral density, at 80 kilohertz or above, and a digital filter and decimator configured to remove quantization noise, where a decimation factor of the decimator is such that it provides an output decimation rate between 350 kilohertz and 1.6 megahertz.

Abstract: A method is disclosed for detecting packet at a receiving system in a Multi-Carrier Modulation (MCM) system. The method starts with receiving a signal at the receiving system. Then during the plurality of symbol durations, a set of phases of the signal for each symbol duration is obtained, where each phase is a phase of a carrier of the number of carriers. Then a set of phase variances for each carrier of the number of carriers is obtained, where each phase variance is a difference of phases of a carrier in different symbol durations. Then a phase variance value based on the set of phase variances is computed and it is compared with a threshold to determine whether a packet has been detected from the received signal.

Abstract: Systems and methods are provided, for estimating a channel based on previous channel estimations from the same source. Embodiments disclosed herein enable removal of the timing variation (from burst to burst) so that the channel can be more accurately estimated. Embodiments provide several systems and methods for averaging channel estimation information from each of the bursts. The systems and methods disclosed herein advantageously improve channel estimation accuracy and reduce modulation error.

Abstract: A stable Low Power Mode (LPM) for multicarrier transceivers is described that at least provides transmit power savings while enabling receiver designs that can easily operate without the detrimental effects of fluctuating crosstalk. In one exemplary embodiment, the LPM achieves power savings by reducing the number of used subcarriers without actually performing a power cutback on those subcarriers, thereby allowing a receiver to measure the SNR or noise levels and determine the crosstalk noise on the line regardless of a crosstalking modem being in a LPM or not.

Abstract: A Power Line Communications (PLC) device includes a processing module, memory, and a communication interface. The PLC device determines, at a PLC Physical Layer (PHY), a noise cycle of a power main coupled to the PLC interface. Based upon the noise cycle, the PLC device determines a higher noise period and a lower noise period of the noise cycle and then allocates, by a PLC Media Access Control (MAC) layer, first communication operations in the higher noise period and differing second communication operations in the lower noise period. Such operations may include adjusting framing of PLC MAC layer frames to have a first frame construct during the higher noise period and second frame construct during the lower noise period. Other differences in operations may be coding operations, either block or channel codes, QoS operations, restricting communications, redundant Acknowledgement (ACK) operations, or differing PLC standardized operations during the differing periods.

Abstract: A charging station performs communications by use of a superimposing/separating unit configured by connecting a capacitor, a coupling transformer and a capacitor to branch lines branching out respectively from a control cable and a grounded cable. An electric vehicle performs communications by use of a superimposing/separating unit configured by providing a coupling transformer to the control cable. A capacitor is also connected between the control cable and the grounded cable. Communications are allowed by the configuration of a closed loop circuit comprising the control cable, the branch line, the capacitor, a primary coil of the coupling transformer, the capacitor, the branch line, the grounded cable, the capacitor, and a primary coil of the coupling transformer.

Abstract: Provided are methods and systems for terrestrial data transmission between aircrafts and external networks, such as airline and/or airport computer systems. When an aircraft is parked at the gate, the aircraft is connected to and powered by an electrical cable, such as a stinger cable. This cable may be also be used for wired data transmission between the aircraft and the gate using broadband over power line (BPL) technology. The gate and the aircraft are each equipped with a BPL module. The aircraft may include other communication modules, such as a Wi-Fi module, a cellular module, and/or an Ethernet module. These other modules can be also used for data transmission in addition to or instead of communication through the BPL module. A communication link manager may be used to select one or more communication modules depending on availability of communication links, costs, speed, and other parameters.

Abstract: A system and method for communicating information through a powerline medium including at least three conductors, where the transmitter transmits at least two signals onto the powerline medium and the receiver receives one or more signals from the powerline medium. The transmitter adjusts the power transmitted into the powerline medium in order to set the adjusted transmit power to a predetermined level, e.g., a level that ensures power radiated from the powerline medium does not exceed a regulatory limit. The process of adjusting the transmit power may take into account a functional relationship between the transmitted power and properties of the channel.

Abstract: Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method, an apparatus, and a system for processing signals based on a twisted pair. The method for processing signals based on a twisted pair includes: determining a signal processing manner; performing, according to the signal processing manner, digital processing on signals of the extended channels that are to be sent to convert the signals of the extended channels into common mode signals of each twisted pair; and sending the converted common mode signals of the each twisted pair to corresponding twisted pairs for transmission.

Abstract: Provided is an information processing apparatus including a frame generator for generating a frame by adding, to data, a header indicating a beginning position of the data, an encoder for encoding the frame generated by the frame generator according to a specific coding scheme, and generating encoded data expressed by mutually different first and second-bits, a cycle changer for changing a coding cycle in a header section by controlling the encoder, and a line coding unit for performing line coding on the encoded data generated by the encoder, and generating an encoded signal which expresses the first-bit in a form of a plurality of first levels and the second-bit in a form of a plurality of second levels different from the first levels such that a same level does not occur consecutively and for which a polarity of the level is inverted every half cycle of a clock.

Abstract: A wireless communication apparatus includes: plural antennas; a channel matrix acquiring unit acquiring a channel matrix for each sub-carrier; a channel matrix encoding unit encoding the acquired channel matrix of each sub-carrier, by decomposition from signals in fixed-point representation into data and amplitude parts with a predetermined bit width; and a channel matrix information delivery unit delivering the encoded channel matrix information to a communication party. The encoding unit retrieves a first maximum value as the maximum of channel matrix elements in all sub-carriers, in plural levels, and determines an amplitude part and a normalization coefficient for normalizing channel matrix elements to a data part having the predetermined bit width, based on a ratio between a second maximum value as the maximum of channel matrix elements with respect to each sub-carrier and the first maximum value, and multiples channel matrix elements by the normalization coefficient to obtain a data part.

Abstract: Systems, methods, and processor readable media for distributing digital data and electrical power to a plurality of devices over high-impedance cables are disclosed. Certain embodiments include a gateway device connected to a power source, a first device connected to the gateway device by a cable, the cable being a high-impedance cable having at least two conductive paths, and wherein the first device receives electrical power and digital data from the gateway device via the cable over the same conductive path of the cable, a second device connected to the gateway device by the cable wherein the second device receives power and digital data from the gateway device via the cable over the same conductive path, and wherein the power source provides power to the first and second devices via the cable, and wherein the second device is connected to the gateway device through the first device via a daisy-chain topology.

Abstract: 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.

Abstract: Provided is an information processing apparatus which includes a first module including a signal addition unit that generates an addition signal by adding a data signal to a clock, a signal subtraction unit that generates a subtraction signal by subtracting the data signal from the clock, a first signal transmission unit that transmits the addition signal through a first transmission line, and a second signal transmission unit that transmits the subtraction signal through a second transmission line, and a second module including a data component extraction unit that extracts a component of the data signal by subtracting the subtraction signal received through the second transmission line from the addition signal received through the first transmission line, and a clock component extraction unit that extracts a component of the clock by adding the subtraction signal received through the second transmission line to the addition signal received through the first transmission line.

Abstract: Disclosed is a communications interface to connect to a first device and to establish a communication between the first device and a second device over a medium. The communications interface comprises at least one common mode choke having a first end configured to connect to an Ethernet transceiver of the first device. The communications interface further comprises an optional capacitor having a first end coupled to a second end of the at least one common mode choke and having a second end configured to connect to the medium. The communications interface does not include any transformers connected to the second end of the at least one common mode choke. The Ethernet communications is readily adaptable to differential-pair cabling and applications in harsh electromagnetic interference environments, such as automotive, aero-space, air crafts, water crafts, trains, railroad and marine applications, where high rejection of EMI is required.

Abstract: Method, systems, and apparatus include a communication device configured to receive a data unit in accordance with a power line communications protocol, to extract data within the data unit to provide extracted data, and to process the extracted data in accordance with a non-power line communication protocol. Embodiments also describe a communication device configured to format data according to a non-power line communication protocol as part of a data unit conforming to a power line communication protocol, to redundantly encode the data unit across a plurality of subcarriers in accordance with the second communication protocol, and to transmit the data unit in accordance with the second communication protocol to another communications device.

Abstract: A high speed video cable carries signals according to the High-Definition Multimedia Interface (HDMI), and includes a raw cable and may include a boost device. The raw cable includes coaxial lines which are covered by an outer metallic braid. Each of four high speed video signals is carried on the inner conductors of a pair of coaxial lines. Lower speed signals are carried on the galvanically or capacitively coupled shields of a pair of coaxial lines, as well as the braid of the cable, thus permitting fourteen HDMI signals to be carried in a cable comprising only eight coaxial lines, resulting in a simpler and lower cost production and assembly of the cable.