Abstract: A system for demodulating and decoding received messages transmitted along a vehicle power line includes a reference signal generator, a timer, and a demodulation and decoding circuit. The circuit determines whether a message is present on the power line by identifying a symbol indicative of a message preamble, subsequently setting the timer to a time corresponding to a predetermined length of the message preamble, detecting, during the time, a plurality of symbols and determining whether the symbols indicate the presence of a message preamble. The circuit then extracts data from the message by activating the reference signal generator, adding the reference signal to the message to produce an equivalent signal, detecting a symbol in the equivalent signal indicative of the message data body, subsequently setting the timer to a time corresponding to a predetermined length of the message data body and detecting, during the time, a second plurality of symbols.

Abstract: Disclosed are a multi-mode virtual serial port chip, an implementation method, and a firmware downloading system and method thereof. The multi-mode virtual serial port chip comprises a normal operating mode and an enhanced operating mode, which are selected by a multiplexed auxiliary signal pin according to that whether there is a pull-down resistor connected thereto. The normal operating mode is compatible with the prior art and applications, and one-click automatic MCU firmware downloading can also be realized in the enhanced operating mode. In the present invention, no peripheral circuit is needed, the MCU also cannot unintentionally enter other modes, and the effects of automatically downloading firmware, improving downloading efficiency, reducing costs, reducing power consumption and decreasing product volume are achieved.

Abstract: A video processing circuit has a bus interface circuit configured to communicatively couple the video processing circuit to an imaging device over a multidrop differential serial link; detector circuits configured to detect sequentially occurring signaling states of the multidrop differential serial link, the sequentially occurring signaling states preceding a transition of the bus interface circuit from a low-power mode to a high-speed mode; and a controller configured to: cause the bus interface circuit to receive data transmitted over the multidrop differential serial link in the high-speed mode when a duration of each signaling state in the sequentially occurring signaling states exceeds a minimum duration defined for the each signaling state; and cause the bus interface circuit to return to the low-power mode when one signaling state of the sequentially occurring signaling states does not exceed a corresponding minimum duration defined for the one signaling state.

Abstract: A physical layer transceiver assembly includes physical layer transceiver circuitry having an input/output terminal configured for coupling to data channel medium, and an electrostatic discharge protection circuit coupled between the terminal and a ground of the assembly. The electrostatic discharge protection circuit includes a reactive filter network coupled to the terminal and configured to selectively limit current flow through the electrostatic discharge protection circuit, and an electrostatic discharge protection device coupled between the reactive filter network and the ground of the assembly. Where the electrostatic discharge protection device is a snapback device, the reactive filter network is configured to limit current at frequencies that adversely affect the snapback device.

Abstract: An antenna system may include an antenna operable in a selected frequency band of a plurality of frequency bands. In some examples, the antenna system may include an antenna circuit having an RF (radio frequency) communication path and one or more configurable elements in the RF communication path. The antenna system may include a transmission line coupled to the antenna circuit. The antenna system may include a control unit configured to modulate a control signal onto an RF signal to generate a transmit signal for communication over the transmission line to the antenna circuit. The antenna circuit may be configured to demodulate the control signal from the transmit signal. The antenna circuit may be operable to adjust the one or more configurable elements in the RF communication path based at least in part on the control signal to configure the RF communication path to operate in the selected frequency band.

Abstract: A method for transmitting data by using a power line. The method includes: setting i=1 and j=1; receiving an i-th zero crossing signal at a time point ti, and determining, based on the i-th zero crossing signal, a start time when synchronization signals of a j-th data packet are transmitted, the start time when the synchronization signals of the j-th data packet are transmitted being ti+t; transmitting the synchronization signals of the j-th data packet at the start time when the synchronization signals of the j-th data packet are transmitted; transmitting data signals of the j-th data packet in sequence; and determining whether j is equal to M; when j is not equal to M, continuing a data transmission; and when j is equal to M, ending the data transmission, M being a number of data packets into which data to be transmitted is divided.

Abstract: An interface circuit, a string, and a system that are applied to power line communication, to lower device specifications, includes: an inverter, an optimizer group, a capacitor, a magnetic ring, power lines, and a signal line. An optimizer in the optimizer group is configured to adjust a size of a direct current output by a photovoltaic module connected to the optimizer. Two ends of the signal line passing through the magnetic ring are connected to the inverter. Two ends of a power line passing through the magnetic ring are respectively connected to the capacitor and the optimizer group. By using the foregoing interface circuit, a high voltage of a direct current output by the optimizer group is prevented from being introduced into the inverter, thereby reducing a specification requirement of a device such as a capacitor.

Abstract: Described are techniques for detecting a topology in a data center. A measurement computing device is instructed to measure the output signal from an endpoint device attached to a connector portion of the computer cable used to connect a newly installed hardware device. Such a measurement value is compared with other measurement values that were previously obtained by a technician when the technician measured the output signal from various endpoint devices based on the same input signal prior to the installation of the hardware device. The measurement values that were obtained by the technician are correlated to the identifiers of the connectors of the computer cables in the data center. Upon identifying a matching measurement value, the connector of the computer cable connected to the newly installed hardware device is identified, including the location of the newly installed hardware device.

Abstract: Apparatus and methods for phase shifters with switched transmission line loads are provided herein. In certain embodiments, a phase shifter includes a first port, a first controllable reflective load, a second port, a second controllable reflective load, and a pair of coupled lines that are electromagnetically coupled to one another. The pair of coupled lines includes a first conductive line between the first port and the first controllable reflective load and a second conductive line between the second controllable reflective load and the second port. At least one of the first controllable reflective load or the second controllable reflective load includes a switched transmission line load.

Abstract: A PLC network system and method operative with OFDM for generating MIMO frames with suitable preamble portions configured to provide backward compatibility with legacy PLC devices and facilitate different receiver tasks such as frame detection and symbol timing, channel estimation and automatic gain control (AGC), including robust preamble detection in the presence of impulsive noise and frequency-selective channels of the PLC network. A PLC device may include a delayed correlation detector and a cross-correlation detector operating in concert to facilitate preamble detection in one implementation.

Abstract: A computer implemented method includes receiving, by a control system, an optimization problem expressed as a MWIS on a problem graph. Then encoding the MWIS problem into an energy spectrum of a problem Hamiltonian. Also, determining an XX-driver graph based on an identified independent-cliques (IC), where the edges in the XX-driver graph are the edges between partites in each clique of the IC. Also, determining XX-coupler strengths associated with the XX-driver graph, and specifying a non-stoquastic driver Hamiltonian based on the XX-driver graph and the associated XX-coupler strengths. Also, initializing and programming a time-dependent non-stoquastic system Hamiltonian of the quantum annealing hardware using determined values of parameters included in the problem Hamiltonian and determined values of parameters included in the non-stoquastic driver Hamiltonian.

Abstract: A ringing suppression circuit according to an embodiment includes a terminator, a switching element configured to connect the terminator between first and second bus lines, and a control signal generation circuit configured to accept a reception result of a signal from a reception circuit that receives the signal transmitted through the first and second bus lines, and generate a control signal for controlling the switching element on a basis of the reception result.

Abstract: A receiver that receives a multi-level signal includes a pre-amplifier circuit, a slicer circuit and a decoder circuit. The pre-amplifier circuit generates a plurality of intermediate data signals based on an input data signal and a plurality of reference voltages. The slicer circuit generates a plurality of decision signals based on the plurality of intermediate data signals and a clock signal. The decoder circuit generates output data based on the plurality of decision signals. The pre-amplifier circuit includes a first circuit and a second circuit. The first circuit generates one of the plurality of intermediate data signals based on the input data signal and one of the plurality of reference voltages, and has a first structure. The second circuit generates another one of the plurality of intermediate data signals based on the input data signal and another one of the plurality of reference voltages, and has a second structure different from the first structure.

Abstract: A transmission system includes: a hub to receive a control command from two or more controllers that control operation of an in-vehicle machinery installed in a train, and to control an output of the control command on the basis of a priority assigned to the control command, and a system-controller to determine an operating state of a controller that is a source of the control command, the system-controller being capable of changing a priority assigned to a control command transmitted from a controller whose operating state has been determined, on the basis of a determination result.

Abstract: A transmission system includes: an antenna; a control device including an RF circuit which transmits a first signal for controlling a radio wave to be outputted from the antenna and an external power supply which supplies direct current to the antenna; and a first transmission path which connects the antenna and the control device, and is used in transmission of the first signal and supplying of the direct current to the antenna.

Abstract: Multilevel command and address (CA) signals are used to provide commands and memory addresses from a controller to a memory system. Using multilevel signals CA signals may allow for using fewer signals compared to binary signals to represent a same number of commands and/or address space, or using a same number of multilevel CA signals to represent a larger number of commands and/or address space. A number of external command/address terminals may be reduced without reducing a set of commands and/or address space. Alternatively, a number of external terminals may be maintained, but provide for an expanded set of commands and/or address space.

Abstract: Multilevel command and address (CA) signals are used to provide commands and memory addresses from a controller to a memory system. Using multilevel signals CA signals may allow for using fewer signals compared to binary signals to represent a same number of commands and/or address space, or using a same number of multilevel CA signals to represent a larger number of commands and/or address space. A number of external command/address terminals may be reduced without reducing a set of commands and/or address space. Alternatively, a number of external terminals may be maintained, but provide for an expanded set of commands and/or address space.

Abstract: The present disclosure aims to provide a power wiring network apparatus capable of constructing a highly portable power wiring network, without the need to maintain infrastructure. A power wiring network apparatus of the present disclosure includes circuit elements each including a first connector, a second connector, and a conductive portion electrically connecting the first connector and the second connector. The circuit elements include energy harvesting elements as circuit elements capable of outputting power generated by energy harvesting and load elements as circuit elements capable of consuming inputted power. The circuit elements are mechanically and electrically attachable via the first connector and second connector. At least some energy harvesting elements and load elements are capable of power line data communication via a power line including the first connector, second connector, and conductive portion.

Abstract: The present technology provides solutions that enable accurate measuring of frequency response on a network (e.g., cable network, fiber optic network) through frequency sweep testing. In various embodiments, the present technology provides a remote transmitter test unit that can be physically deployed at various points in a network. The present technology provides for on demand sweep testing. A remote transmitter test unit or headend test unit can periodically transmit a query message and, based on a response to the query message, can initiate a sweep test. The present technology provides for automatic generation of a sweep profile for a sweep test. Based on an analysis of a frequency spectrum on a network, the sweep profile provides parameters for conducting a sweep test. The present technology provides for Orthogonal Frequency-Division Multiplexing (OFDM) table generation and OFDM sweep testing.

Abstract: A signal transmission device includes a communication unit that is connected to an electronic device by a signal wiring and performs communication with the electronic device via the signal wiring, a signal processing unit that performs signal processing related to the communication, a power supply unit that supplies direct current to the electronic device via the signal wiring, and a filter circuit connected between the signal wiring and the power supply unit. The filter circuit includes a plurality of filters having frequency characteristics different from each other, and the signal processing unit acquires communication quality information indicating quality of the communication in at least two or more frequency bands, and determines a state of the filter circuit based on the communication quality information.

Abstract: A method for determining a mode of transmission between two nodes of a power line communication network, the method comprising transmitting a first message from the first node to the second node in at least two frequency bands, said first message comprising, in each of the at least two frequency bands, information according to which a channel estimate is requested; the first node receiving at least one second message transmitted from the second node and comprising information representative of a channel estimate of at least one of the frequency bands in response to the first message; and determining a transmission mode for transmitting a third message to be transmitted based on the information received from the second node in response to the first message. The invention also relates to a device configured so as to execute the method.

Abstract: Transmission of baseband and carrier-modulated vector codewords, using a plurality of encoders, each encoder configured to receive information bits and to generate a set of baseband-encoded symbols representing a vector codeword; one or more modulation circuits, each modulation circuit configured to operate on a corresponding set of baseband-encoded symbols, and using a respective unique carrier frequency, to generate a set of carrier-modulated encoded symbols; and, a summation circuit configured to generate a set of wire-specific outputs, each wire-specific output representing a sum of respective symbols of the carrier-modulated encoded symbols and at least one set of baseband-encoded symbols.

Abstract: The present disclosure relates to multi-MAC controller and single PHY systems and methods. An example method may include transmitting, via a first device in a Data Over Cable Service Interface Specification (DOCSIS) network, a first block of data within a first time slot and at a first power level. The example method may also include transmitting, via a second device in the DOCSIS network, a second block of data within the first time slot and at a second power level, the second power level being based on an attenuation of the first network tap device associated with the first device, wherein the first power level is different from the second power level.

Abstract: The present disclosure aims to provide a power wiring network apparatus capable of constructing a highly portable power wiring network, without the need to maintain infrastructure. A power wiring network apparatus includes a wiring member, including first connectors and a conductive portion electrically connecting the first connectors to enable power supply, and circuit elements each including a second connector mechanically and electrically attachable to any first connector. The circuit elements include energy harvesting elements capable of outputting, from the second connector, power generated by energy harvesting and load elements capable of consuming power inputted from the second connector. At least some energy harvesting elements and load elements are capable of power line data communication via a power line including the first connectors and conductive portion.

Abstract: A transceiver circuit includes a first interface and a second interface that are connected to an optical transceiver device, a receiver circuit, a transmitter circuit, and a compensation circuit. The receiver circuit includes a differential amplifier, where a first phase input terminal of the differential amplifier is coupled to the first interface, and where a second phase input terminal of the differential amplifier is coupled to the second interface. The transmitter circuit includes a first transistor, where a terminal of the first transistor is coupled to the second phase input terminal, and where another terminal of the first transistor is coupled to a ground terminal. The compensation circuit is configured to provide a leakage path for the first phase input terminal, or provide a compensation current for the second phase input terminal.

Abstract: A breakout cable, including a first portion of the cable coupled to a network switch, wherein at least a first section of the first portion is located within a volume inside of side walls of the computing rack, the first section of the first portion including first and second connectors and extending in a first direction; a second portion of the cable including a third connector, the third connector coupled to the first connector of the first portion and the first network interface module connected to a first server, the second portion of the cable extending in a second direction transverse to the first direction; a third portion of the cable including a fourth connector and, the fourth connector coupled to the second connector of the first portion and the second network interface module connected to a second server, the third portion of the cable extending in the second direction.

Abstract: A method for transmitting a digital frame by an optical network unit in a digital communications network includes steps of arranging received data into a series of symbols, installing a primary cyclic prefix immediately preceding the series of symbols in time, and inserting individual ones of a plurality of secondary cyclic prefixes between each adjacent pair of symbols in the series of symbols. A length of each secondary cyclic prefix corresponds to a first duration shorter than an amount of time needed to turn on a laser of the optical network unit. The method further includes a step of providing to the optical network unit the digital frame. The digital frame includes the primary cyclic prefix, the plurality of secondary cyclic prefixes, and the series of symbols. The method further includes a step of modulating the provided digital frame by a laser of the optical network unit.

Abstract: Sold-state intravascular ultrasound (IVUS) imaging devices, systems, and methods are provided. Some embodiments of the present disclosure are particularly directed to compact and efficient circuit architectures and electrical interfaces for an ultrasound transducer array used in a solid-state IVUS system. In one embodiment, an intravascular ultrasound (IVUS) device includes: a flexible elongate member; an ultrasound scanner assembly disposed at a distal portion of the flexible elongate member, the ultrasound scanner assembly including an ultrasound transducer array; an interface coupler disposed at a proximal portion of the flexible elongate member; and a cable disposed within and extending along a length of the flexible elongate member between the ultrasound scanner assembly and the interface coupler. The cable includes four conductors electrically coupling the ultrasound scanner assembly and the interface coupler.

Abstract: A system for transmitting power and data through a two pin connection interface may have a first device having a power source, a first microcontroller with a first communication peripheral coupled with a first pin and a first control port coupled with a gate of a first MOSFET whose switch path couples the power source with the first pin; and a second device having a battery, a second microcontroller with a second communication peripheral coupled with a first pin and a second control port coupled with a gate of a second MOSFET whose switch path couples the battery with the first pin of the second device. When the devices are coupled, the MOSFETs are synchronously turned on and off, wherein during an off-cycle a data transfer between the first and second device takes place through the first and second communication peripherals of the first and second device, respectively.

Abstract: A method includes receiving a current velocity and a current position of a mobile node relative to a fixed node. The method also includes identifying a receive time slot for the fixed node to receive a transmission of a data packet from the mobile node and determining a propagation delay for the data packet between the mobile node and the fixed node based on the current position of the mobile node. The method includes determining a transmission time based on the receive time slot and the propagation delay and determining a Doppler shift based on the current velocity of the mobile node. The method includes determining a transmission frequency based on the Doppler shift and a clock rate correction. The method also includes transmitting the data packet to the fixed node at the determined transmission time using the determined transmission frequency compensated by the determined clock rate correction.

Abstract: Apparatus and methods for unified high-bandwidth, low-latency data services provided with enhanced user mobility. In one embodiment, a network architecture having service delivery over at least portions of extant infrastructure (e.g., a hybrid fiber coax infrastructure) is disclosed, which includes standards-compliant ultra-low latency and high data rate services (e.g., 5G NR services) via a common service provider. Premises devices are used to provide the 5G-based services to users at a given premises and thereabouts. In another variant, local area (e.g., “pole mounted”) radio devices are used to provide supplemental RF coverage, including during mobility scenarios. The 5G-capable network enables uninterrupted and “seamless” exchange of data at a client device by utilizing a common waveform protocol (e.g., 3GPP-based) at a premises device and an external radio device to communicate with a client device at different locations and times while the device is moving between inside and outside the premises.

Abstract: The invention relates to a method for operating a sensor arrangement (2) in a motor vehicle (1), wherein the sensor arrangement (2) has a central unit (3) and a plurality of sensor units (S1, S2, S3), the central unit (3) and the sensor units (S1, S2, S3) are connected to a bus cable (4) and via the bus cable (4) a communication takes place between the central unit (3) and the sensor units (S1, S2, S3) with the following steps: alternately carrying out a power supply phase (E) and a communication phase (K), supplying the sensor units (S1, S2, S3) with energy in the power supply phase (E), repeatedly carrying out a communication cycle in the communication phase (K), having the following steps: sending a command (F1, F2, F3) from the central unit (3) to at least one sensor unit (S1, S2, S3), receiving a response (A1, A2, A3) of a sensor unit (S1, S2, S3) in the central unit (3), receiving a respective energy status information item (ES1, ES2, ES3) from all sensor units (S1, S2, S3) in the central unit (3) an

Abstract: A transceiver is configured for a calibration mode of operation in which an impedance of a transmit chain is tuned responsive to a power measurement of a mixed RF calibration signal to form a tuned transmit chain. A direct conversion mixes an RF calibration signal with a DC offset signal to form the mixed calibration signal. During a normal mode of operation, a heterodyne mixer mixes an LO signal with an IF signal to produce an RF signal that is amplified through the tuned transmit chain.

Abstract: System and method for compensating for power loss due to a radio frequency (RF) signal probe mismatch in conductive RF signal testing of a RF data signal transceiver device under test (DUT). Sourcing the RF test signal with the RF vector signal transceiver at multiple test frequencies enables isolation of and compensation for power loss due to a mismatch between the RF signal probe and RF DUT connection based on predetermined losses of the RF signal path.

Abstract: A communication apparatus includes: a controller that determines a time stamp as a starting point and a unit period of the time stamp starting from the starting point; an encapsulator that synchronizes, starting from the starting point, a GPIO (General Purpose Input/Output) signal from a Master with the time stamp to generate one of a first GPIO packet including all pieces of sampling data sampled at a constant sampling period and a first GPIO packet including sampling data sampled at a sampling interval according to a frequency of logical changes of the GPIO signal and sampling position information; a LINK that generates an Up link packet including the first GPIO packet; and a PHY that transmits a transmission signal to a communication partner apparatus, the transmission signal conforming to a predetermined communication protocol and including the Up link packet.

Abstract: A charging station includes an alternating current (AC) electrical power input and at least one direct current (DC) electrical power module coupled to the AC electrical power input. The charging station also includes at least one station output having a vehicle DC electrical power output, a communications output, and a dispenser DC electrical power output, the dispenser DC electrical power output being configured to be coupled to at least one dispenser. The charging station further includes a communications hub including at least one communications network connection, the communications hub being configured to receive information relating to an amount of DC electrical power to be delivered to a particular dispenser coupled to the charging station.

Abstract: Disclosed is a transmitting device comprising two galvanically isolated sub-circuits. The first sub-circuit comprises: a carrier signal source for outputting a carrier signal; a digital signal source for outputting binary signal levels; and a logic component for performing an AND operation on two input signals. The second sub-circuit comprises: a signal input; a signal output; and a first RC element, the signal input, the signal output and the RC element being connected in parallel to one another with respect to a second reference potential. A first isolating capacitor is connected between the first logic output and the signal input for galvanic isolation. A second isolating capacitor is connected between the first reference potential and the second reference potential for galvanic isolation.

Abstract: A battery management system comprises a first battery cell controller; a second battery cell controller, the first battery cell controller and the second battery cell controller each monitoring a plurality of battery cells; and a galvanically isolated transmission line providing a point-to-point signal transmission path between the first battery cell controller and the second battery cell controller.

Abstract: Technologies for managing internal time synchronization include an internet-of-things (IoT) device configured to determine a transport delay value as a function of a transmit path delay corresponding to a first message transmitted from an I/O device of the IoT device to a central timer of the IoT device and a receive path delay corresponding to a second message transmitted from the central timer to the I/O device. The IoT device is further configured to update, in response to having received a broadcast message from the central timer subsequent to having determined the transport delay value, a timestamp value of the received broadcast message as a function of the transport delay value. Other embodiments are described herein.

Abstract: A transceiver device for a bus system. The transceiver device includes first and second bus terminals for connection to first and second signal line of the bus system, and a transmitting unit for outputting a bus transmission signal to the first and second bus terminals. The transceiver device includes an input connection for receiving a transmission input signal useable for controlling an operating state of the transmitting unit, and a detection device, which to detect the presence of a first predefinable condition and, if the first predefinable condition is present, to interconnect the first and second bus terminals via a predefinable electrical resistance for a predefinable first period of time.

Abstract: A controller comprises a controllably conductive device adapted to be coupled in series electrical connection between an AC power source and a load control device. The controller also comprises a control circuit coupled to the controllably conductive device for rendering the controllably conductive device conductive each half-cycle of the AC power source to generate a phase-control voltage. The control circuit is operable to render the controllably conductive device conductive for a portion of each half-cycle of the AC power source. The control circuit is operable to transmit a digital message to the load control device for controlling the power delivered to the load by encoding digital information in timing edges of the phase-control voltage, where the phase-control voltage having at least one timing edge in each half-cycle of the AC power source when the control circuit is transmitting the digital message to the load control device.

Abstract: Disclosed are high-speed data transmitting/receiving system and method capable of removing simultaneous switching noise and ISI at low cost and a small area. A transmitter used in the data transmitting/receiving system includes: a data mapping unit which maps 2-bit input data to one of codes, wherein the voltage level of a first signal line, the voltage level of a second signal line, and the voltage level of a third signal line are set in each of the codes; and a transmit driver which outputs data corresponding to the input data through the first signal line, the second signal line, and the third signal line having the voltage levels corresponding to the mapped code. Here, each of the voltage levels is ‘+1’, ‘0’ or ‘?1’, and the number of signal lines having the voltage level of ‘+1’ is the same as the number of signal lines having the voltage level of ‘?1’.

Abstract: In accordance with one embodiment, a method for a health scanning system is disclosed. The method includes receiving at least one electrical physiological data signal (PDS); suppressing a Direct Current (DC) signal component of the PDS to emphasize the Alternating Current (AC) signal component of the PDS; isolating the signal noise in the AC signal component of the PDS; and extracting a noise signature from the signal noise in the PDS. The noise signature, after calibration, can be used to uniquely identify a known user from other users.

Abstract: It is made possible to favorably perform signal transfer between a plurality of daisy-chain-connected devices. There is a communication line for performing communication between a first electronic device and a second electronic device. A data generating section generates first data to be transmitted to the first electronic device. Then, a data input section inputs the first data to a first position on the communication line. In addition, a first data suppressing section is provided at a second position on the communication line, the second position being closer to the second electronic device than the first position is, and the first data suppressing section prevents the first data from being sent to the second electronic device.

Abstract: Transmission of baseband and carrier-modulated vector codewords, using a plurality of encoders, each encoder configured to receive information bits and to generate a set of baseband-encoded symbols representing a vector codeword; one or more modulation circuits, each modulation circuit configured to operate on a corresponding set of baseband-encoded symbols, and using a respective unique carrier frequency, to generate a set of carrier-modulated encoded symbols; and, a summation circuit configured to generate a set of wire-specific outputs, each wire-specific output representing a sum of respective symbols of the carrier-modulated encoded symbols and at least one set of baseband-encoded symbols.

Abstract: A cable modem system for discovering interference groups (IGs) includes an infrastructure and a cable modem termination system (CMTS). The infrastructure is for transferring data. The CMTS is configured to initiate generation of test signals by a set of cable modems (CMs), obtain a set of test measurements for the set of CMs, discover interference groups (IGs) of the set of CMs based on the obtained set of test measurements and assign a plurality of upstream and downstream channels for the set of CMs that use orthogonal frequency division multiplexing (OFDM) based on the discovered IGs.

Abstract: A device of the present invention incorporates a data block, received from a Communication Module (CM) connected via an interface, into a frame of a specific format in which a preamble for data synchronization is placed at a head, and transmits the frame to the bus while taking only a data block formed in compliance with an arbitrary Communication Protocol (CP) from a series of frames of the specific format that are constituted from signals detected from the bus. When transmitting data to the bus, the device inserts a code indicating the arbitrary CP into a head part of the preamble, and when a signal corresponding to the head part of the preamble detected from the bus is identified as the code indicating the arbitrary CP, it takes a frame with the identified code to transfer a data block within the taken frame to the CM through the interface.

Abstract: Methods, apparatus, and systems for communication over a multi-wire, multi-phase interface are disclosed. A clock recovery method includes generating a combination signal that includes transition pulses, each transition pulse being generated responsive to a transition in a difference signal representative of a difference in signaling state of a pair of wires in a three-wire bus. The combination signal is provided to a logic circuit that is configured to provide a clock signal as its output, where pulses in the combination signal cause the clock signal to be driven to a first state. The logic circuit receives a reset signal that is derived from the clock signal by delaying transitions to the first state while passing transitions from the first state without added delay. The clock signal is driven from the first state after passing a transition of the clock signal to the first state.

Abstract: According to one embodiment, a digital isolator includes a first metal portion, a first insulating portion, a second metal portion, a third metal portion, and a first layer. The first insulating portion is provided on the first metal portion. The second metal portion is provided on the first insulating portion. The third metal portion includes first, second, and third portions. The first portion is provided around the first metal portion in a direction perpendicular to a first direction. The second portion is provided on a portion of the first portion with a first conductive layer interposed. The third portion is provided on the second portion and provided around the second metal portion in the perpendicular direction. The first layer contacts the first conductive layer and an other portion of the first portion and is provided around a bottom portion of the second portion.

Abstract: A centralising meter is connected to a data concentrator via a first powerline communication network and to remote basic meters via a second powerline communication network. The centralising meter emulates a smart electricity meter application with respect to the data concentrator for each remote basic meter, in order in particular to construct a corresponding load curve. When the ratio of an energy consumption declared by all the remote basic meters to an energy consumption measured by the centralising meter is below a predefined threshold and when furthermore a plurality of load curves show a drop to zero, a fraud is detected. The centralising meter compares total energy consumptions estimated from extrapolations of certain load curves with the measured energy consumption, to identify which remote basic meter is subject to the fraud.