Abstract: An apparatus attenuates pseudo-differential signals on a plurality of conductors. The apparatus may also attenuate one or both of differential signals and common mode signals on the conductors. The signals may be Power Line Communication (PLC) signals. The apparatus includes a choke including a plurality of mutually coupled windings. The windings of the choke include a first winding and a plurality of second windings, the first winding having a number of turns equal to the sum of the number of turns of the second windings. Each of the second windings may have a substantial leakage inductance. The apparatus may further include one or more capacitors electrically coupled between windings of the choke.

Abstract: A device for generating at least one frequency-stable periodical signal, including: a generator configured to generate at least one first periodical signal with frequency spectrum that includes at least two lines at different frequencies fa and fb; a first switchable injection-locked oscillator configured to receive at an input the first periodical signal and to be locked, in a first state, to the frequency fa, and in a second state, to the frequency fb, as a function of a value of at least one control signal applied at the input of the first switchable injection-locked oscillator.

Abstract: A frequency synthesis device, including: a first generator configured to generate a periodical signal with a frequency f1; a second generator, coupled to the first generator and generating from the signal with a frequency f1 a signal SG corresponding to a train of oscillations with a frequency substantially equal to N·f1, with a duration lower than T1=1/f1 and periodically repeated at the frequency f1; a third generator generating, from the signal SG, m periodical signals SLO_CH1 to SLO_CHm with frequency spectra each include a main line with a frequency fLO_CHi corresponding to an integer multiple of f1, with 1?i?m, the third generator operating as a band-pass filter applied to the signal SG and discarding from the frequency spectra of each of the periodical signals SLO_CH1 to SLO_CHm lines other than the main line with a frequency fLO_CHi.

Abstract: The invention concerns a high voltage driver comprising: first and second cascoded transistors (102, 104) adapted to generate an output signal (VOUT) based on a first voltage signal (VSL) having a first voltage range and on a second voltage signal (VSH) having a voltage range shifted with respect to the first voltage range, the output signal having a second voltage range greater than the first voltage range; and a pulse generator (128) comprising a passive high-pass filter adapted to generate voltage pulses based on at least one of the first and second voltage signals and to provide the voltage pulses to a control node of at least one of the first and second transistors.

Abstract: The present disclosure describes a device, system, and techniques for separating power line communication (PLC) signals, produced by a PLC modem, from AC mains power, which powers the PLC modem. In some aspects a universal PLC splitter is described that includes an AC mains power input with a line connection, a neutral connection, and a protective earth connection, and a filter coupling the line connection, the neutral connection, and the protective earth connection of the AC mains power input to a line connector, a neutral connector, and a protective earth connector of a socket. The filter suppresses the PLC signals on the AC mains power connections, and provides AC mains power to the socket to power the PLC modem under test. The PLC signals from the PLC modem are coupled to test signal ports for connection to test instruments.

Abstract: Device for emitting-receiving signals in two symmetrical frequency bands in relation to a first frequency FCA and such that each one of the bands comprises symmetrical channels in relation to second frequencies FCLA, FCUA, comprising: a first circuitry generating a signal of frequency FA, a signal of frequency FB=FA/N1, a signal of frequency F1=|FCA?FCLA| and a periodic signal of frequency F2 equal to the difference between a central frequency of one of the channels and the associated second frequency, and wherein FA=N1·(FCLA+F1)/(N1+1); a second circuitry able to carry out non-linear operations between the signals of frequencies FA and F1 and those of frequencies FB and F2, generating multitone signals comprising the frequencies FA?F1, FA+F1, FB?F2 and FB+F2.

Abstract: A sheet material dispenser is provided for a utensil item that allows a user to dispense individual sheets of material, such as adhesive notes, tape, or paper material, from the upper end of a writing utensil or similar tool. The device comprises one of a sheet material housing or support, whereby individual sheets are dispensed from the upper end of the utensil and the device remains connected to the utensil item while the utensil item is used. The housing comprises one of a rectangular or rounded housing with an elongated slot therealong to dispense individual sheets of material. The upper end of the housing is secured closed using an end cap. The sheet material support comprises a U-shaped assembly that supports a stack of exposed sheets for individual dispensation. The lower end of each device comprises an aperture adapted to secure to the upper end of the utensil.

Abstract: Systems and techniques relating to wireless communications are described. A described system includes an input port configured to receive an alternating current (AC) waveform from a power line that is external to the apparatus; coupling circuitry coupled with the input port; power line communication (PLC) circuitry coupled with the coupling circuitry, configured to use the coupling circuitry to transmit and receive PLC signals via the power line, where the coupling circuitry and the PLC circuitry are electrically exposed to the AC waveform via the input port; a communication port coupled with the PLC circuitry, configured to provide PLC network access via the PLC circuitry; a filter coupled with the input port, configured to remove the PLC signals from the AC waveform and to produce a filtered AC waveform; and an output port coupled with the filter, configured to provide the filtered AC waveform.

Abstract: A system for transmitting and receiving data includes a physical adaptation block configured to separate the data into a plurality of frequency bands. Each of the frequency bands has an associated symbol time, and each of the associated symbol times is a whole multiple of one half of a smallest symbol time of all of the frequency bands. An analog front end is configured to provide the data in the plurality of frequency bands to a transmission medium.

Abstract: A system for detecting a Zero Crossing point is provided. The system includes: a coupling unit connected between a high voltage side and a low voltage side of the system; and a zero crossing detector connected to the high voltage side and configured to divide a filtered mains voltage signal and to generate an output signal that indicates a zero crossing point of the filtered mains voltage signal.

Abstract: A first node including a physical layer device, a first transceiver and a second transceiver. The first transceiver includes a first analog front end connected to a first transmission line. The first analog front end is configured to transfer first data between the physical layer device and a second node via the first transmission line. The second transceiver includes a second analog front end connected to a second transmission line. The second analog front end is configured to transfer second data between the physical layer device and a third node via the second transmission line. A first type of the second transmission line is different than a second type of the first transmission line. The first node is configured to perform as a repeater using data repeating functions at a link layer control level.

Abstract: An electrical device includes signal ports, transformers, and a differential mode device. The transformers are in communication with the signal ports, respectively. The transformers are configured to receive input signals, respectively, from the signal ports. Each transformer is configured to inject the respective input signal onto a pair of output lines of the transformer. The differential mode device is connected to a first output line of the pair of output lines of a first transformer exclusive of connection to a second output line of the first transformer. The differential mode device is configured to inject a signal from the first output line onto the pair of output lines of a second transformer. Signals from the pair of output lines of the second transformer are injected onto a pair of conductors, respectively, of a communications medium.

Abstract: A device is configured to inject signals onto a medium made up of conductors and a reference plane. Transformers inject the signals onto the conductors by orthogonal modes. Differential mode chokes each include one input and two outputs. The input is connected to one end of a secondary winding of one of the transformers, or one of the outputs of another one of the chokes. The two outputs are connected to either the inputs of two others of the chokes, the input of another one of the chokes and a conditioner of one of the conductors, or conditioners of two of the conductors. The number of chokes depends on a number of non-differential modes used. The injections that use the chokes are injections selected from between pseudo-differential injections, injection in common mode, or a combination of pseudo-differential injections and injection in common mode.

Abstract: A device for demolding negatives in plastic injection, which is coupled to means for ejecting a plastic injection mold. A guide bushing can be attached to the die plate of the moveable part of the mold, inside which extends a counter-mold which molds the negative and is formed by a guide runner and a head that can be lowered to demold the negative. The guide bushing contains a projection which pushes against the side of the head as the counter-mold moves forward, so that the head is lowered sideways and the negative is released.

Abstract: A transmission medium includes inductive couplers, signal lines and conductors. Each of the signal lines is configured to receive a respective one of multiple input signals. Each of the signal lines extends through at least one of the inductive couplers and is configured to inductively transmit one of the input signals to the at least one of the inductive couplers. Each of the conductors is configured to extend through at least two of the inductive couplers. The conductors include a first conductor and a second conductor. The inductive couplers are configured to inductively transmit the input signals to the conductors to generate a first current and a second current. The first current flows in the first conductor and towards an output of the first conductor. The second current flows in the second conductor and towards an input of the second conductor.

Abstract: A system for detecting a Zero Crossing point is provided. The system includes: a coupling unit connected between a high voltage side and a low voltage side of the system; and a zero crossing detector connected to the high voltage side and configured to divide a filtered mains voltage signal and to generate an output signal that indicates a zero crossing point of the filtered mains voltage signal.

Abstract: The invention relates to a single-port signal repeater. The repeater is connected in parallel to the communication means (3), on which only one access point (5) is needed. The repeater (4) comprises an amplifier, a hybrid circuit and a feedback and increases the range and transmission capacity for communications made on a conducted medium without the drawbacks of traditional repeaters, which have to interrupt the line and need two access points to the channel.

Abstract: A transmission medium includes inductive couplers, signal lines, and conductors. Each of the signal lines is configured to receive a respective one of multiple input signals. Each of the signal lines extends through at least one of the inductive couplers and is configured to inductively transmit one of the input signals to the at least one of the inductive couplers. Each of the conductors is configured to extend through at least two of the inductive couplers. The conductors comprise a first conductor and a second conductor. The inductive couplers are configured to inductively transmit the input signals to the conductors to generate a first current and a second current. The first current flows in the first conductor and towards an output of the first conductor. The second current flows in the second conductor and towards an input of the second conductor.

Abstract: A node and procedure configured for their use in a data signal communication system through N different means of transmission. The node comprises N independent AFEs. Each AFE is configured to receive or transmit the signal on a corresponding means of the N different means of transmission.

Abstract: The techniques described herein permit the application of methods for increasing the performance of a communications system on a medium made up of N conductors and a reference plane by means of injecting signals inductively in up to N combinations of the conductors, including injection in common mode, such that said injected signals can be made to be orthogonal to each other.