16results about "Line-transmission" patented technology

A two-wire transmitter is provided. The two-wire transmitter is connected to an external circuit via two transmission lines, uses the external circuit as a power source, and outputs a current signal to the external circuit. The two-wire transmitter includes a measurement data processing circuit connected to a sensor that outputs an electric signal based on measurement data, outputs a first signal based on the measurement data; a current output circuit that determines the current signal based on the first signal; and a shunt adjustment circuit that determines a circuit voltage of the two-wire transmitter based on the first signal.

A device includes first and second terminals configured to be respectively connected to first and second conductors of a differential two-wire bus. First and second identical resistive dividing bridges are connected between a reference node and respectively first and second nodes. Third and fourth identical resistive dividing bridges are connected between a supply node and respectively the first and second nodes. A reading circuit is configured to determine a binary state of the bus from the currents flowing through transistors of the reading circuit.

The present invention relates to an apparatus for setting a communication ID of an energy storage system, the apparatus comprising: a power converter for selecting one power line from among a plurality of power lines to supply power through the selected power line; and battery managers which are sequentially connected to the power converter and are operated by the power selectively supplied through the one power line selected from among the plurality of power lines, wherein the power converter may communicate with one battery manager which is operated by the supplied power from among the battery managers.

A power converter and a data collector. A power line communication (PLC) chip in the power converter can transmit a data signal on a first frequency band, and transmit a control signal on a second frequency band. Signals of different types can be transmitted on the first frequency band and the second frequency band, and the first frequency band and the second frequency band do not overlap each other. Therefore, interference between the signals of different types can be effectively avoided, and simultaneous transmission of the signals of different types can be implemented. This not only effectively enhances flexibility of signal transmission, but also effectively avoids a transmission delay caused by a transmission conflict between the signals of different types in the PLC system, ensuring high timeliness for the data collector to perform data query and scheduling control on the power converter.

To provide an automatic measurement device and method that can automatically measure, in a device connected to a PTP network, whether the device itself has stable time synchronization accuracy after starting up of the device to be measured and continuously achieve that trial.SOLUTION: An automatic time synchronization stability measurement device 10 includes: a control and monitoring terminal 1 that controls and monitors measurement; a USB contact converter 2 that converts a USB signal transmitted from the control and monitoring terminal 1 into a contact signal; a power supply controller 3 that is connected to the USB contact converter 2 and turns on / off power according to the contact signal; a measuring instrument 4 for measuring time synchronization stability; a device-to-be-measured 5 that is connected to a PTP network and has an oscillator and a PLL circuit inside; a reference device 6 that receives a time synchronization signal and generates a reference signal that matches the time synchronization signal required by the measuring instrument 4; and a PTP network 7 through which the time synchronization signal is transmitted.SELECTED DRAWING: Figure 1

Disclosed example configurations include a playback device configured to, among other features, (i) receive reference clock timing; (ii) receive two or more data streams, where each data stream includes audio content and playback timing; (iii) for each data stream, generate sample-rate adjusted audio content for the data stream by adjusting a sample rate of at least a portion of the audio content of the data stream to compensate for a difference between a rendering clock at the playback device and the reference clock; (iv) generate a mix of the sample-rate adjusted audio content of the two or more data streams at the playback device; and (v) play the mix of the sample-rate adjusted audio content of each data stream based on a clock time of the rendering clock at the playback device and the playback timing information for each data stream.

Devices, systems, and methods for an internal reflection cancelling full duplex node. The internal reflection cancelling full duplex node is a full duplex node with a coupler and a tunable coupler impedance matching network coupled to the coupler. The a coupler is coupled to a downstream line, an upstream line, and a common line. A power choke is coupled in parallel between the common line and ground. A common impedance matching network is interposed in the common line between the power choke and the output port.

In an example there is provided a first integrated circuit. The first integrated circuit is configured to receive an audio signal and configured to drive an audio transducer based on the received audio signal. The first integrated circuit is configured to transmit a portion of the audio signal to a second integrated circuit.

An infotainment system comprises an audio playback system with more than two loudspeakers (102) and an audio acquisition device with a microphone (109). The microphone (109) outputs a microphone signal (113) containing a speech signal and audio signals from the audio playback system. The infotainment system further comprises an upmix stage (301) that generates an intermediate signal (303) with L channels and an output signal (201) with N channels from an input signal (104) with M channels, each of which is fed to a loudspeaker (102) of the audio playback system, where L < N. A compensation stage (112), which receives the microphone signal (113) as the useful signal and includes a filter (118), receives a reference signal (119) to generate a filtered signal (D) from the reference signal (119). The compensation stage (112) is designed to subtract the filtered signal (D) from the useful signal (113).The removal of unwanted signals is therefore less complex than with conventional infotainment systems because an intermediate signal with fewer channels than the output signal (201) is used as the reference signal (119) for the compensation stage (112).

A method of double talk detection includes using up-sampling. Audio signals received from the far end are up-sampled prior to output by the loudspeaker at the near end. The microphone at the near end captures audio at the up-sampled rate, and the audio output by the loudspeaker is detectable due to having no energy in the up-sampled frequency bands. The double talk detector uses this information to generate a signal for suppressing the echo of the far end audio from the captured audio signal that is transmitted to the far end.

To perform appropriate gain control while reducing the processing load of the processing unit. A frequency domain conversion unit configured to convert a first input signal of a time domain into a second input signal of a frequency domain, the first input signal being a reference signal that is input in a first time period from a reception-side signal path through which a received signal is transmitted to a speaker provided in a terminal; a gain determination unit configured to calculate a first gain based on the second input signal; and a gain multiplication unit provided in the reception-side signal path, and configured to multiply the received signal by the first gain are included. The reference signal is a signal after the received signal is multiplied by the first gain by the gain multiplication unit.

An example system includes a signal generator to output signals based on multiple carrier frequencies; a wired transmission medium for carrying the signals, where the wired transmission medium is configured as open ended to produce reflections on the wired transmission medium of the signals; and a signal analyzer to receive the reflections and to determine a transmission time of a signal along the wired transmission medium based on the reflections. The signal analyzer is configured to perform operations that include performing a search based on an estimated transmission time of the signal along the wired transmission medium and the reflections to determine the transmission time. The search is to determine which of multiple candidate transmission times to select for the transmission time.

A cable modem comprises transmitter circuitry, receiver circuitry, and memory. Upon power up of the cable modem in the field, the transmitter circuitry transmits one or more first signals into a network. The receiver circuitry measure echoes of the transmitted one or more first signals. The receiver circuitry generates an installation figure of merit based on the measured echoes and factory-calibration echo measurements stored in the memory. The communication device begins DOCSIS® network registration if the installation quality measurement meets a determined requirement and generates a notification to troubleshoot the installation of the communication device if the installation quality measurement does not meet a determined requirement.

A high-speed serial interface (HSIF) for communicating between an analog front end (AFE) and a radio via a bi-directional serial bit connection for an OFDM device.