In one embodiment, the method includes inserting an access node along a subscriber loop, the access node including a bypass switch for initially connecting a terminal segment of the subscriber loop to a network segment of the subscriber loop; operating a legacy communication service over the subscriber loop; and connecting a PSE for reverse power feeding of the access node and a new subscriber device for operating the new broadband communication service to the terminal segment. The method further includes, by the PSE, transmitting a sequence of successive command signals over the terminal segment prior to the insertion of the power feeding signal; by the access node, accumulating an electrical charge from the command signals; by the access node and by means of the so accumulated electrical charge, detecting a valid command signal in the sequence of successive command signals, and thereupon configuring the bypass switch for connecting the terminal segment to a transceiver and to a PSU; by the PSE, injecting the power feeding signal over the terminal segment for reverse power feeding of the access node; and operating the new broadband communication service over the terminal segment.

A transmitting device may include a logic circuit, a transmission controller, and a transmission driver. The encoder may generate transmission control signals based on control symbols. The transmission controller may generate driving control signals based on the transmission control signals. The transmission driver may drive a wire to one level among multiple levels, based on the driving control signals.

Scalable telecommunications systems and methods are provided. In one embodiment, a node unit for a scalable telecommunications system comprises: a plurality of universal digital RF transceivers each configured to communicatively couple the node unit to external equipment; one or more universal digital transport interfaces each configured to communicatively couple the node unit to a respective transport link; a universal backplane communicatively coupled to the universal digital RF transceivers and universal digital transport interfaces; and a system controller; wherein each of the universal digital RF transceivers is configured to couple to a respective modular power amplifier and a modular duplexer inserted within the node unit. The system controller is configured to detect capabilities of at least one of the universal digital RF transceivers, the universal digital transport interfaces, the universal backplane, the modular power amplifier and modular duplexer, and adjust parameters of the node unit in response to the detected capabilities.

An EHF receiver that determines an initial slicing voltage level and dynamically adjusts the slicing voltage level and/or amplifier gain levels to account for characteristics of the received EHF electromagnetic data signal. The architecture includes an amplifier, detector, adaptive signal slicer, and controller. The detector includes a main detector and replica detector that convert the received EHF electromagnetic data signal into a baseband signal and a reference signal. The controller uses the baseband signal and reference signal to determine an initial slicing voltage level, and dynamically adjust the slicing voltage level and the gain settings of the amplifier to compensate for changing signal conditions.

A communication node is connected to a transmission line which transmits a differential signal changeable between a high level and a low level and has a high potential signal line and a low potential signal line as a pair of signal lines. The communication node includes: an inter-line potential detector that detects an intermediate potential between the pair of signal lines; a node potential detector that detects an intermediate potential of an operation power source voltage which is supplied to the communication node; and a voltage adjuster that detects a difference between the intermediate potential detected by the inter-line potential detector and the intermediate potential detected by the node potential detector, and adjusts the operation power source voltage in accordance with the difference.

A transmission device according to the disclosure includes a plurality of driver sections and a controller. The plurality of driver sections are each configured to transmit a signal using a first voltage state, a second voltage state, and a third voltage state, and to be able to set a voltage in each of the voltage states. The third voltage state is a state between the first voltage state and the second voltage state. A controller causes the plurality of driver sections to perform emphasis by setting an emphasis voltage in each of the driver sections on the basis of skew information.

A method of manufacturing an electronic device for providing galvanic isolation includes forming a dielectric layer on a semiconductor body and integrating, in the dielectric layer, a galvanic isolation module, the integrating including forming a first metal region at a first height of the dielectric layer. A second metal region is formed at a second height greater than the first height of the dielectric layer, the first and second metal regions being at least one of capacitively and magnetically coupleable together. Forming the second metal region includes etching selective portions of the dielectric layer to form at least one trench having a side wall coupled to a bottom wall through rounded surface portions, and filling each trench with metal material to form the second metal region having rounded edges.

A regenerative differential receiver includes, for example, a transformer arranged to receive a modulated differential signal. A first detector is arranged to source a first output current for indicating a first power level in response to falling voltage of a first line of the modulated differential signal. A second detector is arranged to sink a second output current for indicating a second power level in response to rising voltage of a first line of the modulated differential signal. A cross-coupled latch is arranged to latch a state in response to the first and second power levels. The cross-coupled latch provides, for example, weak non-linear regeneration for increasing receiver gain and maximum operating frequencies.

A transmission device of the present disclosure includes: a driver unit that transmits a data signal with use of a first voltage state, a second voltage state, and a third voltage state interposed between the first voltage state and the second voltage state, and is configured to make a voltage in the third voltage state changeable; and a controller that changes the voltage in the third voltage state to cause the driver unit to perform emphasis.

There is disclosed a method of controlling an envelope tracking amplification stage comprising an envelope modulated power supply, the method comprising: determining a shaping function to be applied to an envelope signal for controlling the envelope modulated power supply in dependence on a system linearity objective in a region of operation of the amplifier in which the output power of the amplifier is dependent upon the supply voltage; and determining a pre-distortion function to be applied to an input signal to be amplified in dependence on a further linearity objective of the system, in a region of operation of the amplifier in which the output of the amplifier is dependent upon the input power to the amplifier.