The invention relates to a cable (12) and a male connector (10, 20) attachable to the cable (12) for transmission of power and data for use in power focused applications, in particular lighting applications. The male connector (10, 20) comprises a contact for power transmission (P), a contact for data communication (D) and optionally a contact for configuration signaling (C), wherein a conversion circuit (11, 21) is configured to translate the configuration signaling (C) to be transmitted via a single twisted pair of signaling wire together with the power transmission (P), and/or the data communication (D). Providing conversion circuitry within the connector allows to combine two or more signals received via respective connectors of the male connector and generate a combined signal to be transmitted over a single pair of twisted signal wire, the connector allows the usage of a cable with much higher flexibility.

Methods and devices for wired charging and communication with a wearable device are described. In one embodiment, a symmetrical contact interface comprises a first contact pad and a second contact pad, and particular wired circuitry is coupled to the first and second contact pad to enable charging as well as receive and transmit communications via the contact pads as part of various device states.

A communication system can include a first transceiver device and a second transceiver device that can communicate digital baseband data via a direct current (DC) power line bus in the wellbore. One or more of the transceivers includes a coupler for the DC power line bus for transceiving data via the DC power line bus with the other transceiver device, modulation circuitry, demodulation circuitry, and compensator circuitry. The compensator circuitry can be communicatively coupled to the coupler for providing an operating point to the coupler in response to both the modulation circuitry and the demodulation circuitry being in an idle state, to reduce effects of low frequency drift and noise in signals.

A communication interface that facilitates communications over powerlines between a trailer and a vehicle. The communication interface includes a housing having first contact and a second contact accessible from an exterior of the housing. The first contact is electrically coupled to the second contact via a powerline that connects an electrical system of the vehicle with an electrical system of the trailer. The communication interface includes a powerline communication controller having a first set of terminals coupled to a first connector and a second set of terminals coupled to the powerline. The powerline communication controller is configured to receive a first signal from a device of the trailer that indicates a condition regarding a defined region of the trailer. The powerline communication controller is configured to generate, based on the first signal, a second signal representative of the condition, and introduce the second signal onto the first power signal.

Methods and devices for wired charging and communication with a wearable device are described. In one embodiment, a symmetrical contact interface comprises a first contact pad and a second contact pad, and particular wired circuitry is coupled to the first and second contact pads to enable charging as well as receive and transmit communications via the contact pads as part of various device states.

A vehicle includes a generator, a battery, a plurality of electrical devices configured to receive power from the generator and the battery, and a power controller. The power controller may group the plurality of electrical devices into a plurality of groups, and control an operation of an electrical device belonging to a group to which at least one electrical device among the plurality of electrical devices belongs, according to a fluctuation of an input voltage of the at least one electrical device.

The present invention improves power supply efficiency during power line communication. This electronic device, comprising at least a portion of a constant current circuit connected to a predetermined load, has a circuit unit that controls the voltage to be applied to the predetermined load on the basis of a state related to the predetermined load. The circuit unit has: a path (a path from end to end via a constant voltage diode) in which at least a portion of the voltage to be applied to the predetermined load is generated when a constant current flowing in the constant current circuit flows therein; and a field effect transistor serving as a switch unit for switching between short-circuiting the path and undoing the same. A control unit controls the voltage to be applied to the predetermined load by switching the state of the switch unit.

An information processing device to enable a user to create a program with visual operations, and to enable the stable implementation of many functions with a small number of devices. In a basic core, a pairing unit executes pairing with a user terminal that executes control for causing functional modules, to exhibit prescribed functions. A transmission information generation unit generates transmission information including: prescribed information to be used by the functional modules, to exhibit the prescribed functions or while exhibiting the prescribed functions on the basis of the control by the user terminal; and information indicating a transmission destination, which is one of the functional modules. A connection unit executes control to superimpose the transmissio information on a signal for supplying power to the functional modules in the form of electric current and to transmit the signal to the functional modules.

Communication systems and methods over direct current (DC) power conductors to remote subunits may include interrupt windows in a power signal on a DC power conductor for safety reasons. The timing of rising and falling edges of the interrupt window may be modified, thereby changing the duration, period, or position within a period of the interrupt window. In effect, interrupt windows within the DC power signal may be pulse width modulated to send data between a power source and one or more subunits. Pulse width modulation (PWM) of the DC power signal preserves the safety features, but allows data and/or commands to be transferred between the power source and any subunits.

A system and method is provided for data over power in an aircraft that includes a direct current power source for providing power over power lines to devices onboard the aircraft and a data injector coupled to the power lines for digitally modulating radio frequency data onto twisted pair data over power lines to provide data and power to the devices. A controller is coupled to the direct current power source and the data injector for providing the data to digitally modulate the radio frequency onto the twisted pair data over power lines such that power for the devices onboard the aircraft and data for control of the device onboard the aircraft are provided to the devices onboard the aircraft over the twisted pair data over power lines.