System and method for improving the shaving experience by providing improved visibility of the skin shaving area. A digital camera is integrated with the electric shaver for close image capturing of shaving area, and displaying it on a display unit. The display unit can be integral part of the electric shaver casing, or housed in a separated device which receives the image via a communication channel. The communication channel can be wireless (using radio, audio or light) or wired, such as dedicated cabling or using powerline communication. A light source is used to better illuminate the shaving area. Video compression and digital image processing techniques are used for providing for improved shaving results. The wired communication medium can simultaneously be used also for carrying power from the electric shaver assembly to the display unit, or from the display unit to the electric shaver.

Method and system are provided for power path identification in a power distribution system. The method transmits a data signal through a power line infrastructure including adding an identifier value at multiple points of the infrastructure to the data signal to form a concatenated path identifier formed of the identifier values. The method reads the path identifier at a reading point of the infrastructure to obtain power path information to or from the reading point in the power line infrastructure. A system may include a plurality of path identification devices each provided at a connection point of the power distribution system to transmit connection point identifiers to form a concatenated path identifier with identifier values of other connection points.

Cables (1, 2) comprise first and second conductors (1, 2) for transporting signals to be picked-up in contactless manners. At first/second locations (3, 4), the first and second conductors (1, 2) are at first/second distances from each other. The first locations (3) are neutral locations where the conductors (1, 2) are parallel. The second locations (4) are pick-up locations. The second distances are larger than the first distances. Pick-up devices for picking-up signals in a contactless manner from the cables (1, 2) comprise parts for defining minimum values of the second distances. These parts may comprise core-parts, such as center ends (10) of E-shaped magnetic cores further comprising outer ends (11, 12) and backs (13). Methods for installing pick-up devices comprise steps of at second locations (4) increasing a distance between the first and second conductors (1, 2) from a value of the first distance to a value of the second distance. Twin-cables (1, 2) or twin-lead-cables (1, 2) are suited well for allowing signals to be picked-up in contactless manners.

The disclosure relates to a method for transmitting data via direct current lines for energy transmission from a first communication unit to a second communication unit. The method includes generating a high-frequency test signal having a predefined voltage amplitude by the first or the second communication unit and coupling the high-frequency test signal onto the direct current lines. The method further includes determining a current level caused by the high-frequency test signal on the direct current lines by the first communication unit, and determining a voltage amplitude for a high-frequency signal based on the current level caused by the test signal. The method also includes coupling a high-frequency signal having the predetermined voltage amplitude onto the direct current lines by the first communication unit. The disclosure also relates to a system for transmitting data via direct current lines for energy transmission and to a photovoltaic installation having such a system.

A signal transmission device includes a signal side electrode; a first signal line connected to one side of the signal side electrode; a second signal line connected to the other side of the signal side electrode; a power source side electrode that forms a pair with the signal side electrode and is connected to the signal side electrode via an electronic component including at least an inductor component; and a capacitive coupling part that capacitively couples the power source side electrode to a ground wiring or a power source wiring. The first signal line, the signal side electrode, and the second signal line form a transmission path for transmitting an electric signal. The first signal line and the second signal line transmit power via the signal side electrode, the electronic component, and the power source side electrode.

An attenuation device for a CAN transceiver comprises two device output nodes configured to electrically couple the attenuation device via the device output nodes between two transceiver terminals of the CAN transceiver. The attenuation device is configured to change from a first device state to a second device state when a common mode voltage is applied to the device output nodes that is either greater than a first reference voltage or less than a second reference voltage that is less than the first reference voltage. The attenuation device causes a first electrical output resistance at each device output node during the first device state and causes a second electrical output resistance at each device output node during the second device state in which the second output resistance is less than the first output resistance.

A signal transfer method includes: transferring a direct current signal between a port of an apparatus and a physical transmission line physically coupled to the port; and transferring: a first signal in accordance with a first wireless protocol to the port from a wireless protocol interface, the first signal being a first radio frequency signal; or a second signal in accordance with a second wireless protocol from the port to the wireless protocol interface, the second signal being a second radio frequency signal; or a combination thereof.

Systems for exchanging information between a cargo handling system of an aircraft and a Power Drive Unit (PDU) are described herein. The systems include a power source provided within the aircraft and a first PDU provided within the aircraft. The power source is capable of providing DC power to the at least one PDU via an electrical power line. The power source further including a first Power Line Communication (PLC) node and the PDU further including a second Power Line Communication (PLC) node. The first PLC node being capable of communicating with the second PLC node via the electrical power line.

As the level of autonomous driving of an automobile is improved, traveling in a system without a driver is required, and high reliability of the system is essential. One method for achieving high reliability is redundancy of a power supply. To construct a redundant power supply network, a redundant power supply network is required in addition to a main power supply network, and the number of wires of the network increases. In addition, since a cable having a thick core wire is used as a power supply wiring in order to handle a large current, the weight of the cable becomes heavy, which leads to fuel consumption degradation of the vehicle. An electronic control device 11-B receives power fed from a power storage unit 12-A via another electronic control device 11-A, as a redundant power supply redundant to a power superimposition data wiring 16. That is, the electronic control device 11-B receives power fed or transmitted from both the directly-connected power storage unit 12-B and the indirectly-connected power storage unit 12-A.

An electronic control module is provided. The electronic control module is operably connected to a power supply for providing power to a motor. The electronic control module includes an input device, a processor coupled to the input device, and first and second current supply lines. The processor is configured to generate a command signal in response to an input supplied by the input device and transmit the command signal to the motor. The command signal controls an operating point of the motor. The first and second current supply lines are operably connectable to the motor and the processor. At least one of the current supply lines, the input device and the processor are adapted to utilize the current supply lines both to transmit power to the motor and to transmit the command signal to the motor over the current supply lines.