An electromagnetic connector is disclosed that is configured to form a first magnetic circuit portion comprising a first core member and a first coil disposed of the first core member. The electromagnetic connector is configured to mate with a second electromagnetic connector, where the second electromagnetic connector is configured to form a second magnetic circuit portion comprising a second core member and a second coil disposed of the second core member. The first core member and the second core member are configured to couple the first coil to the second coil with a magnetic circuit formed from the first magnetic circuit portion and the second magnetic circuit portion when the electromagnetic connector is mated with the second electromagnetic connector. The magnetic circuit is configured to induce a signal in the first coil when the second coil is energized.

In a digital power system a digital power receiver is electrically coupled with a power control element to receive electrical current therefrom. The power control element includes (i) a power conditioning circuit electrically coupled with an electrical power source and (ii) element controller circuitry electrically coupled with the power conditioning circuit. The element controller circuitry is configured to control and receive feedback from the power conditioning circuit, to receive a communication/synchronization signal, and to output digital power under packet energy transfer protocol.

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.

A method and apparatus are disclosed for enabling an existing wire supplying DC current to an electrical load of a vehicle to serve as a clean line for transmission of a data signal without interference from electrical systems of the vehicle. The method comprises identifying opposite ends of the existing wire, cutting the wire at the opposite ends and inserting a respective inductor in series with the wire at each of the opposite ends, to define an intermediate wire section that extends between the two inductors, and coupling data transmitting and receiving units to the intermediate section of the wire to permit data transfer between the transmitting and receiving units.

Power transmission system (1) for power transmission of electric power (P) from a power source (2A) to a power sink (4A) which is connected to the power source (2A) via a power transfer cable (3), wherein the power source (2A) has a first pole with a first electric potential, which is connected via parallel current lines of a first conducting pair of the power transfer cable (3) to a first pole of the power sink (4A), and a second pole with a second electric potential, which is connected via further parallel current lines of a second conducting pair of the power transfer cable (3) to a second pole of the power sink (4A), wherein, during the power transmission via the current lines, a user data signal can be transmitted between the power source (2A) and the power sink (4A) via at least one conducting pair with current lines of the same electric potential, uninfluenced by the power transmission.

An electronic device, a cable, and a method of driving the same are provided. The cable that transmits data and power includes a notification device comprising notification circuitry configured to output a notification when the power is transmitted, a first connector positioned at one end of the cable, a second connector positioned at an other end of the cable, a wire connecting the first and second connectors and including a data line that transmits the data and a power line that transmits the power, and a cable controller connected to the power line and configured to identify a characteristic of power transmitted through the power line and to change a form of the notification output from the notification device based on the identified power characteristic.

An electromagnetic connector is disclosed that is configured to form a first magnetic circuit portion comprising a first core member and a first coil disposed of the first core member. The electromagnetic connector is configured to mate with a second electromagnetic connector, where the second electromagnetic connector is configured to form a second magnetic circuit portion comprising a second core member and a second coil disposed of the second core member. The first core member and the second core member are configured to couple the first coil to the second coil with a magnetic circuit formed from the first magnetic circuit portion and the second magnetic circuit portion when the electromagnetic connector is mated with the second electromagnetic connector. The magnetic circuit is configured to induce a signal in the first coil when the second coil is energized.

An inter-vehicle communication device of a vehicle provided with an electrical coupler that constructs a communication path with another vehicle by using an electric contact with said another vehicle is provided. The inter-vehicle communication device has: a communication control circuit controlling a communication with said another vehicle; a pulse transformer arranged between the communication control circuit and the electrical coupler; and a power supply device arranged between a middle point of the pulse transformer and the electrical coupler to apply a direct-current voltage to the electric contact between the electrical coupler and an electrical coupler of said another vehicle.

The disclosure discloses a back-end circuit for processing an analogue video signal and direct current power, a front-end circuit for processing an analogue video signal and direct current power and a Power Over Coaxia (POC) circuit for an analogue video signal. Each of the back-end processing circuit and the front-end processing circuit includes an analogue video signal passing circuit configured to block the direct current power and let the analogue video signal pass and a direct current power passing circuit configured to block the analogue video signal and let the direct current power pass, so that the analogue video signal may be isolated from the direct current power and the analogue video signal may be superimposed to the direct current power without mutual influence and exclusion to realize a function of superimposing the direct current power on an analogue high-definition video cable.

A contactless PoE connection system and a contactless PoE connector for use in the connection system, in which the contactless PoE connector has a first contactless interface configured for bidirectional data transfer, a second contactless interface configured for unidirectional power transfer, and a third interface to which a first Ethernet line can be connected. The third interface is configured to receive data and power, which are to be transferred jointly via the Ethernet line. Furthermore, a data and power splitting device are connected to the first, second, and third interfaces, which splitting device is configured for splitting power and data as applied to the third interface and for selectively supplying data to the first contactless interface and for selectively supplying power to the second contactless interface.