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.

An electronic system for a firearm includes a power source, one or more electrical conductors electrically connected to receive power from the power source, and a plurality of electronic devices. Each electronic device has an electrical input configured to receive power from the one or more electrical conductors to power the electronic device. A communication device is configured for data communication across the one or more electrical conductors. In some embodiments data can be communicated at rates greater than 10 Mbps. Some embodiments utilize multi-frequency encoding, such as orthogonal frequency-division multiplexing. Some embodiments include a data communication device with a lower data communication rate and another data communication device with a higher data communication rate, and can selectively communicate through either data communication device. A method of communicating between electronic devices connected to a firearm includes powering a plurality of electronic devices connected to a firearm from a power source through one or more electrical conductors, and communicating data between the plurality of electronic devices across the one or more electrical conductors.

A multi-way coupler includes a housing having at least three connector-receiving channels, a circuit board contained within the housing and at least three pairs of contacts including exactly one pair of contacts per each of the at least three connector-receiving channels. Each of the contacts includes a forward end extending into the respective connector-receiving channel and a rearward end electrically coupled to the circuit board. Further, each of the pair of contacts includes a first contact and a second contact with the circuit board including a first set of traces to electrically couple all of the first contacts together and a second set of traces to electrically couple all of the second contacts together. The multi-way coupler has a shielded configuration and a non-shielded configuration

Power supply efficiency may be provided. First, a total power supply capacity may be determined comprising a sum of a plurality of supply capacities respectively corresponding to a plurality of power supplies serving a plurality of components. Next, a load value corresponding to the plurality of components may be determined. A number of the plurality of power supplies may then be powered down. The number of power supplies powered down may comprise a value that may cause a remaining number of the plurality of power supplies serving the plurality of components to operate within an efficiency range.

Power supply efficiency may be provided. First, a total power supply capacity may be determined comprising a sum of a plurality of supply capacities respectively corresponding to a plurality of power supplies serving a plurality of components. Next, a load value corresponding to the plurality of components may be determined. A number of the plurality of power supplies may then be powered down. The number of power supplies powered down may comprise a value that may cause a remaining number of the plurality of power supplies serving the plurality of components to operate within an efficiency range.

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.

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.

An electromechanical actuator for driving a movable closure or sun protection screen includes a motor, a control board, a gear reduction assembly and a connector for connecting to a power supply source. The connector includes eight electrical contacts, the connector being in particular an RJ45 connector, for supplying power to the actuator and transmitting data from an Ethernet network. The motor is a synchronous motor including a wound stator and a rotor with permanent magnets, the stator winding being designed to withstand a voltage of 46V to 57V, in particular a voltage of 48V.

Embodiments of this application disclose an optical network unit and a PoE power supply system. The optical network unit in embodiments of this application includes a conductive connection terminal, a switch module, a network transformer, a first voltage conversion module, and a network interface connector. The conductive connection terminal is configured to be connected to a power over Ethernet PoE power supply device, and the conductive connection terminal is connected to the network transformer.

Embodiments of this application disclose an optical network unit and a PoE power supply system. The optical network unit in embodiments of this application includes a conductive connection terminal, a switch module, a network transformer, a first voltage conversion module, and a network interface connector. The conductive connection terminal is configured to be connected to a power over Ethernet PoE power supply device, and the conductive connection terminal is connected to the network transformer.