Aspects of the subject disclosure may include, a system that facilitates detecting first electromagnetic waves propagating along a transmission medium are experiencing a first propagation loss, inducing second electromagnetic waves along the transmission medium to mitigate the first propagation loss, detecting that the second electromagnetic waves are experiencing a second propagation loss and inducing third electromagnetic waves along the transmission medium to mitigate the second propagation loss. To reduce radiation losses when transitioning from the first electromagnetic waves to second electromagnetic waves and transitioning from the second electromagnetic waves to the third electromagnetic waves, the system can be further adapted to use differing criteria for each transition. Other embodiments are disclosed.

Aspects of the subject disclosure may include, a system that facilitates detecting first electromagnetic waves propagating along a transmission medium are experiencing a first propagation loss, inducing second electromagnetic waves along the transmission medium to mitigate the first propagation loss, detecting that the second electromagnetic waves are experiencing a second propagation loss and inducing third electromagnetic waves along the transmission medium to mitigate the second propagation loss. To reduce radiation losses when transitioning from the first electromagnetic waves to second electromagnetic waves and transitioning from the second electromagnetic waves to the third electromagnetic waves, the system can be further adapted to use differing criteria for each transition. Other embodiments are disclosed.

An air conditioning system includes an outdoor unit and an indoor unit connected to the outdoor unit through an air conditioning communication line. The outdoor unit includes: a control unit; a compressor; a fan; a compressor inverter; a fan inverter; a heat exchanger; and valves of various types. The control unit of the outdoor unit has a coupling capacitor and a noise-cutting transformer which are between a communication circuit and the air conditioning communication line.

A power line communication apparatus includes a first power line communication device disposed at a signal transmit end, a second power line communication device disposed at a signal receive end, a power line, a first magnetic ring disposed at the signal transmit end, and a second magnetic ring disposed at the signal receive end. The second power line communication device receives the modulated signal from the power line. The power line includes a wire for transmitting electric energy and a shield layer that wraps the wire for electromagnetic shielding. The wire and the shield layer separately extend from the signal transmit end to the signal receive end. The first magnetic ring and the second magnetic ring are separately coupled to the shield layer, to suppress inductance attenuation of the magnetic ring and improve reliability of the transmitted modulated signal.

A power line communication apparatus includes a first power line communication device disposed at a signal transmit end, a second power line communication device disposed at a signal receive end, a power line, a first magnetic ring disposed at the signal transmit end, and a second magnetic ring disposed at the signal receive end. The second power line communication device receives the modulated signal from the power line. The power line includes a wire for transmitting electric energy and a shield layer that wraps the wire for electromagnetic shielding. The wire and the shield layer separately extend from the signal transmit end to the signal receive end. The first magnetic ring and the second magnetic ring are separately coupled to the shield layer, to suppress inductance attenuation of the magnetic ring and improve reliability of the transmitted modulated signal.

Disclosed herein is an electromagnetic wave shielding dielectric film. The electromagnetic wave shielding dielectric film includes a lower layer and an upper layer. The lower layer is formed of a dielectric in a plate shape. The upper layer is formed of a dielectric stacked on the lower layer, and is configured to form a periodic pattern of protrusion and depression structures.

An apparatus including a board, an inductor that is provided on the board, a guard ring that includes a first guard ring part provided to be adjacent to a circumference of the inductor and a second guard ring part provided to be adjacent to an outer side of the first guard ring part, in which one end of the second guard ring part is connected to one end of the first guard ring part, and a first power supply that is connected to another end of the first guard ring part and another end of the second guard ring part.

An audio/video device may determine that a UI is displayed in a first AV signal, and may capture a frame of the UI in order to provide UI information to a UI generation component that generates a second UI. The AV device may then provide the second UI for display in place of the first UI. The AV device may act as a virtual controller device capable of controlling multiple devices and streaming content from multiple devices to multiple displays.

Apparatus (2) is described including one or more signal sources (6). The apparatus (2) also includes a measurement front end (7) having at least first (+V.sub.in)) and second (−V.sub.in) inputs. The apparatus (2) also includes a substantially planar connector (1) having a length (L) between first (1a) and second (1b) ends and supporting a number of conductors (3) spanning between the first (1a) and second (1b) ends. At each point between the first (1a) and second (1b) ends the conductors (3) are substantially equi-spaced from one another within the substantially planar connector (1). The conductors (3) include at least one signal conductor (8) connecting the signal sources (6) to the first input (+V.sub.in). The conductors (3) also include at least two further conductors (10, 11) connecting to the one or more signal sources (6). One or both of the two further conductors (10, 11) also connect to the second input (−V.sub.in). Each of the at least one signal conductor (8) and the at least two further conductors (10, 11) belongs to one or more closed loops. The one or more closed loops have areas and impedances configured such that in response to a uniform time-varying external magnetic field being applied to the apparatus, a first unwanted electromotive force induced at the first input (+V.sub.in) will be substantially equal to a second unwanted electromotive force induced at the second input (−V.sub.in).

Apparatus (2) is described including one or more signal sources (6). The apparatus (2) also includes a measurement front end (7) having at least first (+V.sub.in)) and second (−V.sub.in) inputs. The apparatus (2) also includes a substantially planar connector (1) having a length (L) between first (1a) and second (1b) ends and supporting a number of conductors (3) spanning between the first (1a) and second (1b) ends. At each point between the first (1a) and second (1b) ends the conductors (3) are substantially equi-spaced from one another within the substantially planar connector (1). The conductors (3) include at least one signal conductor (8) connecting the signal sources (6) to the first input (+V.sub.in). The conductors (3) also include at least two further conductors (10, 11) connecting to the one or more signal sources (6). One or both of the two further conductors (10, 11) also connect to the second input (−V.sub.in). Each of the at least one signal conductor (8) and the at least two further conductors (10, 11) belongs to one or more closed loops. The one or more closed loops have areas and impedances configured such that in response to a uniform time-varying external magnetic field being applied to the apparatus, a first unwanted electromotive force induced at the first input (+V.sub.in) will be substantially equal to a second unwanted electromotive force induced at the second input (−V.sub.in).