Multiple-input and multiple-output modem for connection in a power line communication network
AssigneeSony Corporation
InventorsAndreas Schwager, Werner Baeschlin
Life of this patent
Estimating the term…
Abstract
A device for determining a common-mode signal in a power line communication network. The device includes a first line, a second line, and a third line that are connected to a first terminal, to a second terminal, and to a third terminal, respectively. The first, the second, and the third terminal are configured to be connected to a phase line, a neutral line, and a protective ground line of the power line communication network, respectively. The device further includes a common-mode choke configured to couple out the common signal from the first, second, and third line, and the common-mode choke is connected to a termination impedance which is higher than an impedance of the power line communication network.
Claims20
A multiple-input and multiple-output (MIMO) Power Line Communication (PLC) modem for a PLC network, comprising:
- a first line coupled to a phase line input terminal of the MIMO PLC modem, the first line being connectable to a phase line of the PLC network;
- a second line coupled to a neutral line input terminal of the MIMO PLC modem, the second line being connectable to a neutral line of the PLC network;
- a third line connected to a protective earth line input terminal of the MIMO PLC modem, the third line being connectable to a protective earth line of the PLC network;
- a first capacitor coupled in line with the first line and connected in series with the phase line input terminal and a first inductive element;
- a second capacitor coupled in line with the second line and connected in series with the neutral line input terminal and a second inductive element different from the first inductive element;
- a third capacitor coupled in line with the third line and connected in series with the protective earth line input terminal and a third inductive element different from the first inductive element and the second inductive element;
- and
- a first transformer, a second transformer, and a third transformer connected in star topology to a first output terminal, a second output terminal, and a third output terminal, respectively,
- wherein the phase line input terminal, the neutral line input terminal, and the protective earth line input terminal, collectively, are constructed and arranged for connection to the phase line, the neutral line, and the protective earth line, respectively, of the PLC network,
- wherein at least one element is coupled between the first line and the second line,
- wherein the first capacitor is coupled between the phase line input terminal and the first transformer,
- wherein the second capacitor is coupled between the neutral line input terminal and the second transformer, and
- wherein the third capacitor is coupled between the protective earth line input terminal and the third transformer.
A multiple-input and multiple-output (MIMO) Power Line Communication (PLC) modem for a PLC network, comprising:
- a first line coupled to a phase line input terminal of the MIMO PLC modem, the first line being connectable to a phase line of the PLC network;
- a second line coupled to a neutral line input terminal of the MIMO PLC modem, the second line being connectable to a neutral line of the PLC network;
- a third line connected to a protective earth line input terminal of the MIMO PLC modem, the third line being connectable to a protective earth line of the PLC network;
- a first capacitor coupled in line with the first line and connected in series with the phase line input terminal and a first inductive element;
- a second capacitor coupled in line with the second line and connected in series with the neutral line input terminal and a second inductive element different from the first inductive element;
- a third capacitor coupled in line with the third line and connected in series with the protective earth line input terminal and a third inductive element different from the first inductive element and the second inductive element;
- and
- a first transformer, a second transformer different from the first transformer, and a third transformer different from the first and second transformers, the first transformer, the second transformer, and the third transformer being connected to the first line, the second line, and the third line, respectively,
- wherein the phase line input terminal, the neutral line input terminal, and the protective earth line input terminal, collectively, are constructed and arranged for connection to the phase line, the neutral line, and the protective earth line, respectively, of the PLC network.
Dependencies are inferred from the claim text.