Coupling device
First Claim
1. Coupling apparatus, comprising:
- a main connection for connection to a low voltage main power supply system;
an appliance connection for connection of a modem;
a voltage converter for converting a low voltage, which is input via the main connection, to a very-low voltage for supplying electrical power to the modem via the appliance connection; and
a coupler for radio-frequency coupling between the main connection and the appliance connection, for receiving an RF signal from the modem via the appliance connection and transmitting to the low-voltage main power supply system via the main connection, and for receiving an RF signal from the low-voltage main power supply via the main connection and transmitting to the modem via the appliance connection.
2 Assignments
0 Petitions
Accused Products
Abstract
A coupling apparatus (1) having a mains connection (2) for connection to a low-voltage mains power supply system, and having an appliance connection (3) for connection of any appliance for transmitting and/or receiving an RF signal has a voltage converter (5) and a high-pass filter (6.1, 6.2). The voltage converter converts the mains voltage which is present at the mains connection to a very-low voltage, which is suitable for supplying the appliance connected to the appliance connection. Inductances (4.3 to 4.6) of suitable size are interposed in the appropriate connecting lines as low-pass filters for decoupling the RF signal path from the supply signal path, and for suppressing undesirable, radio-frequency signal components in the supply voltages. RF signals which are transmitted or are to be transmitted via the low-voltage mains power supply system are coupled from the mains connection via the high-pass filter to the appliance connection, and from the appliance connection to the mains connection. In order to supply further appliances with mains voltage, the coupling apparatus has an additional appliance connection (7), which is likewise low-pass-filtered by means of inductances (4.3, 4.4).
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Citations
15 Claims
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1. Coupling apparatus, comprising:
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a main connection for connection to a low voltage main power supply system; an appliance connection for connection of a modem; a voltage converter for converting a low voltage, which is input via the main connection, to a very-low voltage for supplying electrical power to the modem via the appliance connection; and a coupler for radio-frequency coupling between the main connection and the appliance connection, for receiving an RF signal from the modem via the appliance connection and transmitting to the low-voltage main power supply system via the main connection, and for receiving an RF signal from the low-voltage main power supply via the main connection and transmitting to the modem via the appliance connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Transmission arrangement for transmitting and receiving an RF signal via a low-voltage main power supply system, comprising a transmitting/receiving modem and a coupling apparatus,
said coupling apparatus comprises a main connection for connection to the low-voltage main power supply system, an appliance connection for connection to the transmitting/receiving modem, a voltage converter for converting a low voltage, which is present at the main connection, to a very-low voltage which can be emitted at the appliance connection, and a coupler for radio-frequency coupling between the main connection and the application connection, wherein said coupling apparatus is connected via its main connection to the low-voltage main power supply system, and the transmitting/receiving modem is connected via the appliance connection of the coupling apparatus, in such a manner that the transmitting/receiving modem is supplied with electrical power via the appliance connection of the coupling apparatus, and an RF signal produced by the transmitting/receiving modem is transmitted to the coupling apparatus from where it is input into the low-voltage main power supply system, and an RF signal transmitted via the low-voltage main power supply system is output by the coupling apparatus from the low-voltage main power supply system, and is transmitted to the transmitting/receiving modem.
Specification