SYSTEM AND METHOD FOR A POWER LINE MODEM
First Claim
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1. A method to reduce interference produced by a switched-mode power supply in an Internet-enabled device receiving power from a 50 to 60 Hz alternating current (AC) power line, comprising:
- receiving a communication signal superimposed on the AC power line, the communication signal carrying Internet data;
detecting a preamble of the communication signal;
upon detecting the preamble, reducing communication interference by automatically modifying an operating mode of the switched-mode power supply.
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Abstract
In accordance with an embodiment, a method of operating an electronic system includes detecting an incoming transmission on a power line, and modifying a switching behavior of a switched-mode power supply coupled to the power line upon detecting the incoming transmission. Modifying reduces the level of interference produced by the switched-mode power supply.
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Citations
20 Claims
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1. A method to reduce interference produced by a switched-mode power supply in an Internet-enabled device receiving power from a 50 to 60 Hz alternating current (AC) power line, comprising:
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receiving a communication signal superimposed on the AC power line, the communication signal carrying Internet data; detecting a preamble of the communication signal; upon detecting the preamble, reducing communication interference by automatically modifying an operating mode of the switched-mode power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An Internet-enabled appliance, comprising:
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a switched-mode power supply arranged to receive power from a 50 to 60 Hz alternating current (AC) power line; and a power line modem arranged to pass Internet communications via the AC power line, the power line modem arranged to direct an automatic modification of an operating mode of the switched-mode power supply upon detection of a preamble of a communication signal passed on the AC power line. - View Dependent Claims (12, 13, 14, 15)
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16. A power line modem arranged to communicate Internet-based data, comprising:
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a transmission detector configured to detect a preamble of an Internet-based communication signal received on a 50 to 60 Hz alternating current (AC) power line; and an output coupleable to a switched-mode power supply that receives power on the 50 to 60 Hz AC power line, the output arranged to automatically direct the switched-mode power supply to modify an operating mode after detection of the preamble. - View Dependent Claims (17, 18, 19, 20)
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Specification