Carrier current communication system with infrared receiver
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United States of America Patent
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Apr 23, 2013
Grant Date -
Sep 13, 2012
app pub date -
Apr 2, 2012
filing date -
Mar 18, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Embodiments of a method and apparatus are described to transmit a data signal from a power supply unit, over existing direct current (DC) power transmission lines, to a residential gateway which includes an infrared (IR) receiver designed to receive optical signals. In one embodiment, the IR receiver is configured to receive a carrier current communication signal from the power supply unit over a pair of copper wires coupled to the IR receiver. The carrier current communication signals may be encoded by a transmission encoding logic circuit using pulse position modulation techniques. The received carrier current communication signals may be demodulated and decoded to reproduce an input data stream.
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