Enhanced power in HDMI systems
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United States of America Patent
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Mar 1, 2016
Grant Date -
Apr 5, 2012
app pub date -
Apr 17, 2009
filing date -
Apr 17, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
There is provided a source device, which is adapted to communicate with a sink device through an HDMI cable. The sink device comprises an internal circuit, handshaking circuitry adapted to verify if the sink device is able to supply a current on a line of the HDMI cable, an internal power supply intended for powering the line and a switching circuit able to uncouple the internal power supply from the line and able to couple the internal circuit to the line. There is also provided a sink device, which is adapted to communicate with a source device through an HDMI cable. The sink device comprises a power supply, hand-shaking circuitry able to indicate that the sink device is able to supply a current on a line of said HDMI cable, and a circuit able to couple the power supply to the line.
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