System and method for detecting a device requiring power
AssigneeBroadcom Corporation
InventorsVafa Rakshani, Nariman Yousefi
Life of this patent
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Abstract
A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector, output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
Claims53
A power detection system, comprising:
- a detector having an output and a return;
- and
- a device to selectively couple the detector output to the detector return when the device requires power.
A detecting station having an input and a return, comprising:
- a word generator couple to the detecting station output;
- and
- a comparator to compare the detecting output with the detecting station return.
A method for detecting a device requiring power, comprising:
- transmitting a pulse to the device;
- receiving the pulse from the device;
- and
- detecting whether the device requires power in response to the received pulse.
A transmission system, comprising:
- a transmission line interface having at least one port;
- a two-way transmission line coupled to one of the ports;
- and
- a device coupled to the two-way transmission line, the device selectively coupling the two-way transmission line together when the device requires power.
A detector having an output and a return, comprising:
- a word generator coupled to the detector output;
- and
- a comparator to compare the detector output with the detector return.
Dependencies are inferred from the claim text.