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System and method for detecting a device requiring power

  • US 6,571,181 B1
  • Filed: 01/19/2000
  • Issued: 05/27/2003
  • Est. Priority Date: 08/11/1999
  • Status: Expired due to Term
First Claim
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1. A power requirement 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, said detector entering an auto-negotiation mode for establishing a data communication link with the device, said auto-negotiation mode utilizing an auto-negotiation scheme embedded within the IEEE 802.3u clause-28 rules.

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