07647510 is referenced by 3 patents and cites 5 patents.

A method is disclosed that includes receiving a classification voltage at a powered device from a network. The classification voltage includes a baseline voltage level that is below an operating voltage range of the powered device and includes a sequence of distinct signal elements derived from the classification voltage. The method further includes detecting a number of signal elements of the sequence of distinct signal elements. A current is drawn until the number of signal elements exceeds a predetermined number.

Title
System and method of classification in power over ethernet systems
Application Number
11/473209
Publication Number
7647510 (B2)
Application Date
June 22, 2006
Publication Date
January 12, 2010
Inventor
Russell J Apfel
Austin
TX, US
D Matthew Landry
Austin
TX, US
Agent
R Michael Reed
Polansky & Associates
Assignee
Silicon Laboratories
TX, US
IPC
G06F 1/00
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