Patent ID: 7839154
Filing Date: 2010-11-23
Classification: H04L

Abstract:
1. A method of classifying a high powered device, the method comprising: connecting a specified voltage to the powered device; measuring current through a discrete classification resistor connected in series with a discrete classification circuit, the discrete classification resistor and discrete classification circuit connected between first and second terminals of the powered device such that a first terminal of the discrete classification circuit is connected to the first terminal of the powered device, a second terminal of the discrete classification circuit is connected to a first terminal of the discrete classification resistor, and a second terminal of the discrete classification resistor is connected to the second terminal of the powered device; and determining a powered device classification signature based on the current according to classification steps such that a minimum classification step includes a minimum current of 0 mA and a maximum classification step includes a maximum current that is beyond a predefined current limit.