Importance

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Abstract

Determining that a slope of test values resulting from two test conditions being applied to a remote device via a network connection and a reference circuit is within a predetermined range, and applying full power to the remote device if the slope is within the predetermined range. The determination using the slope reduces the effects of voltage drop variation caused by diodes and leakage of current by transistors in the remote device. The determination is performed by first applying a first reference voltage to both the remote device and reference circuit and storing the resulting two voltages. Next, a second reference voltage is applied to both the remote device and reference circuit and the resulting two voltages are stored. A first difference is calculated from the two voltages resulting from the testing of the remote device, and a second difference is calculated from the two voltages resulting from the testing of the reference circuit. The absolute difference between the first and second differences is calculated. Finally, the absolute difference is compared with the predetermined range.

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First Claim