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Method and Apparatus for Presence Detection System Based on Change in Slew Rate

IP.com Disclosure Number: IPCOM000216320D
Publication Date: 2012-Mar-29

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for system administrators to identify which devices are present in a system through the use of a single pin. The approach involves measuring rise time in the system’s electrical pulse when a device is added. The system then uses a lookup table to determine the number of present devices and their locations based on the changes in rise time.