Browse Prior Art Database

Tri-State Position Sensing System

IP.com Disclosure Number: IPCOM000059297D
Original Publication Date: 1988-Aug-01
Included in the Prior Art Database: 2005-Feb-16

Publishing Venue

IBM

Related People

Authors:
Wallace, LJ [+details]

Abstract

This system uses a single phototransistor to provide three position signals (low, nominal, high) depending upon the position of the sensed item.