Patent ID: 7126327
Filing Date: 2006-10-24
Classification: G01D

Abstract:
1. A magnetic sensor, comprising: a ferrous target; a magnet located proximate to said ferrous target, wherein said ferrous target comprises a plurality of teeth and a plurality of slots formed therebetween; an integrated circuit formed on a substrate, wherein said integrated circuit is located on a side of said magnet wherein said integrated circuit comprises a plurality of asymmetrically arranged magnetoresistive bridge components, such that at least one magnetoresistive bridge component of said plurality of asymmetrically arranged magnetoresistive bridge components comprises a different pattern from that of at least one other magnetoresistive bridge component among said plurality of asymmetrically arranged magnetoresistive bridge components, wherein said integrated circuit and said magnet are configured into a sensor package, such that said plurality of asymmetrically arranged magnetoresistive bridge components enables a detection of at least one tooth among said plurality of teeth of said ferrous target; and wherein said plurality of asymmetrically arranged magnetoresistive bridge components comprises a first set of magnetoresistors asymmetrically offset from a second set of magnetoresistors wherein said first and second sets of magnetoresistors are configured upon said substrate upon which said integrated circuit is formed and wherein said first set of magnetoresistors comprises a greater number of magnetoresistors than said second set of magnetoresistors.