SYSTEM AND METHOD FOR PROVIDING SIGNAL ENCODING REPRESENTATIVE OF A SIGNATURE REGION IN A TARGET AND OF A DIRECTION OF ROTATION

摘要

A magnetic field sensor and associated method provide an output signal with an identifiable encoding to indicate when a signature region in a moving target proximate to the magnetic field sensor passes by the magnetic field sensor. An output protocol processor, coupled to at least two detector circuits, generates a magnetic field sensor output signal, wherein the magnetic field sensor output signal has a plurality of pulses with respective pulse widths, wherein first pulses with first pulse widths with a first time duration are indicative of the target moving in a first direction, wherein second pulses with second pulse widths with a second different time duration are indicative of the target moving in a second different direction, and wherein third pulses with identifiable encoding are indicative of the signature region passing by the magnetic field sensor.