Magneto-resistive head thermal asperity digital compensation

Abstract

AbatractThe introduction of mameto-resis tive (MR) heads into disk drives has significantly increased the areal density. However, accompanying the MR head is the problem of thermal asperities which can cause unrecoverable errors if mproperly compensated. This paper describes inexpensive digital techniyues employed with a sampling detector that sigruficantly reduce the chances of thermal asperity-induced unrecoverable errors.