Patent ID: 6754019
Filing Date: 2004-06-22
Classification: G11B

Abstract:
A memory device including a memory medium including at least a set of position information, a medium drive means for driving said memory medium, a read/write structure including a head coupled to an arm, and a read/write structure drive means for driving said read/write structure, said memory device comprising:means for reading a marker signal of said position information from said head; means for generating a dummy marker signal, in response to a marker signal read failure; means for executing an interruption of said read/write structure drive means, in response to receiving either said marker signal or said dummy marker signal; means for counting said interruptions by counting said dummy marker signal; means for determining if a count value from said counting exceeds a predetermined value; means for measuring an output from said read/write structure drive means, said output determines a direction said read/write structure is moving; and means for providing said sending said read/write structure drive means with a drive force in a direction opposite to said direction said read/write structure is moving, in response to determining said count value exceeds a predetermined value.