Browse Prior Art Database

Power on Reset Sweep Mode

IP.com Disclosure Number: IPCOM000117131D
Original Publication Date: 1995-Dec-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Endoh, T: AUTHOR [+4]

Abstract

Disclosed is an invention clear to disk surface of debri(>1um) and resolve Magnetic Resistive (MR) head Thermal Asperity (TA) problem.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Power on Reset Sweep Mode

      Disclosed is an invention clear to disk surface of debri(>1um)
and resolve Magnetic Resistive (MR) head Thermal Asperity (TA)
problem.

      The main claim of this invention is as follows:  This sweep
mode is divided in two or more sequences defined by the Skew angle of
the head:
         If Head Skew < 0 :  Sweep direction => I
         If Head Skew > 0 :  Sweep direction =>

      The sequence is intended to avoid any debris from entering the
head path at the taper and embeding the debris in the disk surface.

      The Figure shows an example of the POR sweep mode sequence.