Appeal No. 1999-0243
Application 08/434,457
The invention relates to a hard disk drive controller with
defect management for automatic track processing (specification,
page 15, lines 17-19). Defect information for tracks are written
into the header of every sector disk sector (specification, page
15, lines 17-19; figure 13). Physical sector number information
is provided by the storage system and not stored within any of
the sectors. A logical sector number within a track is
determined by taking a physical sector number provided by the
system, reading the defect list from a sector of a track, and
generating a corresponding logical sector number corresponding to
the physical sector number (specification, page 20, line 31 to
page 23, line 28).
Independent claim 63 is reproduced as follows:
63. In a data storage system comprising multiple media
surfaces, each surface having a plurality of concentric tracks
divided into a plurality of sectors each having a sequential
physical sector number representing the number of the sector on a
respective one of the plurality of concentric tracks, a plurality
of cylinders each being formed from a given location of tracks on
different media surfaces, physical sector number information
provided by the storage system and not stored within any of the
plurality of sectors, each sector comprising:
an identifier portion including a head number and a
defective sector list of sector numbers for all sectors on a
respective one of the plurality of concentric tracks which are to
be skipped; and
a data portion for storing data,
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