Data wedge format table synchronization
AssigneeMarvell International Ltd.
InventorsLim Hudiono, Daniel R. Pinvidic, Stanley K. Cheong
Life of this patent
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Abstract
A control module for a rotating storage medium includes a data wedge format table (DWFT). The control module also includes a buffer control module that has a DWFT queue that includes X entries from the DWFT and one of X first servo information for each of the X entries. X is a positive integer. A disk formatter module that compares the one of X first servo information with second servo information that is based on a current position of a read/write device in relation to the rotating storage medium.
Claims59
A control module for a rotating storage medium, comprising:
- a data wedge format table (DWFT);
- a buffer control module that comprises a DWFT queue that includes X entries from said DWFT and one of X first servo information for each of said X entries, where X is a positive integer;
- and
- a disk formatter module that compares said one of X first servo information with second servo information that is based on a current position of a read/write device in relation to the rotating storage medium.
A disk formatter module for a rotating storage medium, comprising:
- a servo counter module that counts first servo information that is based on a current position of a read/write head over the rotating storage medium;
- and
- a DWFT synchronization module that compares said first servo information with second servo information from a data wedge format table (DWFT) queue that includes X entries from a DWFT, where X is a positive integer.
A method for controlling a rotating storage medium, comprising:
- controlling a data wedge format table (DWFT) queue that includes X entries from a DWFT and one of X first servo information for each of said X entries, where X is a positive integer;
- and
- comparing said one of X first servo information with second servo information that is based on a current position of a read/write device in relation to the rotating storage medium.
A method for operating a disk formatter module for a rotating storage medium, comprising:
- counting first servo information that is based on a current position of a read/write head over the rotating storage medium;
- and
- comparing said first servo information with second servo information from a data wedge format table (DWFT) queue that includes X entries from a DWFT, where X is a positive integer.
A control module for a rotating storage medium, comprising:
- a data wedge format table (DWFT);
- buffer control means for controlling buffer means for storing data that comprises a DWFT queue that includes X entries from said DWFT and one of X first servo information for each of said X entries, where X is a positive integer;
- and
- disk formatter means for comparing said one of X first servo information with second servo information that is based on a current position of a read/write device in relation to the rotating storage medium.
A disk formatter module for a rotating storage medium, comprising:
- servo counter means for counting first servo information that is based on a current position of a read/write head over the rotating storage medium;
- and
- DWFT synchronization means for comparing said first servo information with second servo information from a data wedge format table (DWFT) queue that includes X entries from a DWFT, where X is a positive integer.
Dependencies are inferred from the claim text.