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AssigneeWestern Digital Technologies, Inc.
InventorsYoo H. Kim, Hanan Kupferman
Estimating the term…
The present invention may be regarded as a disk drive comprising a disk with a reserved sector for storing a data-sector channel parameter, and a data sector for storing data. The disk drive further comprises a read channel circuit comprising a parameter register, and a non-volatile semiconductor memory (NSM) storing a reserved-sector channel parameter that is selected by using a parameter calibration procedure performed for the disk drive. A disk controller retrieves the reserved-sector channel parameter stored in the NSM, programs the parameter register with the retrieved reserved-sector channel parameter in order to configure the read channel circuit to recover the data-sector channel parameter stored in the reserved sector, and programs the parameter register with the recovered data-sector channel parameter so that the read channel circuit is configured to recover the data stored in the data sector.
A disk drive comprising:
A method of manufacturing a disk drive comprising a head for writing data to and reading data from a disk, a non-volatile semiconductor memory (NSM), and a read channel for detecting an estimated data sequence from a read signal emanating from the head, the method of manufacturing comprising the steps of:
A method of reading data recorded in a disk drive comprising a head for writing data to and reading data from a disk, a non-volatile semiconductor memory (NSM), and a read channel for detecting an estimated data sequence from a read signal emanating from the head, the method of reading data comprising the steps of:
Dependencies are inferred from the claim text.