Dynamic magnetic information storage or retrieval – General recording or reproducing – Recording-or erasing-prevention
Reexamination Certificate
2011-03-15
2011-03-15
Negrón, Daniell L (Department: 2627)
Dynamic magnetic information storage or retrieval
General recording or reproducing
Recording-or erasing-prevention
C360S069000, C360S075000
Reexamination Certificate
active
07907364
ABSTRACT:
A disk drive including a delay circuit to provide a delayed reset signal is disclosed. The disk drive includes a head to perform write and read operations to and from a disk and a disk controller that is coupled to the head to control the write and read operations performed by the head. The disk drive further includes: a power loss detection circuit to detect a power loss and to generate a reset signal in response to the power loss; a reset power line coupled to the disk controller and the power loss detection circuit to provide a non-delayed reset signal to the disk controller; and a delay circuit coupled to the reset power line wherein the delay circuit delays the reset signal to provide a delayed reset signal.
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“High-Integrity Storage of Linked Lists on Disk without Logging”, Jun. 1, 2994, IBM Technical Disclosure, vol. 37, pp. 43-44.
Boyle William B.
Ryan Robert P.
Holder Regina N
Negrón Daniell L
Western Digital Technologies Inc.
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