Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data clocking
Reexamination Certificate
2005-04-06
2009-10-27
Feild, Joseph H (Department: 2627)
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data clocking
Reexamination Certificate
active
07609468
ABSTRACT:
A disk controller that controls data transfer between a storage device and a host system is provided. The disk controller includes logic having a state machine that controls de-assertion of a read gate signal based on sector size and/or whether a data segment is split or non-split. The read gate signal is de-asserted at programmable times, based on data sector size. The state machine interfaces with a register whose settings indicate to the state machine that next time when the state machine starts executing from an idle state it should process a second half of a split sector. The state machine also uses a register that to extend assertion of the read gate signal. It is noteworthy that the read gate signal is controlled on a positive and negative edge of a write clock signal.
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PCT International Search Report, Doc. No.
Datwyler Wayne C.
Hudiono Hunardi
Pinvidic Daniel R
Feild Joseph H
Marvell International Ltd.
Negrón Daniell L
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