Dynamic magnetic information storage or retrieval – General processing of a digital signal – Head amplifier circuit
Reexamination Certificate
2007-07-17
2007-07-17
Korzuch, William (Department: 2627)
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Head amplifier circuit
C360S065000
Reexamination Certificate
active
11095001
ABSTRACT:
A method and apparatus for providing a read channel having imbedded channel signal analysis is disclosed.The method and apparatus disclosed determines the types of noise present in a read signal and separates different noises out of the read signal. A signal is read from a storage medium and a written signal is removed from the read signal to produce a noise residue signal. The noise residue signal is converted to a power residue signal. The power residue signal is correlated with a Pseudo Random Bit Sequences (PRBS) sequence used to generate the written signal to produce a deconvolved signal. The deconvolved signal is accumulated.
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Galbraith Richard L.
Oenning Travis R.
Tree Eric J.
Wilson Bruce A.
Chambliss Bahner & Stophel PC
Hitachi Global Storage Technologies - Netherlands B.V.
Korzuch William
Lynch David W.
Negrón Daniell L.
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