Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of equalizing
Reexamination Certificate
2005-03-01
2005-03-01
Young, W. R. (Department: 2651)
Dynamic magnetic information storage or retrieval
General recording or reproducing
Specifics of equalizing
C360S067000
Reexamination Certificate
active
06862152
ABSTRACT:
A channel adjustment control adjusts a channel to reduce bit error rate in a disc drive. Variable gain register settings are read and compared to filter characteristics to provide an operational boost register setting for an adjustable gain amplifier in the channel. An operational pole register setting is provided based on the operational boost register setting and known parameters of the adjustable low pass filter. Low and high frequency data patterns are applied while the channel adjustment control reads the variable gain register settings.
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IEEE Tranactions on Magnetics- Written on Sep. 1997 vol. 33 No. 5—Part 1 of 3- Published in New Orleans Louisiana.
Kan Utt Heng
Seng Edmun ChianSong
Wu DetHau
Cesari Kirk A.
Giesy Adam R.
Seagate Technology LLC
Young W. R.
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