Digital Servo Processing In The Venus PRML Read / Write Channel

Lisa Fredrickson,Dennis Carl Stone,Leroy Allen Volz,Giorgio Betti,Paolo Gadducci,F. Heydari,E. Marconetti,G. Maguire,D. Reddy

Digital Servo Processing In The Venus PRML Read / Write Channel

1997

Lisa Fredrickson
Dennis Carl Stone
Leroy Allen Volz
Giorgio Betti
Paolo Gadducci
F. Heydari
E. Marconetti
G. Maguire
D. Reddy

A digital servo processing system within the Venus PRML read/write channel is described. The processor provides for closed loop DC offset and gain control, robust digital peak detection, and integration of up to six servo bursts. Incorporated features optimize performance with asymmetric MR heads.

Keywords:

Nuclear magnetic resonance
Servo
Physics
Automatic gain control
Venus
Electronic engineering
DC bias
Communication channel
maximum likelihood detection
Condensed matter physics
peak detection
closed loop
Electrical engineering

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