Integrated bias and offset recovery amplifier

Details Integrated bias and offset recovery amplifier Integrated bias and offset recovery amplifier

2004-09-30

2008-03-04

Nguyen, Hoa T. (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

C360S066000, C360S068000, C360S046000

Reexamination Certificate

active

07339760

ABSTRACT:
A preamplifier circuit is connected to a transducing head, and has integrated bias circuitry and offset recovery circuitry. The offset recovery circuitry is activated in response to a transition from write mode to read more to provide an output signal representative of a signal across the transducing head. The bias circuitry is driven by the output signal of the offset recovery circuitry to bias the transducing head.

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