Method of tracking thresholds on a read signal

Details Method of tracking thresholds on a read signal Method of tracking thresholds on a read signal

1993-05-04

1996-02-27

Hajec, Donald T.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

360 51, G11B 509

Patent

active

054953685

ABSTRACT:
A pulse detection sensing system which provides an output signal only when a maximum voltage peak is detected. The system has a comparator which generates a comparator output signal when an output signal generated by the transducer of the system is equal to or greater than a threshold signal. The comparator is coupled to a peak follower and a sample/hold circuit which increases the voltage of the threshold signal to the level of the head output signal when the output signal attains a zero slope and has equaled or exceeded the set threshold value.

REFERENCES:
patent: 3691543 (1972-09-01), Mueller
patent: 3801830 (1974-04-01), Boyer
patent: 4169232 (1979-09-01), Henrich
patent: 4634896 (1987-01-01), Shrinkle
patent: 4635142 (1987-01-01), Haugland
patent: 4771188 (1988-09-01), Cheng et al.
patent: 4789838 (1988-12-01), Cheng
patent: 5150050 (1992-09-01), Genheimer et al.

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