Peak detector with look ahead

Details Peak detector with look ahead Peak detector with look ahead

1994-04-28

1995-02-07

Hajec, Donald

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

360 55, 360 45, G11B 509, G11B 502

Patent

active

053880110

ABSTRACT:
A look ahead detector based on a delay line is used in a pulse amplitude qualifier circuit to qualify detected peaks in a system for the recovery of magnetically recorded digital information. The analog signal is delayed by one cell period to create a delayed replica which is applied to the peak detector. The difference between the analog signal and the delayed replica is applied to a hysteresis flip flop to create a qualifying signal based on a threshold value proportional to the analog signal to gate the peak detected in the delayed replica.

REFERENCES:
patent: 4480276 (1984-10-01), Batey et al.
patent: 4724496 (1988-02-01), White
patent: 4979189 (1990-12-01), Wile
patent: 4987500 (1991-01-01), Bizjak et al.

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