Waveform equivalent circuit

Details Waveform equivalent circuit Waveform equivalent circuit

1984-10-24

1986-05-27

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

360 65, G11B 509, G11B 1514

Patent

active

045919399

ABSTRACT:
A waveform equivalent circuit for correcting the asymmetry of the rising and falling slopes of an isolated signal waveform retrieved from a magnetic recording medium so as to restore an acute, symmetric isolated waveform. In operation, the input signal is phase-shifted and attenuated, and then added to the input signal to produce a smaller double peaked waveform, which is modified with an inverted and attenuated version of the input waveform. The input signal waveform is subtracted from the modified double peaked signal waveform to diminish both slope sections, and an acute, symmetric original signal waveform is recreated.

REFERENCES:
patent: 4276573 (1981-06-01), Halpern et al.
patent: 4319288 (1982-03-01), Lee

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