Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data verification
Patent
1996-06-24
1998-09-29
Dinh, Tan
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data verification
360 41, G11B 509
Patent
active
058153349
ABSTRACT:
A digital signal detector for a digital magnetic recording/reproducing device detects corrected signals using a differentiation feature of a recording/reproducing segment of the device, to reduce performance degradation due to signal distortion. The detector includes a precoder for converting an input digital signal into a non-return-to-zero-inverter (NRZI) waveform signal; a recording/reproducing portion for recording the signal output from the predecoder and reproducing the recorded signal; a linear equalizer for compensating the distorted amplitude of the signal reproduced by the recording/reproducing portion; a signal corrector for correcting a signal output from the linear equalizer using a signal correlation process; an integration detector for integrating the signal corrected by the signal corrector; and a predecoder for decoding the signal integrated by the integration detector into its original signal. The digital signal detector corrects reproduced signals, integrates the corrected reproduction signals having differentiated components of the recording/reproducing portion and then limits the integrated signals to a certain value, thereby reducing errors due to the accumulation of integration error values and reducing hardware volume.
REFERENCES:
patent: 3818501 (1974-06-01), Fiorino
patent: 5343335 (1994-08-01), Hara
patent: 5550683 (1996-08-01), Koren
Dinh Tan
Samsung Electronics Co,. Ltd.
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