Digital signal reproducing apparatus

Details Digital signal reproducing apparatus Digital signal reproducing apparatus

1994-01-28

1995-07-04

Hajec, Donald

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

360 46, G11B 509

Patent

active

054305829

ABSTRACT:
Disclosed is a digital signal reproducing apparatus, which detects a zone in which sample values, obtained by sampling a read signal, continuously increase or continuously decrease over a predetermined time, and compensates the phase of a sampling clock based on a sample value obtained at a middle point in this detection zone. This structure ensures reproduction of a digital signal with the sampling clock whose phase is synchronized with the center of the amplitude of the read signal even in a reproducing apparatus which employs a partial response system in which a read signal is a multi-value signal that will take three values, five values, etc.

REFERENCES:
patent: 4819103 (1989-04-01), Okamura
patent: 4906941 (1990-03-01), Kato et al.
patent: 5233482 (1993-08-01), Galbraith et al.
patent: 5233632 (1993-08-01), Baum et al.
patent: 5247401 (1993-09-01), Umemoto et al.
patent: 5267267 (1993-11-01), Kazawa et al.

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