Data conversion device and recording/reproduction apparatus

Details Data conversion device and recording/reproduction apparatus Data conversion device and recording/reproduction apparatus

1993-06-08

1995-07-11

Hajec, Donald

Dynamic magnetic information storage or retrieval

General processing of a digital signal

In specific code or form

360 40, G11B 509

Patent

active

054326516

ABSTRACT:
M sets of digital data obtained by adding a control bit to an n-bit data string are collected to generate 2.sup.m kinds of m(n+1)-bit data strings, with I-NRZI modulation being applied to these data strings to generate m kinds of I-NRZI modulated data strings and the I-NRZI modulated data strings are subject to spectrum analysis for the desired frequency components, in order to supply one of the I-NRZI modulated data strings as a recording signal based on the result of the spectrum analysis.

REFERENCES:
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patent: 4853809 (1989-08-01), Nemoto
patent: 5126892 (1992-06-01), Nagarawa
patent: 5142421 (1992-08-01), Kalhman et al.
patent: 5229891 (1993-07-01), Yoshimura et al.
patent: 5233488 (1993-08-01), Yanagihara
patent: 5253130 (1993-10-01), Kaaden et al.
patent: 5258879 (1993-11-01), Shimotashiro et al.
patent: 5267261 (1993-11-01), Blakeney, II et al.

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