Method and apparatus for magnetic recording and reproduction of

Details Method and apparatus for magnetic recording and reproduction of Method and apparatus for magnetic recording and reproduction of

1980-10-16

1983-01-04

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

360 40, G11B 509

Patent

active

043674950

ABSTRACT:
Magnetic recording and reproducing method and apparatus for digital signals. An input binary digital signal is converted into an intermediate signal series by a precoder having a delay circuit for two-time slot delay and a modulo-2 adder. The intermediate signal series is branched to two paths. One signal on one path is delayed by one time slot and subtracted from the other signal on the other path to produce a recording signal to be recorded on a recording medium. A signal reproduced from the recording medium is branched to two paths. One signal on one path is delayed by one time slot and added to the other signal on the other path. The added signal is decoded to produce a binary signal which corresponds to the input binary digital signal.

REFERENCES:
patent: 4195318 (1980-03-01), Price et al.
patent: 4234898 (1980-11-01), Nakagawa et al.

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