Self-clocking NRZ recording and reproduction system

Details Self-clocking NRZ recording and reproduction system Self-clocking NRZ recording and reproduction system

1974-08-09

1976-03-30

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

G11B 509

Patent

active

039478785

ABSTRACT:
A magnetic recording and reading system wherein data is written into a magnetic medium in an NRZ code which is interrupted for the insertion of a guaranteed flux transition after each series of eight data cells. On readout, the guaranteed sync transition is used to generate a read clock for strobing purposes. The read clock is compensated to account for physical migration of the sync transition in the medium due to crowding effects or interaction with adjacent flux transitions.

REFERENCES:
patent: 3159840 (1964-12-01), Woo
patent: 3488662 (1970-01-01), Vallee
patent: 3503059 (1970-03-01), Ambmoo

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