Corrective method of reproducing magnetic memory signals and app

Details Corrective method of reproducing magnetic memory signals and app Corrective method of reproducing magnetic memory signals and app

1978-03-20

1979-10-09

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

In specific code or form

360 41, 360 51, G11B 509

Patent

active

041707869

ABSTRACT:
The disclosure is concerned with a method of and apparatus for magnetic information recorded on a magnetic recording medium such as a thin magnetic card by the NRZ-I method. The omission of a timing pulse signal is sensed through a detection of two successive timing pulse signals of the same direction of magnetic inversion. As the omission of the timing pulse signal is detected, the missing timing pulse signal is corrected and the data corresponding to the corrected timing pulse signal is temporarily memorized. The memorized data is corrected when an omission of the data signal is detected later.

REFERENCES:
patent: 3382492 (1968-05-01), Santana
patent: 3879753 (1975-04-01), Dunn
patent: 4037257 (1977-07-01), Chari
patent: 4040022 (1977-08-01), Takii

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