Data reproducing apparatus with means for differentiating a read

Details Data reproducing apparatus with means for differentiating a read Data reproducing apparatus with means for differentiating a read

1992-10-09

1994-10-18

Shepperd, John

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

341 68, 375 17, G11B 509, H03M 506, H04L 2534, H04L 2549

Patent

active

053573781

ABSTRACT:
A data reproducing apparatus by which data vertically magnetically recorded on a single layer film medium can be detected readily and accurately with a simple construction by means of a ring head. Upon recording, input data are NRZI converted into a recording sequence, which is vertically magnetically recorded onto a single layer film medium. The data are reproduced from the single layer film medium by means of the ring head, and the reproduction signal is differentiated. The differentiation signal is three-value detected to restore the original data.

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