Magnetic reproducing system for a digital signal

Details Magnetic reproducing system for a digital signal Magnetic reproducing system for a digital signal

G - Physics

11

B

352/19

G11B 5/09 (2006.01) G11B 20/10 (2006.01)

Patent

CA 1171523

ABSTRACT OF THE DISCLOSURE A magnetic reproducing system reproduces a recording two-valued code signal from a magnetic recording medium, and detects the signal level of the reproduced signal to reproduce a digital signal of the above desired two-valued code through a converter and a delay circuit and then feeding back this digital signal to carry out a modulo-2 addition. The magnetic recording medium is recorded with the above recording two-valued code signal. The magnetic reproducing system comprises a magnetic head for reproducing the two-valued code recorded on the magnetic recording medium, an equalizer for performing wave-equalization of the signal reproduced by the magnetic head, and a signal detection circuit for detecting the signal level of a three-valued code signal obtained from the above equalizer, to produce a two-valued detection signal in which signal levels corresponding to "+1" and "-1" of the three-valued code signal is set to a signal level "+1" and a signal level corresponding to "0" of the three-valued code signal is set to a signal level "0", as a reproduced output signal of the digital signal.

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