Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of biasing or erasing
Patent
1995-06-07
2000-09-19
Kim, W. Chris
Dynamic magnetic information storage or retrieval
General recording or reproducing
Specifics of biasing or erasing
360 51, G11B 503, G11B 509
Patent
active
061221260
ABSTRACT:
A digital magnetic reproducing apparatus comprises a reproducing head to reproduce data from a magnetic recording medium; an equalizer for shaping, by a partial response method, the waveform of the reproduced signal outputted from the reproducing head; and a decoder for decoding, by a maximum likelihood decoding method, the equalized reproduced signal obtained from the equalizer. The reproducing head employed in this apparatus is an MR (magnetoresistance effect) head which is capable of reducing the second harmonic distortion of the reproduced signal to be -25 dB or lower. Therefore the deterioration of the bit error rate that may result from the nonlinear distortion of the MR head can be further lowered within a sufficiently suppressed range in practical use.
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Shimano Yoshiharu
Yada Hiroaki
Yamakoshi Takamichi
Kim W. Chris
Sony Corporation
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