Signal processing circuit

Details Signal processing circuit Signal processing circuit

2006-05-16

2006-05-16

Chin, Stephen (Department: 2634)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S350000, C360S065000

Reexamination Certificate

active

07046745

ABSTRACT:
In a data demodulating method, predetermined input data is demodulated based upon a response characteristic of the partial response class 4; the demodulated input data is discrete-filtered to thereby produce filtering data; and the filtering data is maximum likelihood-decoded to thereby produce asymmetrical response data. Further, a magnetic recording/reproducing apparatus is arranged by using this data demodulating method.

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E. Eleftheriou et al, “Improving Performance of PRML/EPRML through Noise Prediction”, IEEE Transactions on Magnetics, vol. 32, No. 5, Sep. 1996, pp. 3968-3970.

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