Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Orimitsu Serizawa0
Date of Patent
December 2, 2008
0Patent Application Number
109782910
Date Filed
October 29, 2004
0Patent Primary Examiner
Patent abstract
A data reproduction device for equalizing a reproduced digital signal. A signal reproduced using a reproduction head is sequentially processed by an analogue filter, an A/D, and an interpolator before being supplied to a digital equalizer. The digital equalizer digitally equalizes an input digital signal to output to a subsequent Viterbi decoder, or the like. The digital equalizer comprises a variable BPF, and a variable FIR filter, and the filtering characteristic is variably adjusted.
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