Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroki Kuribayashi0
Date of Patent
September 11, 2007
0Patent Application Number
108524230
Date Filed
May 25, 2004
0Patent Primary Examiner
Patent abstract
A waveform equalizer is designed to perform high frequency enhancement on a read signal without increasing inter symbol interference even when the shortest run length of the read signal is not greater than twice the clock period of the channel clock signal. An addition value of weighted values of signal levels of an amplitude limited read signal obtained by limiting the amplitude of the read signal, where the signal levels are at first and second points of time, is added to a signal level at an intermediate timing of the first and second points of time, and a result of the addition is outputted as an equalization corrected read signal.
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