Title:
DATA RECORDING/REPRODUCING DEVICE USING PARTIAL RESPONSE DEMODULATING METHOD
Document Type and Number:
Japanese Patent JP2002157828
Kind Code:
A
Abstract:
To enlarge the minimum inter-signal distance of a high-order partial- less system such as EEPRML(Extended EPRML) and EEEPRML(Extended EEPRML) signal processing systems and to improve an S/N.
The waveform of data reproduced from a medium 3 is converted into an asymmetrical response waveform in a discrete filter 18 and data are reproduced in an MEEPRML processing circuit 19 based on output converted into the asymmetrical response waveform.
Inventors:
MITA SEIICHI
SAWAGUCHI HIDEKI
KOBAYASHI NAOYA
KONDO MASAHARU
SAWAGUCHI HIDEKI
KOBAYASHI NAOYA
KONDO MASAHARU
Application Number:
JP2001286109A
Publication Date:
May 31, 2002
Filing Date:
August 04, 1997
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G11B20/10; G11B20/18; H03M13/39; (IPC1-7): G11B20/10; G11B20/18; H03M13/39
Attorney, Agent or Firm:
Sakuta Yasuo