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Patent Searching and Data


Title:
REPRODUCED SIGNAL PROCESSOR AND REPRODUCED SIGNAL PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2005/024822
Kind Code:
A1
Abstract:
As shown in Fig. 1, a reproduced signal processor (100) comprises a pattern predictor (103) for predicting a prediction value which is a data sequence of a reproduced signal X and judging whether or not the prediction value agrees with a preset specific pattern, an adaptive equalizer (110) for subjecting the reproduced signal X to adaptive equalization while timely updating the factor W of a digital filter according to the result of the judgment by the pattern predictor (103), and a selector circuit (104) for outputting the output of the adaptive equalizer (110) or the prediction value as a waveform equalization output Y depending on the judgment result. The reproduced signal processor (100) having such a structure realizes waveform equalization most suitable for linear distortion contained in the reproduced signal.

Inventors:
NAKAHIRA HIROYUKI (JP)
Application Number:
PCT/JP2003/011200
Publication Date:
March 17, 2005
Filing Date:
September 02, 2003
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
NAKAHIRA HIROYUKI (JP)
International Classes:
G11B20/10; H03H17/02; H03H21/00; H03H17/06; (IPC1-7): G11B20/10; H03H17/02; H03H21/00
Foreign References:
JPH10145184A1998-05-29
JPH10106158A1998-04-24
JP2000200462A2000-07-18
JPH07287937A1995-10-31
JPH09147490A1997-06-06
Attorney, Agent or Firm:
Hayase, Kenichi (13F Nissay Shin-Osaka Bldg., 3-4-30, Miyahara, Yodogawa-k, Oska-shi Osaka, JP)
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