DATA PROCESSING DEVICE

Title:

DATA PROCESSING DEVICE

Document Type and Number:

WIPO Patent Application WO/2002/059877

Kind Code:

A1

Abstract:

A data processing device for producing a synthesized sound of high quality. A tap generating section (121) generates a prediction tap from synthesized sound data on 40 samples from a sub-frame of data of interest, out of the synthesized sound data produced by decoding speech coded data coded by the CELP method, and synthesized sound data on 40 samples the starting point of which is the point before the sub-frame of interest by a lag represented by the L code disposed in the sub-frame of interest. A prediction section (125) carries out a prediction operation by using the prediction tap and a tap coefficient stored in a coefficient memory (124) so as to decode speech data of high quality. The invention can be applied to a portable telephone for communicating speech.

Inventors:

KONDO TETSUJIRO (JP)
KIMURA HIROTO (JP)
WATANABE TSUTOMU (JP)
HATTORI MASAAKI (JP)

Application Number:

PCT/JP2002/000491

Publication Date:

August 01, 2002

Filing Date:

January 24, 2002

Export Citation:

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Assignee:

SONY CORP (JP)
KONDO TETSUJIRO (JP)
KIMURA HIROTO (JP)
WATANABE TSUTOMU (JP)
HATTORI MASAAKI (JP)

International Classes:

G10L19/125; G10L19/16; H03M7/36; G10L19/12; (IPC1-7): G10L19/12; G10L19/04; H03M7/36

Foreign References:

JPH0750586A	1995-02-21
JPS63214032A	1988-09-06
JPH01205199A	1989-08-17
JPH0430200A	1992-02-03
JPH04212999A	1992-08-04
JPH04213000A	1992-08-04
JPH04502675A	1992-05-14
JPH06131000A	1994-05-13
JPH06214600A	1994-08-05
JPH113098A	1999-01-06

Other References: