MULTI-STAGE SPEECH CODER WITH TRANSFORM CODING OF PREDICTION RESIDUAL SIGNALS WITH QUANTIZATION BY AUDITORY MODELS - Patent 0954851

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EP 0 954 851 A1

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(43)	Date of publication:
	10.11.1999 Bulletin 1999/45

(21)	Application number: 97907830.0

(22)	Date of filing: 26.02.1997

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International Patent Classification (IPC):

G10L 19/ 04^{( . )}
G10L 19/ 02^{( . )}
H03M 7/ 30^{( . )}

G10L 19/ 00^{( . )}
G10L 19/ 12^{( . )}
H04B 14/ 04^{( . )}

(86)	International application number:
	PCT/US1997/002898

(87)	International publication number:
	WO 1997/031367 (28.08.1997 Gazette 1997/37)

(84)	Designated Contracting States:
	DE FR GB

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Priority:

26.02.1996 US 19960012296P

(71)	Applicant: AT&T Corp.
	New York, NY 10013-2412 (US)

(72)	Inventor:
	CHEN, Juin-Hwey Neshanic Station, NJ 08853 (US)

(74)	Representative: Harding, Richard Patrick, et al
	Marks & Clerk, Nash Court, Oxford Business Park South Oxford OX4 2RU Oxford OX4 2RU (GB)

(54)	MULTI-STAGE SPEECH CODER WITH TRANSFORM CODING OF PREDICTION RESIDUAL SIGNALS WITH QUANTIZATION BY AUDITORY MODELS