EP0402947A3 - Procédé et dispositif de codage de la parole utilisant une suite régulière d'impulsions d'excitation - Google Patents

Procédé et dispositif de codage de la parole utilisant une suite régulière d'impulsions d'excitation Download PDF

Info

Publication number: EP0402947A3
Authority: EP; European Patent Office
Prior art keywords: signal; circuit; cross; receive; speech signal
Prior art date: 1989-06-14
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP19900111360

Other languages

German (de)

English (en)

Other versions

EP0402947A2 (fr

EP0402947B1 (fr

Inventor

Yoshihiro C/O Nec Corporation Unno

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

NEC Corp

Original Assignee

NEC Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1989-06-14

Filing date

1990-06-15

Publication date

1991-10-23

1989-06-14 Priority claimed from JP1150770A external-priority patent/JPH0315900A/ja

1989-09-29 Priority claimed from JP1254458A external-priority patent/JP2900431B2/ja

1990-06-15 Application filed by NEC Corp filed Critical NEC Corp

1990-12-19 Publication of EP0402947A2 publication Critical patent/EP0402947A2/fr

1991-10-23 Publication of EP0402947A3 publication Critical patent/EP0402947A3/fr

1997-11-26 Application granted granted Critical

1997-11-26 Publication of EP0402947B1 publication Critical patent/EP0402947B1/fr

2010-06-15 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
- G10L19/113—Regular pulse excitation

Landscapes

Engineering & Computer Science (AREA)
Computational Linguistics (AREA)
Signal Processing (AREA)
Health & Medical Sciences (AREA)
Audiology, Speech & Language Pathology (AREA)
Human Computer Interaction (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Multimedia (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)

EP19900111360 1989-06-14 1990-06-15 Procédé et dispositif de codage de la parole utilisant une suite régulière d'impulsions d'excitation Expired - Lifetime EP0402947B1 (fr)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP1150770A JPH0315900A (ja)	1989-06-14	1989-06-14	音声信号符号化装置
JP150770/89		1989-06-14
JP1254458A JP2900431B2 (ja)	1989-09-29	1989-09-29	音声信号符号化装置
JP254458/89		1989-09-29

Publications (3)

Publication Number	Publication Date
EP0402947A2 EP0402947A2 (fr)	1990-12-19
EP0402947A3 true EP0402947A3 (fr)	1991-10-23
EP0402947B1 EP0402947B1 (fr)	1997-11-26

Family

ID=26480256

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19900111360 Expired - Lifetime EP0402947B1 (fr)	1989-06-14	1990-06-15	Procédé et dispositif de codage de la parole utilisant une suite régulière d'impulsions d'excitation

Country Status (2)

Country	Link
EP (1)	EP0402947B1 (fr)
DE (1)	DE69031749T2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA2084323C (fr) *	1991-12-03	1996-12-03	Tetsu Taguchi	Systeme de codage de signaux vocaux pouvant transmettre un signal vocal a un faible debit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0374941A2 (fr) *	1988-12-23	1990-06-27	Nec Corporation	Système de transmission de la parole utilisant une excitation par impulsions multiples

1990
- 1990-06-15 DE DE1990631749 patent/DE69031749T2/de not_active Expired - Fee Related
- 1990-06-15 EP EP19900111360 patent/EP0402947B1/fr not_active Expired - Lifetime

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0374941A2 (fr) *	1988-12-23	1990-06-27	Nec Corporation	Système de transmission de la parole utilisant une excitation par impulsions multiples

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ICASSP'85 (IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, Tampa, Florida, 26th - 29th March 1985), vol. 1, pages 256-259, IEEE, New York, US; J.P. ADOUL et al.: "Generalization of the multipulse coding for low bit rate coding purposes: the generalized decimation" *
ICASSP'87 (1987 INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, Dallas, Texas, 6th - 9th April 1987), vol. 2, pages 968-971, IEEE, New York, US; A. FUKUI et al.: "Implementation of a multi-pulse speech codec with pitch prediction on a single chip floating-point signal processor" *
ICASSP'88 (1988 INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, New York, 11th - 14th April 1988), vol. 1, pages 227-230, IEEE, New York, US; P. VARY et al.: "Speech codec for the European mobile radio system" *

Also Published As

Publication number	Publication date
EP0402947A2 (fr)	1990-12-19
EP0402947B1 (fr)	1997-11-26
DE69031749T2 (de)	1998-05-14
DE69031749D1 (de)	1998-01-08

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1990-11-03	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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