EP 0694907 A2 19960131 - Speech coder
Title (en)
Speech coder
Title (de)
Sprachkodierer
Title (fr)
Codeur de parole
Publication
Application
Priority
JP 18790394 A 19940719
Abstract (en)
A long-period prediction circuit (160), which is provided in this speech coder and outputs an optimum delay code of delay codes indicative of a pitch correlation of a speech signal, extracts delay codes by selecting a predetermined section of delay codes and/or while evenly or unevenly thinning out the delay codes, conducts preliminary selection of delay codes through closed-loop search of the extracted delay codes and determines an optimum delay code by executing closed-loop search with respect to the preliminarily selected delay codes. <MATH>
IPC 1-7
IPC 8 full level
G10L 19/00 (2006.01); G10L 19/038 (2013.01); G10L 19/04 (2013.01); G10L 19/08 (2013.01); G10L 19/09 (2013.01)
CPC (source: EP)
G10L 19/08 (2013.01); G10L 2019/0003 (2013.01); G10L 2019/0011 (2013.01); G10L 2019/0013 (2013.01)
Citation (applicant)
- US 5097508 A 19920317 - VALENZUELA STEUDE REINALDO A [US], et al
- JP H0398099 A 19910423 - CODEX CORP
- "Int. Conf. on Acoustics, Speech and Signal Processing", 1985, article M. SCHROEDER, B.A. ATAL: "Code-Exited Liner Prediction: High quality Speech at Very Low Rates", pages: 937 - 940
- "Int. Conf. on Acoustics, Speech and Signal Processing", 1986, article IM. TRANSCO, B.S. ATAL: "Efficient procedures for finding the optimum innovation in stochastic corders", pages: 2375 - 2378
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0694907 A2 19960131; EP 0694907 A3 19971015; CA 2154192 A1 19960120; JP H0830299 A 19960202
DOCDB simple family (application)
EP 95111278 A 19950718; CA 2154192 A 19950719; JP 18790394 A 19940719