EP 0203940 A4 19870407 - RELP VOCODER IMPLEMENTED IN DIGITAL SIGNAL PROCESSORS.
Title (en)
RELP VOCODER IMPLEMENTED IN DIGITAL SIGNAL PROCESSORS.
Title (de)
RELP-VOKODER ZUR VERWENDUNG IN DIGITALSIGNALPROZESSOREN.
Title (fr)
VOCODER RELP POUR PROCESSEURS DE SIGNAUX NUMERIQUES.
Publication
Application
Priority
US 66744684 A 19841102
Abstract (en)
[origin: WO8602726A1] A residual-excited linear prediction (RELP) vocoder implemented in two digital signal processors, one for a transmitter system (Fig. 1) and the other for a remotely located receiver system (Fig. 2). The transmitter processes digital speech data signal samples to provide a formatted transmission signal including (a) a quantized residual signal generated by inverse filtering of the samples in accordance with linear predictive coding (LPC) coefficients generated from the samples, (b) quantized LPC coefficients, and (c) pitch and gain parameters generated during quantization of the residual signal from the inverse filtered samples, all of which are generated by the processor from the digital speech data signal samples. The receiver digital signal processor is adapted for processing the formatted transmission signal to synthesize reconstructed digital speech data signals. Transmitter and receiver systems that are commonly located may be included in a single digital signal processor.
IPC 1-7
IPC 8 full level
G10L 19/06 (2013.01)
CPC (source: EP)
G10L 19/06 (2013.01)
Citation (search report)
- [X] ICASSP 84 - IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, 19th-21st March 1984, San Diego, US, vol. 2, pages 27.8.1-27.8.4, IEEE, New York, US; M. DANKBERG et al.: "Implementation of the RELP Vocoder using the TMS320"
- [XP] ICASSP 85 - IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, 26th-29th March 1985, Tampa, US, vol. 3, pages 969-972, IEEE, New York, US; R.L. ZINSER: "An efficient pitch-aligned high-frequency regeneration technique for RELP Vocoders"
- See references of WO 8602726A1
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8602726 A1 19860509; AU 5019885 A 19860515; AU 577641 B2 19880929; CA 1240396 A 19880809; DK 311386 A 19860630; DK 311386 D0 19860630; EP 0203940 A1 19861210; EP 0203940 A4 19870407; JP S63500896 A 19880331; NO 862602 D0 19860627; NO 862602 L 19860901
DOCDB simple family (application)
US 8502168 W 19851101; AU 5019885 A 19851101; CA 494448 A 19851101; DK 311386 A 19860630; EP 85905709 A 19851101; JP 50505785 A 19851101; NO 862602 A 19860627