G - Physics – 10 – L
Patent
G - Physics
10
L
354/47
G10L 19/06 (2006.01)
Patent
CA 1240396
RELP VOCODER IMPLEMENTED IN DIGITAL SIGNAL PROCESSORS ABSTRACT OF THE DISCLOSURE A residual-excited linear prediction (RELP) vocoder implemented in two digital signal processors, one for a transmitter system and the other for a remotely located receiver system. The transmitter digital signal processor is adapted for processing 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 for- matted 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.
494448
Hughes Electronics Corporation
Smart & Biggar
LandOfFree
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