Inventor

NAVARRO WILLIAM

FR12 patents

⚠️ This page may combine multiple inventors who share the name “NAVARRO WILLIAM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATRA COMMUNICATION

4 patents

US5974377AOct 26, 1999

Analysis-by-synthesis speech coding method with open-loop and closed-loop search of a long-term prediction delay

MATRA COMMUNICATION49 citations90

US5899968AMay 4, 1999

Speech coding method using synthesis analysis using iterative calculation of excitation weights

MATRA COMMUNICATION23 citations90

US5642465AJun 24, 1997

Linear prediction speech coding method using spectral energy for quantization mode selection

MATRA COMMUNICATION30 citations88

US5644679AJul 1, 1997

Method and device for preprocessing an acoustic signal upstream of a speech coder

MATRA COMMUNICATION3 citations58

NORTEL NETWORKS CORP

2 patents

US5995923ANov 30, 1999

Method and apparatus for improving the voice quality of tandemed vocoders

NORTEL NETWORKS CORP163 citations98

US6108560AAug 22, 2000

Wireless communications system

NORTEL NETWORKS CORP143 citations97

NORTEL NETWORKS LTD

2 patents

US6324515B1Nov 27, 2001

Method and apparatus for asymmetric communication of compressed speech

NORTEL NETWORKS LTD24 citations92

US7639601B2Dec 29, 2009

Methods and apparatus for data communication

NORTEL NETWORKS LTD8 citations82

RABIPOUR RAFI

2 patents

US8116335B2Feb 14, 2012

Methods and apparatus for data communication

RABIPOUR RAFI0 citations49

US8194649B2Jun 5, 2012

Methods and apparatus for data communication

RABIPOUR RAFI1 citations48

MATRA COMMUNICATIONS

1 patent

US5963898AOct 5, 1999

Analysis-by-synthesis speech coding method with truncation of the impulse response of a perceptual weighting filter

MATRA COMMUNICATIONS44 citations88

NORTEL MATRA CELLULAR

1 patent

US6816511B1Nov 9, 2004

Transcoding device provided with a derivation

NORTEL MATRA CELLULAR0 citations51