The list below includes the G.729.1 essential patents granted to date.

ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Method for searching fixed codebook based upon global pulse replacement
KR 10-0556831
 
FRANCE TELECOM SA
Method of adapting the noise masking level in an analysis-by-synthesis speech coder employing a short-term perceptual weighting filter
EP 0 743 634 B1
Speech Coding Method Using Linear Prediction and Algebraic Code Excitation
EP 749 626
 
Adapting Noise Masking Level in Analysis-By-Synthesis Employing Perceptual Weighting
US 5 845 244
 
Method for Adaptation of Noise Masking Level to Synthetic Analytical Voice Coder Using Short-Term Perception Weighting Filter
JP 3,481,390
 
 
KONINKLIJKE KPN N.V
Method for coding an analog signal having a repetitive nature and a devicefor coding by said method
EP 0 475 520 B1
 
MINDSPEED TECHNOLOGIES, INC
Codebook Structure for Changeable Pulse Multimode Speech Coding
US 6 556 966
 
Method and System for Reducing Effects of Noise Producing Artifacts in a Voice Codec
US 7 454 335
 
Speech Post-Processing Using MDCT Coefficients
US 7 590 523
 
Pitch Prediction for Packet Loss Concealment
US 7 457 746
 
MITSUBISHI ELECTRIC CORPORATION
Voice coding apparatus
JP 2 905 155
 
Sound Encoding Method and Sound Decoding Method, and Sound Encoding Device and Sound Decoding Device
KR 373 614
EP 1 052 620
 
A Method for Speech Coding, Method for Speech Decoding and their Apparatuses
CN ZL98812682.6
 
Speech Decoding Apparatus and Speech Encoding/Decoding Apparatus
JP 2 659 605
 
Sound Decoding Method and Sound Decoding Device
JP 3 346 765
 
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Acoustic Signal Coding Method and Its Encoding Method
JP 3139602
 
Excitation Signal Orthogonalization Speech Encoding Method
JP 3 293 709
 
Parameter Information Coding Method of Speech
JP 2 853 824
 
Speech Parameter Encoding and Decoding Methods
JP 3 255 189
 
Vector Coding Method, Encoder Using the Same and Decoder Therefore
US RE 38 279
 
Vector Encoding Method and Encoder/Decoder Using the Method
EP 0 786 762 B1
 
Vector Quantizing and Decoding Methods.
JP 3 273 455
 
NTT DOCOMO, INC.
Audio data interpolation apparatus and method, audio data-related information creation apparatus and method, audio data interpolation information transmission apparatus and method, program and recording medium thereof

KR 591 350

SG 92 890

CN ZL02800545.7

 
PANASONIC CORPORATION
Speech Coder and Speech Decoder
JP 3235543
 
SIEMENS AKTIENGESELLSCHAFT
Method and apparatus for artificially expanding the bandwidth of voice signals
EP 1 825 461 
 
Noise supression process and device
EP 1 869 671 
 
Method and Device for Limiting a Stream of Audio Data with a Scalable BIt Rate
US 6 526 384 
 
TOSHIBA CORPORATION
Gain-shape Vector Quantization Method and its Application to the Speech Coding Method and Apparatus
JP 3 420 222
 
Speech Coding and Decoding Apparatus
US RE36 721
 
Speech Decoding Method and Apparatus Thereof
JP 4 047 296
 
Speech Decoding Apparatus and Speech Encoding Apparatus
JP 3 489 748
 
 
VOICEAGE CORPORATION

Algebraic Codebook with Signal-Selected Pulse Amplitude/Position for Fast Coding of Speech

EP 0 808 496 B1

AR 000 871 B1

AT 808 496

AU 708 392

BE 808 496

CA 2 210 765

CH 808 496

CN ZL02107907.2

DE 196 04 273

DK 808 496

ES 9 650 025

FI 117 994

FR 2 730 336

GB 2 297 671

GR 808 496

HK 1 002 492

IE 808 496

IN 187 453

IT 1 305 724

LI 808 496

LU 808 496

MC 808 496

MX 195 924

MY 119038-A

NL 808 496

NO 318 595

PT 808 496

RU 2 142 166

SE 9 600 437,9

ZA 96/0852