Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8165872 | Method and system for improving speech quality | Mohammad Reza Zad-Issa | 2012-04-24 |
| 8018853 | Using RTCP statistics for media system control | Darwin Rambo | 2011-09-13 |
| 7987095 | Method and system for dual mode subband acoustic echo canceller with integrated noise suppression | Jes Thyssen | 2011-07-26 |
| 7970124 | Adaptive gain control based on echo canceller performance information | — | 2011-06-28 |
| 7920697 | Interaction between echo canceller and packet voice processing | — | 2011-04-05 |
| 7835311 | Voice-activity detection based on far-end and near-end statistics | — | 2010-11-16 |
| 7760673 | Selectively adaptable far-end echo cancellation in a packet voice system | — | 2010-07-20 |
| 7525918 | Using RTCP statistics for media system control | Darwin Rambo | 2009-04-28 |
| 7477682 | Echo cancellation for a packet voice system | — | 2009-01-13 |
| 7460479 | Late frame recovery method | — | 2008-12-02 |
| 7420937 | Selectively adaptable far-end echo cancellation in a packet voice system | — | 2008-09-02 |
| 7333476 | System and method for operating a packet voice far-end echo cancellation system | — | 2008-02-19 |
| 7333447 | Packet voice system with far-end echo cancellation | — | 2008-02-19 |
| 7263074 | Voice activity detection based on far-end and near-end statistics | — | 2007-08-28 |
| 7254120 | Data rate controller | — | 2007-08-07 |
| 7177278 | Late frame recovery method | — | 2007-02-13 |
| 7164659 | Adaptive gain control based on echo canceller performance information | — | 2007-01-16 |
| 6925174 | Interaction between echo canceller and packet voice processing | — | 2005-08-02 |
| 6101466 | Method and system for improved discontinuous speech transmission | Ajit Venkat Rao | 2000-08-08 |
| 5978760 | Method and system for improved discontinuous speech transmission | Ajit Venkat Rao | 1999-11-02 |
| 5974378 | Multi-stage vector quantization with efficient codebook search | Alan V. McCree | 1999-10-26 |
| 5960010 | Error detection and error concealment of convolutionally encoded data | Christine Liu, Vishu R. Viswanathan | 1999-09-28 |
| 5794199 | Method and system for improved discontinuous speech transmission | Ajit Venkat Rao | 1998-08-11 |