Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8320552 | Delay estimator | — | 2012-11-27 |
| 8295762 | Distributed blind source separation | — | 2012-10-23 |
| 8290143 | Delay estimator | — | 2012-10-16 |
| 8195449 | Low-complexity, non-intrusive speech quality assessment | Stefan Bruhn, Volodya Grancharov | 2012-06-05 |
| 7590530 | Method and apparatus for improved estimation of non-stationary noise for speech enhancement | David Zhao, Alexander Ypma, Bert Devries | 2009-09-15 |
| 7502733 | Method and arrangement in a communication system | Soren V. Andrsen, Patrik Sorqvist | 2009-03-10 |
| 7321851 | Method and arrangement in a communication system | Soren V. Andrsen, Patrik Sorqvist | 2008-01-22 |
| 7120587 | Sinusoidal model based coding of audio signals | Richard Heusdens, Renat Vafin | 2006-10-10 |
| 7020615 | Method and apparatus for audio coding using transient relocation | Renat Vafin, Richard Heusdens, Steven Leonardus Josephus Dimphina Elisabeth Van De Par | 2006-03-28 |
| 6631347 | Vector quantization and decoding apparatus for speech signals and method thereof | Moo Young Kim | 2003-10-07 |
| 6223151 | Method and apparatus for pre-processing speech signals prior to coding by transform-based speech coders | Thomas Eriksson | 2001-04-24 |
| 6169970 | Generalized analysis-by-synthesis speech coding method and apparatus | — | 2001-01-02 |
| 5884253 | Prototype waveform speech coding with interpolation of pitch, pitch-period waveforms, and synthesis filter | — | 1999-03-16 |
| 5839102 | Speech coding parameter sequence reconstruction by sequence classification and interpolation | Jesper Haagen | 1998-11-17 |
| 5719993 | Long term predictor | — | 1998-02-17 |
| 5717823 | Speech-rate modification for linear-prediction based analysis-by-synthesis speech coders | — | 1998-02-10 |
| 5704003 | RCELP coder | Dror Nahumi | 1997-12-30 |
| 5675701 | Speech coding parameter smoothing method | Hans Petter Knagenhjelm | 1997-10-07 |
| 5517595 | Decomposition in noise and periodic signal waveforms in waveform interpolation | — | 1996-05-14 |
| 5513297 | Selective application of speech coding techniques to input signal segments | Peter Kroon | 1996-04-30 |
| 5267317 | Method and apparatus for smoothing pitch-cycle waveforms | — | 1993-11-30 |
| 5091945 | Source dependent channel coding with error protection | — | 1992-02-25 |
| 4910781 | Code excited linear predictive vocoder using virtual searching | Richard Harry Ketchum, Daniel J. Krasinski | 1990-03-20 |
| 4899385 | Code excited linear predictive vocoder | Richard Harry Ketchum, Daniel J. Krasinski | 1990-02-06 |