Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8660840 | Method and apparatus for predictively quantizing voiced speech | Sarath Manjunath, Pengjun Huang, Eddie-Lun Tik Choy, Andrew P. DeJaco | 2014-02-25 |
| 8358617 | Enhanced conversion of wideband signals to narrowband signals | Khaled Helmi El-Maleh, Andrew P. DeJaco | 2013-01-22 |
| 8243695 | Method and apparatus for improved detection of rate errors in variable rate receivers | Khaled Helmi El-Maleh, Eddie-Lun Tik Choy, Andrew P. DeJaco, Pengjun Huang | 2012-08-14 |
| 7590096 | Method and apparatus for improved detection of rate errors in variable rate receivers | Khaled Helmi El-Maleh, Eddie-Lun Tik Choy, Andrew P. DeJaco, Pengjun Huang | 2009-09-15 |
| 7577563 | Enhanced conversion of wideband signals to narrowband signals | Khaled Helmi El-Maleh, Andrew P. DeJaco | 2009-08-18 |
| 7426466 | Method and apparatus for quantizing pitch, amplitude, phase and linear spectrum of voiced speech | Sharath Manjunath, Pengjun Huang, Eddie-Lun Tik Choy, Andrew P. DeJaco | 2008-09-16 |
| 7113522 | Enhanced conversion of wideband signals to narrowband signals | Khaled Helmi El-Maleh, Andrew P. DeJaco | 2006-09-26 |
| 7061934 | Method and apparatus for interoperability between voice transmission systems during speech inactivity | Khaled Helmi El-Maleh, Andrew P. DeJaco | 2006-06-13 |
| 6804218 | Method and apparatus for improved detection of rate errors in variable rate receivers | Khaled Helmi El-Maleh, Eddie-Lun Tik Choy, Andrew P. DeJaco, Pengjun Huang | 2004-10-12 |
| 6754624 | Codebook re-ordering to reduce undesired packet generation | Eddie-Lun Tik Choy, Andrew P. DeJaco | 2004-06-22 |
| 6631139 | Method and apparatus for interoperability between voice transmission systems during speech inactivity | Khaled Helmi El-Maleh, Andrew P. DeJaco | 2003-10-07 |
| 6438518 | Method and apparatus for using coding scheme selection patterns in a predictive speech coder to reduce sensitivity to frame error conditions | Sharath Manjunath, Andrew P. DeJaco, Eddie-Lun Tik Choy | 2002-08-20 |
| 6434519 | Method and apparatus for identifying frequency bands to compute linear phase shifts between frame prototypes in a speech coder | Sharath Manjunath, Andrew P. DeJaco, Pengjun Huang, Eddie-Lun Tik Choy | 2002-08-13 |
| 6393394 | Method and apparatus for interleaving line spectral information quantization methods in a speech coder | Sharath Manjunath | 2002-05-21 |