| 9537460 |
Apparatus and method for automatic gain control |
David L. Barron, Andrew Kirby |
2017-01-03 |
| 8983833 |
Method and apparatus for masking wind noise |
Bijal Joshi |
2015-03-17 |
| 8600040 |
Apparatus and method for convergence control |
David L. Barron |
2013-12-03 |
| 8041054 |
Systems and methods for selectively switching between multiple microphones |
David L. Barron |
2011-10-18 |
| 7680653 |
Background noise reduction in sinusoidal based speech coding systems |
— |
2010-03-16 |
| 6810377 |
Lost frame recovery techniques for parametric, LPC-based speech coding systems |
Grant Ian Ho, Marion Baraniecki |
2004-10-26 |
| 6456965 |
Multi-stage pitch and mixed voicing estimation for harmonic speech coders |
— |
2002-09-24 |
| 6438517 |
Multi-stage pitch and mixed voicing estimation for harmonic speech coders |
— |
2002-08-20 |
| 6377920 |
Method of determining the voicing probability of speech signals |
— |
2002-04-23 |
| 6377914 |
Efficient quantization of speech spectral amplitudes based on optimal interpolation technique |
— |
2002-04-23 |
| 6253171 |
Method of determining the voicing probability of speech signals |
— |
2001-06-26 |
| 6233552 |
Adaptive post-filtering technique based on the Modified Yule-Walker filter |
Azhar Mustapha |
2001-05-15 |
| 6098037 |
Formant weighted vector quantization of LPC excitation harmonic spectral amplitudes |
— |
2000-08-01 |
| 5999897 |
Method and apparatus for pitch estimation using perception based analysis by synthesis |
— |
1999-12-07 |
| 5890108 |
Low bit-rate speech coding system and method using voicing probability determination |
— |
1999-03-30 |
| 5774837 |
Speech coding system and method using voicing probability determination |
Joseph Gerard Aguilar |
1998-06-30 |