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Automatic gain control for an adaptive finite impulse response and method therefore |
David L. Barron, Sean S. You |
2006-11-28 |
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Controlling attenuation during echo suppression |
David L. Barron, Sean S. You |
2006-06-20 |
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Speech recognition using polynomial expansion and hidden markov models |
David L. Barron |
2005-08-09 |
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Full-duplex hands-free transparency circuit and method therefor |
James B. Piket, Christopher W. Springfield |
2004-09-28 |
| 6707912 |
Method and apparatus for setting a step size for an adaptive filter coefficient of an echo canceller |
James A. Stephens, James B. Piket, Ernest Chen |
2004-03-16 |
| 6658112 |
Voice decoder and method for detecting channel errors using spectral energy evolution |
David L. Barron, Paul Kennedy |
2003-12-02 |
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Echo canceler and double-talk detector for use in a communications unit |
James B. Piket, Lance Foreman Amos, Holly Elizabeth Hall |
2002-07-02 |
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Simultaneous transfer of voice and data information using multi-rate vocoder and bit control protocol |
Steven Peter Allen, James B. Piket |
2000-08-15 |
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Radio telecommunication device and method of authenticating a user with a voice authentication token |
Paul R. Kennedy, Timothy Gerard Hall |
2000-07-04 |
| 5926756 |
Method and system for programming a cellular phone |
Gerald V. Piosenka, Marc Alan Newman, James B. Piket |
1999-07-20 |
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Multi-channel echo canceler and method using convolution of two training signals |
Thomas Nall, Thomas Callaghan |
1999-04-20 |
| 5856970 |
Multi-channel echo cancellation method and apparatus |
Donald Gee, Bruce Geren, James B. Piket |
1999-01-05 |
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Balance differential receiver |
Steven Peter Allen |
1998-09-29 |
| 5812942 |
Balanced differential radio receiver and method of operation |
Steven P. Allen |
1998-09-22 |
| 5751718 |
Simultaneous transfer of voice and data information using multi-rate vocoder and byte control protocol |
David T. Gustafson |
1998-05-12 |
| 5721782 |
Partitioned echo canceler utilizing decimation echo location |
James B. Piket, Daryl Bergstrom |
1998-02-24 |
| 5504802 |
Communication system apparatus for transmitting and receiving data having a radio wireline interface |
Paul R. Kennedy, Timothy Gerard Hall |
1996-04-02 |
| 5357567 |
Method and apparatus for volume switched gain control |
David L. Barron, James A. Stephens |
1994-10-18 |
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CELP vocoder with efficient adaptive codebook search |
David L. Barron |
1993-11-23 |
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Efficient codebook search for CELP vocoders |
David L. Barron |
1993-02-16 |
| 5179594 |
Efficient calculation of autocorrelation coefficients for CELP vocoder adaptive codebook |
David L. Barron |
1993-01-12 |
| 5173941 |
Reduced codebook search arrangement for CELP vocoders |
David L. Barron |
1992-12-22 |
