| 7843954 |
Scaleable VoIP telephone line circuit |
Zaher Baidas, Paul Nicholas |
2010-11-30 |
| 6697423 |
Precursor decision feedback equalizer (PDFE) |
Gary Q. Jin |
2004-02-24 |
| 6661895 |
Zero-delay structure for sub-band echo cancellation |
Qu Gary Jin, Kon Max Wong, Qiang Wu, Philippe Wu |
2003-12-09 |
| 6608897 |
Double-talk insensitive NLMS algorithm |
Gary Q. Jin, Thomas Qian |
2003-08-19 |
| 6522747 |
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James P. Reilly, Nima Ahmadvad, Mike Seibert |
2003-02-18 |
| 6282286 |
Nonlinear processor for acoustic echo canceller with background noise preservation and long echo tail suppression |
Gary Q. Jin, Thomas Qian |
2001-08-28 |
| 6138244 |
Timing recovery with minimum jitter movement |
Gary Q. Jin |
2000-10-24 |
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Tone and periodical signal detection |
Gary Q. Jin |
2000-09-19 |
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Signal processing circuit |
— |
1999-11-23 |
| 5937009 |
Sub-band echo canceller using optimum wavelet packets and cross-band cancellation |
Kon Max Wong, Qu Gary Jin, Qiang Wu, Phillippe Wu |
1999-08-10 |
| 5471528 |
Voice switched speakerphone with filters having exponential transfer function in the monitoring path |
— |
1995-11-28 |
| 4796287 |
Digital loudspeaking telephone |
Gerald Kuhn |
1989-01-03 |
| 4694482 |
Digital tone detector |
Patrick R. Beirne, Zbigniew B. Styrna |
1987-09-15 |
| 4669114 |
Digital tone detector |
Patrick R. Beirne, Zbigniew B. Styrna |
1987-05-26 |