| 11604538 |
Electric field touchscreen |
Matthew Hungerford |
2023-03-14 |
| 10949021 |
Electric field touchscreen |
Matthew Hungerford |
2021-03-16 |
| 9768772 |
Polarity adaptive power source apparatus |
Daniel D. Hershey, Jason Evans Goulden, Shelomon Patrick Doblack, Manuel Rinley Deeds, III, Hsueh Jang Su +2 more |
2017-09-19 |
| 8559621 |
Donned and doffed headset state detection |
John F. Gerhardt, Timothy P. Johnston, Edward L. Reuss |
2013-10-15 |
| 8538009 |
Donned and doffed headset state detection |
John F. Gerhardt, Timothy P. Johnston, Edward L. Reuss |
2013-09-17 |
| 8428285 |
Microphone screen with common mode interference reduction |
Ching Shyu, Dennis S. Fish |
2013-04-23 |
| 8369535 |
Acoustic signal level limiter for hearing safety |
Ching Shyu, Robert Bernardi |
2013-02-05 |
| 8335312 |
Donned and doffed headset state detection |
John F. Gerhardt, Timothy P. Johnston, Edward L. Reuss |
2012-12-18 |
| 7616769 |
Variable and shiftable acoustic output signal limiter |
Ching Shyu, Robert Bernardi |
2009-11-10 |
| 7457757 |
Intelligibility control for speech communications systems |
Iain McNeill |
2008-11-25 |
| 7283635 |
Headset with memory |
Arthur Anderson |
2007-10-16 |
| 7227944 |
Echo reduction for a headset or handset |
John F. Gerhardt, J. Stephen Graham, Iain McNeill |
2007-06-05 |
| 7200238 |
Acoustic signal level limiter |
Ching Shyu, Robert Bernardi |
2007-04-03 |
| 7039179 |
Echo reduction for a headset or handset |
John F. Gerhardt, J. Stephen Graham, Iain McNeill |
2006-05-02 |
| 6671371 |
Adaptive transmit amplifier |
Iain McNeill |
2003-12-30 |
| 5729603 |
Self-configuring telephone interface unit |
David Huddart |
1998-03-17 |