| 8948418 |
Noise masking communications apparatus |
— |
2015-02-03 |
| 8509459 |
Noise cancelling microphone with reduced acoustic leakage |
— |
2013-08-13 |
| 8208673 |
Miniaturized acoustic boom structure for reducing microphone wind noise and ESD susceptibility |
John S. Graham |
2012-06-26 |
| 8111853 |
Dual mode earphone with acoustic equalization |
— |
2012-02-07 |
| 7991178 |
Method and device for noise control in a headset |
Ching Shyu |
2011-08-02 |
| 7499555 |
Personal communication method and apparatus with acoustic stray field cancellation |
— |
2009-03-03 |
| 7349547 |
Noise masking communications apparatus |
— |
2008-03-25 |
| 6768804 |
Adjustable microphone boom with acoustic valve |
— |
2004-07-27 |
| 6392137 |
Polyphonic guitar pickup for sensing string vibrations in two mutually perpendicular planes |
— |
2002-05-21 |
| 6069306 |
Stringed musical instrument and methods of manufacturing same |
John S. Allen |
2000-05-30 |
| 5917923 |
Satellitic compact electroacoustical transducing |
Gerald F. Caron, Rakesh C. Pandey, Ricardo F. Carreras, Dorie A. Sabol, Charles Barker +1 more |
1999-06-29 |