| 7895961 |
Anchor protector |
Fidel Zuniga |
2011-03-01 |
| 7639654 |
Method and apparatus for mobile broadband wireless communications |
Habib Riazi |
2009-12-29 |
| 7031460 |
Telephonic handset employing feed-forward noise cancellation |
Dunmin Zheng |
2006-04-18 |
| 6748005 |
Methods and apparatus for providing a direct frequency hopping wireless interface with a personal computer |
Habib Riazi |
2004-06-08 |
| 6163610 |
Telephonic handset apparatus having an earpiece monitor and reduced inter-user variability |
Charles S. Bartlett |
2000-12-19 |
| 5953428 |
Feedback method of noise control having multiple inputs and outputs |
Michael H. Silverberg |
1999-09-14 |
| 5745588 |
Differential microphone assembly with passive suppression of resonances |
Charles S. Bartlett |
1998-04-28 |
| 5539834 |
Baffled microphone assembly |
Charles S. Bartlett |
1996-07-23 |
| 5511130 |
Single diaphragm second order differential microphone assembly |
Charles S. Bartlett |
1996-04-23 |
| 5491747 |
Noise-cancelling telephone handset |
Charles S. Bartlett, Roger David Benning, John Bradley Hunter, Charles Sanford |
1996-02-13 |
| 5473684 |
Noise-canceling differential microphone assembly |
Charles S. Bartlett |
1995-12-05 |
| 5343523 |
Telephone headset structure for reducing ambient noise |
Charles S. Bartlett, Roger David Benning, John Bradley Hunter |
1994-08-30 |
| 5325438 |
Active noise-cancellation system for automotive mufflers |
Douglas R. Browning |
1994-06-28 |
| 4451113 |
Magnetic safety receptacle and plug |
— |
1984-05-29 |
