Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9131302 | Speaker temperature control using speaker temperature and speaker impedance estimates | Joseph M. Williams | 2015-09-08 |
| 9131294 | Apparatus including microphone arrangements | — | 2015-09-08 |
| 8989428 | Acoustic systems in electronic devices | Matthew D. Hill, Christopher Wilk, Teemu Pekka Silipä | 2015-03-24 |
| 8971561 | Earphone having a controlled acoustic leak port | Michael B. Howes, Yacine Azmi, Scott P. Porter, Jonathan S. Aase, Christopher Wilk | 2015-03-03 |
| 8724841 | Microphone with acoustic mesh to protect against sudden acoustic shock | Christopher Wilk, Jae-Han Lee, Ruchir M. Dave, Scott P. Porter, Sawyer I. Cohen | 2014-05-13 |
| 8548176 | Apparatus including microphone arrangements | — | 2013-10-01 |
| 8457157 | Digital communications system with variable-bandwidth traffic channels | Wendell B. Sander, Barry Corlett, David Tupman, Brian Sander, Jeffrey J. Terlizzi +1 more | 2013-06-04 |
| 8130790 | Digital communications system with variable-bandwidth traffic channels | Wendell B. Sander, Barry Corlett, David Tupman, Brian Sander, Jeffrey J. Terlizzi +1 more | 2012-03-06 |
| 7672693 | Controlling method, secondary unit and radio terminal equipment | Janne Kallio, Jarmo Saari, Tommi Raussi, Ossi Maenpaa, Markus Vaalgamaa +2 more | 2010-03-02 |
| 7372966 | System for limiting loudspeaker displacement | — | 2008-05-13 |