Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8340318 | Methods and systems for measuring performance of a noise cancellation system | David C. Copley, Scott D. Sommerfeldt | 2012-12-25 |
| 8270625 | Secondary path modeling for active noise control | Scott D. Sommerfeldt, Jonathan Blotter | 2012-09-18 |
| 8068616 | Methods and systems for controlling noise cancellation | David C. Copley, Scott D. Sommerfeldt | 2011-11-29 |
| 7933420 | Methods and systems for determining the effectiveness of active noise cancellation | David C. Copley, Scott D. Sommerfeldt | 2011-04-26 |
| 7327849 | Energy density control system using a two-dimensional energy density sensor | Scott D. Sommerfeldt | 2008-02-05 |