Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6628791 | Signal derived bias supply for electrostatic loudspeakers | Jeevan G. Bank | 2003-09-30 |
| 6584205 | Modulator processing for a parametric speaker system | Michael E. Spencer, Joseph O. Norris | 2003-06-24 |
| 6577738 | Parametric virtual speaker and surround-sound system | Elwood G. Norris | 2003-06-10 |
| 6535612 | Electroacoustic transducer with diaphragm securing structure and method | Terry J. Conrad | 2003-03-18 |