United States Patent
US Patent 7440580: Room mode bass absorption through combined…
US 7440580 · granted 2008-10-21
| Patent Number | 7440580 |
|---|---|
| Title | Room mode bass absorption through combined diaphragmatic and helmholtz resonance techniques |
| Filed | 2004-01-16 |
| Granted | 2008-10-21 |
| Inventor(s) | Anthony Grimani, Evan Reiley |
| Assignee | Performance Media Ind Ltd |
| CPC Classification | H04R1/2869, H04R1/20, H04R1/00 |
| Number of Claims | 2 |
Claims Summary
1. An acoustical bass absorber apparatus for reducing frequency response errors introduced by standing waves, said apparatus comprising:
a housing portion defining an internal volume;