Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6332026 | Bass management system for home theater equipment | Minna Juhola, Juha Laaksonen | 2001-12-18 |
| 5559891 | Device to be used for changing the acoustic properties of a room | Aki Mäkivirta | 1996-09-24 |
| 5509081 | Sound reproduction system | — | 1996-04-16 |
| 5485524 | System for processing an audio signal so as to reduce the noise contained therein by monitoring the audio signal content within a plurality of frequency bands | Aki Mäkivirta | 1996-01-16 |
| 5440641 | Active noise cancellation system | — | 1995-08-08 |